Cooler heaters

CardioQuip MCH: troubleshooting and error codes

The ServiceForge knowledge base holds 70 documented symptoms for the CardioQuip MCH, with 84 ranked causes, 107 diagnostic checks with test points and expected values, and 0 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

No water flow during prime cycle

Prime button activated but pump does not turn on or valve does not switch, or water flow bursts not observed every ten seconds

Ranked causes

1. Kinks or closed valves blocking water flow in hose loop (common)
2. Insufficient water in ice tank (occasional)
3. Pump or valve malfunction (rare)

First check

Inspect hose connections and water level in ice tank

Test point: ice tank, attached hoses
Expected: No kinks or closed valves; water level adequate

1 more check with pass and fail actions, 2 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Water leaks from unit caution

Water accumulation observed on or under the MCH unit, indicating internal or external water connection leaks.

Ranked causes

1. Loose internal water connections (occasional)
2. Damaged external water connectors (occasional)
3. Internal water system leak (rare)

First check

Inspect external water connectors for leaks and physical damage

Test point: Water inlet, water outlet, drain connectors on exterior
Expected: No visible leaks, no physical damage, connectors intact

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Cabinet or controls physically damaged caution

Dents or other visible physical damage to external cabinet and control surfaces

Ranked causes

1. Shipping or handling damage (occasional)
2. Impact during transport or storage (occasional)

First check

Visually inspect external cabinet and all controls

Test point: Cabinet exterior and control panels
Expected: No dents or visible damage

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Incorrect power outlet or electrical connection high voltage

MCH connected to unsuitable mains supply without proper grounding or amperage

Ranked causes

1. Not using hospital grade grounded 20A outlet (common)
2. Mains supply lacks protective earth (occasional)

First check

Verify outlet is dedicated 20A hospital grade

Test point: Mains outlet label and receptacle
Expected: 20 Ampere AC hospital grade designation visible

1 more check with pass and fail actions, 2 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Internal cabinet water leaks or loose connections caution

Water leaks, loose water connections, or visible damage found inside cabinet during service inspection

Ranked causes

1. Loose water connection fittings or tubing (occasional)
2. Damaged internal water system component (occasional)

First check

Qualified service personnel to remove side panels and inspect interior

Test point: All internal water connections and cabinet interior
Expected: No water leaks, all connections tight, no visible damage

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Internal wiring damage or loose connections high voltage

Exposed wires, loose electrical connections, or visible wiring damage found during service inspection

Ranked causes

1. Loose wiring connections from vibration or improper handling (occasional)
2. Wire insulation damage from abrasion or impact (occasional)

First check

Qualified service personnel to inspect all internal wiring

Test point: All internal wiring and connections
Expected: No exposed wires, all connections tight, no visible damage or abrasion

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Output water temperature not within ±0.5°C of setpoint patient safety

Temperature displayed on system does not match actual water output temperature within ±0.5°C tolerance at various setpoints

Ranked causes

1. Temperature sensor calibration error (common)
2. Insufficient ice in cold water tank for below-nominal setpoints (occasional)

First check

Set system to various temperatures and allow stabilization

Test point: water output temperature port
Expected: Output temperature within ±0.5°C of displayed setpoint, ±0.5°C
Tools: Reliable temperature standard

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Output water temperature not within setpoint tolerance patient safety

Measured output water temperature deviates from display setpoint by more than ±0.5°C across temperature scale

Ranked causes

1. Temperature sensor calibration drift (occasional)
2. Thermostat or heating/cooling element malfunction (rare)

First check

Measure water output temperature at various setpoints

Test point: Water output
Expected: Within ± 0.5°C of display setpoint, ± 0.5°C
Tools: Reliable temperature standard

1 more check with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Overtemp alarm does not activate at 42.5°C patient safety

During alarm test, system fails to activate Overtemp alarm when water temperature reaches or exceeds 42.5°C setpoint

Ranked causes

1. Overtemp alarm threshold not set or sensor malfunction (occasional)
2. Alarm output driver failure (rare)

First check

Stabilize system at 42°C on RUN screen

Test point: Display, water output temperature
Expected: Temperature stabilized at 42°C (±0.5°C), ± 0.5°C
Tools: Reliable temperature standard

3 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Water connector leaks or damage caution

External water connectors show signs of leaks, physical damage, or water accumulation under unit

Ranked causes

1. Loose or damaged water connection (occasional)
2. Internal leak (occasional)

First check

Visually inspect external water connectors

Test point: All water inlet and outlet connectors
Expected: No visible leaks, cracks, or physical damage

1 more check with pass and fail actions, 2 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Water connector leaks or damage detected caution

Leaks, physical damage to external water connectors, or water accumulation on or under unit

Ranked causes

1. Loose or damaged water connection fittings (occasional)
2. Internal water system leak (occasional)

First check

Visually inspect all external water connectors

Test point: All external water connection points
Expected: No leaks, no physical damage

1 more check with pass and fail actions, 2 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Water leak detected caution

Water accumulation on or under unit, or visible leaks at external water connectors

Ranked causes

1. Damaged external water connectors (occasional)
2. Internal water connection failure (occasional)

First check

Inspect external water connectors and connections

Test point: All external water inlet and outlet connectors
Expected: No visible leaks or water accumulation

2 more checks with pass and fail actions, 2 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Cabinet fan not operational caution

Cabinet fan located under system is not running during power-on or normal operation

Ranked causes

1. Cabinet fan not running or blocked (unknown)

First check

Turn on mains power switch

Test point: Front panel power switch
Expected: Switch in ON position, system initializes

1 more check with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Cabinet or control physical damage caution

External cabinet or controls show dents or other visible damage

Ranked causes

1. Damage during shipping or handling (common)

First check

Visually inspect cabinet exterior and all controls

Test point: Entire external surface
Expected: No dents or visible physical damage

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Cannot achieve setpoint below nominal water temperature

System unable to cool output water below nominal tank water temperature even with ice in cold water tank

Ranked causes

1. Insufficient ice in cold water tank (common)

First check

Verify ice level in cold water tank

Test point: Cold water tank
Expected: Adequate ice present for desired setpoint

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Control Module positioning and accessibility caution

MCH positioned in manner that restricts quick access to mains power plug or difficult to unmount Control Module

Ranked causes

1. MCH mains plug location obscured or blocked (occasional)

First check

Verify mains power plug is easily accessible

Test point: MCH mains plug location
Expected: Plug within immediate reach and unobstructed

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Control Module positioning restricts power access caution

MCH positioned without easy access to mains power plug preventing quick disconnection in emergency

Ranked causes

1. Improper equipment positioning (unknown)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Control Module shipping damage caution

Visually inspect for scratched or cracked screen, dents, broken or exposed wires, bent pins after unpacking

Ranked causes

1. Shipping damage during transport (unknown)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Control panel or articulated arm mechanical damage caution

Sharp objects used on switches or excessive tightening of clamp/arm lock causing mechanical damage

Ranked causes

1. Improper tool use or overtightening (unknown)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Dry operation without water circulation caution

System operated without water causing equipment damage to pump and internal components

Ranked causes

1. System drained while in operating mode (unknown)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Dry system operation damage caution

MCH operated without sufficient water or in dry-run mode

Ranked causes

1. System completely drained during operating mode (occasional)

First check

Verify water level before operating MCH

Test point: Tank water level indicator or sight glass
Expected: Water level above minimum mark

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Equipment damage from dry operation caution

MCH operated with insufficient water in cold water tank, risking pump and cooling system damage

Ranked causes

1. Water level in cold water tank drops below 4 inches (common)

First check

Inspect water level in cold water tank

Test point: Cold water tank
Expected: At least 4 inches of water

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Equipment damage from improper lifting caution

MCH lifted by drain or water connections causes structural damage to connectors and internal components.

Ranked causes

1. Lifting MCH by drain or water connections instead of base (common)

First check

Inspect drain and water connectors for damage or looseness

Test point: Drain outlet, water inlet, water outlet connectors
Expected: Connectors secure, no visible damage, no leaks

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Excessive bacteria buildup in tank

Water tank contains excessive bacteria requiring quarterly disinfection to maintain proper operation

Ranked causes

1. Normal bacteria accumulation over time (common)

First check

Prime the system

Test point: Front panel Prime button and water tank
Expected: Pump runs at full speed, valve switches from COOLING to RECIRC approximately every 10 seconds, observe 10-second water flow bursts

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Excessive control panel or articulated arm force caution

Control panel clamp or articulated arm lock overtightened, causing mechanical damage

Ranked causes

1. Excessive tightening force applied to clamp or lock (occasional)

First check

Verify control panel clamp tension

Test point: Control panel clamp handle
Expected: Snug but easily removable by hand

1 more check with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

External cabinet or control damage caution

Dents, cracks, or other visible physical damage to external cabinet or control panels.

Ranked causes

1. Shipping or handling damage (occasional)

First check

Inspect external cabinet and control panels for dents and physical damage

Test point: Entire exterior cabinet surface, control panel, handle
Expected: No visible dents, cracks, or damage; smooth finish

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

External cabinet or controls damaged caution

Dents or other physical damage visible on external cabinet and controls

Ranked causes

1. Shipping damage or rough handling (occasional)

First check

Visually inspect external cabinet and all controls

Test point: Cabinet exterior and control panel
Expected: No dents or physical damage

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Hose water flow blocked

Kinks, closed valves, or obstructions in attached hoses preventing water circulation

Ranked causes

1. Kinked or obstructed hose (common)

First check

Inspect attached hoses for kinks or blockages

Test point: All hose connections
Expected: No kinks, closed valves, or obstructions; clear water flow path

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Improper mains power connection high voltage

MCH not connected to hospital grade grounded outlet or non-protective earth supply creating electrical shock hazard

Ranked causes

1. Connection to non-grounded or inadequate outlet (unknown)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Incompatible heat exchanger pressure rating patient safety

Heat exchanger or blanket with max pressure rating below 83 kPa connected to MCH

Ranked causes

1. Connected equipment rated below 83 kPa maximum pressure (occasional)

First check

Check heat exchanger/blanket pressure rating

Test point: Equipment manufacturer label or documentation
Expected: Maximum pressure rating 83 kPa (12 psi) or higher

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Internal water leaks or loose connections caution

Internal water connections are loose, leaking, or showing visible damage inside cabinet

Ranked causes

1. Loose or deteriorated water connection (occasional)

First check

Visually inspect all internal water lines and connectors

Test point: All internal water connections, hoses, and fittings
Expected: No leaks, drips, or loose connections observed; all fittings secure

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Internal wiring damaged or loose high voltage

Exposed wires, loose connections, or visible damage detected inside cabinet during inspection

Ranked causes

1. Vibration or handling damage during shipping (occasional)

First check

Visual inspection of all internal wiring

Test point: All internal wiring harnesses and connections
Expected: No exposed wires, all connections tight and secure

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Leakage current exceeds 100µA high voltage

Electrical safety analyzer measures leakage current above 100µA under any operating condition (power on/off, normal/reverse polarity, grounded/ungrounded)

Ranked causes

1. Unspecified electrical fault or component degradation (unknown)

First check

Measure leakage current with calibrated electrical safety analyzer

Test point: MCH unit ground and line connections
Expected: less than 100µA, <100µA
Tools: Calibrated electrical safety analyzer

Leakage current exceeds limits high voltage

Electrical leakage current measurement indicates unsafe levels or significant increase from baseline

Ranked causes

1. Electrical insulation degradation or fault in MCH unit (unknown)

First check

Measure leakage current with power on, normal polarity, grounded

Test point: MCH unit terminals to ground
Expected: Less than 100µA, < 100µA
Tools: Calibrated electrical safety analyzer

7 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Missing or improperly affixed warning labels patient safety

Warning labels are not present or are not properly attached to the unit.

Ranked causes

1. Labels damaged or lost during shipping (rare)

First check

Verify all warning labels are present and properly affixed

Test point: All label locations on MCH exterior
Expected: All warning labels present and securely affixed

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Output temperature does not match setpoint

Measured water output temperature deviates from setpoint setting beyond tolerance; displayed temperature differs from actual temperature

Ranked causes

1. Temperature sensor or control circuit calibration error (occasional)

First check

Allow system to stabilize at setpoint

Test point: Display screen and temperature indicator
Expected: Temperature stable at setpoint for minimum stabilization period

1 more check with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Output water temperature exceeds maximum setpoint patient safety

Actual water output temperature exceeds the 42°C maximum setpoint limit beyond tolerance

Ranked causes

1. Heating control circuit overshoot or thermostat malfunction (occasional)

First check

Measure output water temperature at 42°C setpoint

Test point: Water output
Expected: 42°C ± 0.5°C, ± 0.5°C
Tools: Reliable temperature standard

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Overtemp alarm activates patient safety

OVERTEMP screen displayed, audible alarm sounds when water temperature exceeds safe limits

Ranked causes

1. Cold water tank temperature too high (above 42°C) (common)

First check

Silence alarm and observe screen

Test point: OVERTEMP screen display
Expected: OVERTEMP screen remains visible

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Overtemp Alarm does not activate patient safety

System fails to trigger Overtemp Alarm when water temperature exceeds setpoint; OVERTEMP screen does not appear, audible alarm does not sound, or pump does not stop

Ranked causes

1. Water temperature exceeds setpoint without alarm triggering (common)

First check

Verify system is in RUN mode and temperature stabilized

Test point: Display screen and temperature control status
Expected: RUN screen visible, temperature at setpoint 42°C

4 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Power cord damage high voltage

Power cord shows cuts, exposed wiring, bent pins, or other physical damage that creates electrical hazard.

Ranked causes

1. Shipping damage to power cord (occasional)

First check

Inspect power cord for cuts, exposed wire, bent or missing pins

Test point: Entire length of power cord and plug
Expected: Cord intact, no cuts or exposed wires, all pins present and straight

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Power cord damage suspected high voltage

Cuts, exposed wire, bent or missing pins on power cord observed during inspection

Ranked causes

1. Power cord damage from shipping or handling (occasional)

First check

Visually inspect entire length of power cord

Test point: Power cord entire length
Expected: No cuts, exposed wire, bent or missing pins

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Power cord damaged or defective high voltage

Power cord shows cuts, exposed wire, bent or missing pins that could create electrical hazard

Ranked causes

1. Physical damage during shipping or handling (common)

First check

Visually inspect power cord for damage

Test point: Entire length of power cord
Expected: No cuts, exposed wire, bent or missing pins

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Power cord damaged or unsafe high voltage

Cuts, exposed wire, bent or missing pins visible on power cord

Ranked causes

1. Damage during shipping or handling (occasional)

First check

Visually inspect entire length of power cord

Test point: Power cord
Expected: No cuts, exposed wire, bent or missing pins

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Pump does not turn on after priming

Prime button pressed but pump fails to activate; no water flow in ice tank or valve does not cycle

Ranked causes

1. Pump or valve solenoid not responding to prime command (unknown)

First check

Verify water in ice tank before priming

Test point: Ice tank
Expected: Approximately three gallons (12 liters) for MCH-1000(i) or one gallon (4 liters) for MCH-1000(m)

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Pump or valve not responding to Prime button

After pressing Prime button, pump does not turn on or valve does not cycle between cool and recirculation modes

Ranked causes

1. Prime button not functional or electrical issue (unknown)

First check

Press Prime button and observe pump and valve response

Test point: Prime button, pump outlet, recirculation valve
Expected: Pump turns on, valve switches from cool to recirculation mode approximately every ten seconds with ten-second bursts of water flow in ice tank

Sharp object damage to control panel switches caution

Sharp objects used to adjust or select control panel switches

Ranked causes

1. Sharp objects used on control panel switches (occasional)

First check

Inspect control panel switches for damage

Test point: Switch surfaces and edges
Expected: No scratches, gouges, or cracks visible

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Significant increase in leakage current high voltage

Leakage current shows marked increase from baseline measurement, indicating potential component degradation or developing fault

Ranked causes

1. Component deterioration or insulation breakdown (unknown)

System does not enter cooling mode

When temperature is set to 0°C from STANDBY, system fails to enter cooling mode; water does not flow into ice tank or temperature control status does not show COOLING

Ranked causes

1. Temperature control system not switching to cooling mode at 0°C setpoint (unknown)

First check

Verify system in STANDBY mode

Test point: Display screen
Expected: STANDBY screen visible

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

System does not enter cooling mode at 0°C setpoint

When temperature set to 0°C and Run button pressed, system fails to enter cooling mode or water does not flow into ice tank

Ranked causes

1. Temperature control circuit malfunction (unknown)

First check

Set temperature to 0°C and press Run button

Test point: Display screen, water flow to ice tank
Expected: System enters cooling mode; water flows into ice tank; temperature control status reads COOLING

1 more check with pass and fail actions are in ServiceForge. Connect ServiceForge to your AI

System does not enter heating mode

When temperature is set to 42°C, system fails to enter heating mode; no water flow in ice tank or temperature control status does not show HEATING

Ranked causes

1. Temperature control system not switching to heating mode at 42°C setpoint (unknown)

First check

Set temperature setpoint to 42°C

Test point: Temperature control interface
Expected: 42°C displayed as setpoint

1 more check with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

System does not enter heating mode at 42°C setpoint

When temperature set to 42°C, system fails to enter heating mode or water continues flowing into ice tank

Ranked causes

1. Heating circuit or valve malfunction (unknown)

First check

Set temperature to 42°C and observe system response

Test point: Display screen, ice tank water flow
Expected: System enters heating mode; no water flow in ice tank; temperature control status reads HEATING

System does not run through successful power-on test

Unit powers on but system test does not complete successfully; display does not confirm test completion

Ranked causes

1. System test failure, hardware malfunction, or initialization error (unknown)

First check

Turn on mains power switch and observe boot sequence

Test point: Display screen
Expected: System initializes; display shows boot sequence or welcome screen

1 more check with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

System drainage during clinical operation patient safety

Equipment connected to MCH is drained, causing entire heat exchanger network to drain

Ranked causes

1. Draining connected equipment during operation (common)

First check

Verify clinical operation status before draining

Test point: MCH operational mode indicator
Expected: MCH not in active clinical use

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

System drained during clinical operation patient safety

Heat exchanger network drained by draining attached equipment causing patient injury or system damage

Ranked causes

1. Draining attached equipment during operation (unknown)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Unit does not power on high voltage

Mains power switch is ON but unit does not initialize or system test does not run

Ranked causes

1. No power at hospital-grade outlet or incorrect voltage/frequency (common)

First check

Verify mains power switch is OFF before connecting

Test point: Front panel power switch
Expected: Switch in OFF position

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Unit does not run system test on power-up

After plugging in and turning on mains power switch, unit fails to run through successful system test

Ranked causes

1. Power not supplied or outlet mismatch (common)

First check

Verify mains power switch is OFF before connecting

Test point: Front panel mains power switch
Expected: OFF position

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Unit operates with insufficient water in tank caution

MCH running with less than 4 inches of water in cold water tank

Ranked causes

1. Inadequate water level in cold water tank during operation (unknown)

First check

Verify water level in cold water tank before operation

Test point: Cold water tank
Expected: Minimum 4 inches of water depth

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Unit operates with insufficient water level caution

MCH runs with less than 4 inches of water in cold water tank

Ranked causes

1. Dry operation without minimum water level (rare)

First check

Verify water level in cold water tank

Test point: Cold water tank
Expected: Water level at or above 4 inches

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Warning labels missing or improperly affixed patient safety

Warning labels not properly installed on equipment exterior

Ranked causes

1. Labels damaged or dislodged during shipping (occasional)

First check

Verify all required warning labels present and secure

Test point: All label locations on unit exterior
Expected: All warning labels properly affixed and legible

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Warning labels missing or not properly affixed patient safety

Warning labels not present or improperly attached to unit

Ranked causes

1. Damage during shipping or installation (rare)

First check

Verify all warning labels present and securely affixed

Test point: All external cabinet surfaces
Expected: All warning labels present and properly affixed

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

More symptoms

Water hose flow blocked or obstructed
Water level drops below 4 inches
Water level in cold water tank drops below four inches during operation
Water level in ice tank drops below 4 inches
Water strainer contamination
Water strainer contamination or damage
Water strainers clogged or dirty
Water tank contains solids or debris
Water tank contains solids, debris, or foul odor
Water tank contains solids, debris, or foul smell

10 more symptoms with ranked causes and checks are in ServiceForge. Connect ServiceForge to your AI

Community

0 fixes logged by technicians through their AI, with outcomes, for this model.

ServiceForge knowledge base record. Field-unverified unless technicians confirmed it. A teaching summary of the record, not a service manual. Export 2026-10-14.