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Ultrasound systems

Sonosite MicroMaxx: troubleshooting and error codes

The ServiceForge knowledge base holds 14 documented symptoms for the Sonosite MicroMaxx, with 23 ranked causes, 3 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

Print does not work

Printer output fails; images not printing

Ranked causes

  1. 1. Incorrect printer selected in system setup (common)
  2. 2. Printer connection problem (common)
  3. 3. Printer not powered on or not properly set up (common)

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

System displays assert code on startup

Main PCBA displays assert screen with bracketed code (C: field). Hardware or software fault detected. System may or may not boot.

Ranked causes

  1. 1. Software assert (recoverable fault) (common)
  2. 2. Hardware fault requiring main PCBA replacement (occasional)
  3. 3. Power system failure preventing normal shutdown (rare)
First check

Record assert code from display

Test point
C: field on assert screen
Expected
Bracketed numeric assert code displayed

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

System image quality is poor

Display shows dim, blurry, or unclear image; visual output degraded

Ranked causes

  1. 1. LCD screen viewing angle suboptimal (common)
  2. 2. Brightness setting too low or too high (common)
  3. 3. Gain setting incorrect (common)

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

DVD/VCR does not record

Recording device fails to capture or save video

Ranked causes

  1. 1. DVD/VCR connection problem (common)
  2. 2. Recording device not powered on or not properly set up (common)

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

External monitor does not work

External display device not functioning or not showing image

Ranked causes

  1. 1. Monitor connection problem (common)
  2. 2. Monitor not powered on or not properly set up (common)

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

System will not power on

Unit does not respond to power button; no indication of power

Ranked causes

  1. 1. Power connections faulty or loose (common)
  2. 2. Battery discharged or depleted (common)

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

Inaccurate fetal age calculation patient safety

Fetal age calculation does not match expected or known values

Ranked causes

  1. 1. Patient information, date, or time set incorrectly (common)

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

Maintenance icon displays on system screen caution

Maintenance indicator icon appears on display with number in parentheses on C line

Ranked causes

  1. 1. System maintenance may be required (unknown)

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

No color image displayed

Color or Doppler image not appearing on screen

Ranked causes

  1. 1. Gain or scale setting incorrect (common)

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

No CPD image displayed

Cardiac pulse doppler image not visible or not rendering on screen

Ranked causes

  1. 1. Gain setting too low (common)

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

No OB measurement selections available

Obstetric measurement tools or menu options not accessible

Ranked causes

  1. 1. OB exam type not selected (common)

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

System does not recognize transducer

Transducer not detected or recognized by the system during operation or connection attempt

Ranked causes

  1. 1. Transducer not properly connected (common)

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

Text cursor does not move when touchpad or arrows are selected

Cursor remains stationary despite pressing touchpad or arrow keys; constrained to single line

Ranked causes

  1. 1. Text cursor constrained to one line (unknown)

Unexpected labels on function keys

Function key labels are not displaying as expected or assigned labels not appearing

Ranked causes

  1. 1. Function key labels not assigned (common)

1 corrective action and part numbers 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.