Electrosurgery units · VIO family

ERBE VIO 3: troubleshooting and error codes

The ServiceForge knowledge base holds 14 documented symptoms for the ERBE VIO 3, with 51 ranked causes, 0 diagnostic checks with test points and expected values, and 216 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

N/N-A error displayed patient safety

Error code N or N-A shown on display, detecting module NM (NESSY return electrode monitoring)

Ranked causes

1. N1: CRC check alarm (unknown)
2. N2: ErrorHandler Buffer Overflow (unknown)
3. N5-8: Unspecified error (unknown)
4. N10-14: Unspecified error (unknown)
5. N17-36: Unspecified error (unknown)
6. N38: Faulty circuit, solid state relay not connected or defect (unknown)
7. N40: Faulty port pins to EEPROM, I2C short circuit (unknown)
8. N42-57: Unspecified error (unknown)
9. N70-74: Unspecified error (unknown)
10. N80-82: Unspecified error (unknown)
11. N128-134: Advisory message (unknown)
12. N144: Activation signal not within 100 ms (unknown)
13. N145: Second signal not within 1000 ms (unknown)
14. N146: Microcontroller temperature rather low (unknown)
15. N147: Microcontroller temperature rather high (unknown)
16. N247-255: Advisory message (unknown)

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

P/P-A error displayed caution

Error code P or P-A shown on display, detecting module PSU (power supply unit)

Ranked causes

1. P1: CRC check alarm (unknown)
2. P2: ErrorHandler Buffer Overflow (unknown)
3. P5-8: Unspecified error (unknown)
4. P21-28: Unspecified error (unknown)
5. P34: Second signal absent >1.3 seconds, faulty software, timeout (unknown)
6. P35: Timeout in status self-check or activation/deactivation, faulty software (unknown)
7. P39: 12 V controller (network) voltage less than 8.5 V (unknown)
8. P40: 12 V PFC MOSFET driver voltage less than 8.5 V (unknown)
9. P51: ADC interrupt renewal before service routine completion, ISR runtime too long (unknown)
10. P127: ECB command does not match assembly state specifications (unknown)
11. P128-134: Advisory message (unknown)
12. P246-255: CAN error in physical layer, CAN STATUS (unknown)

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

S/S-A error displayed caution

Error code S or S-A shown on display, detecting module SCM (system control module)

Ranked causes

1. S1: Checksum calculation application check alarm, faulty software (unknown)
2. S3: Checksum calculation mode list alarm, faulty software (unknown)
3. S4: Checksum calculation version list alarm, faulty software (unknown)
4. S10: Mainboard 12 V voltage not within ±10% (unknown)
5. S11: Mainboard 5 V voltage not within ±10% (unknown)
6. S63-74: Unspecified error (unknown)
7. S78-84: Unspecified error (unknown)
8. S88-94: Unspecified error (unknown)
9. S128: SCM start triggered by watchdog reset (unknown)
10. S148: Main fan rotational speed insufficient (occasional)
11. S159: Invalid instrument parameters, UI rejection (occasional)
12. S-A 18: Maximum average power output reached, heat management (occasional)

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

N-A 190: Return electrode symmetry warning patient safety

NESSY detects marginal symmetry of return electrode positioning

Ranked causes

1. Return electrode alignment suboptimal (occasional)

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

N-A 191: Return electrode current density warning patient safety

NESSY warns of elevated current density under return electrode, risking thermal injury

Ranked causes

1. Return electrode current density elevated (occasional)

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

N-A 192: NESSY HF current exceeds 300 mA patient safety

NESSY detects high-frequency current exceeding 300 mA threshold (standard or neonatal mode)

Ranked causes

1. HF current exceeds safe limit, elevated temperature risk at electrode (occasional)

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

N-A 48: No return electrode type defined patient safety

NESSY error - return electrode type not selected in system

Ranked causes

1. Return electrode type not configured (common)

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

N-A 49: No return electrode contact detected patient safety

NESSY return electrode monitoring has not detected any skin contact

Ranked causes

1. Return electrode not making skin contact (common)

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

N-A 50: Non-split return electrode connected patient safety

NESSY system detects wrong type of return electrode (non-split when split expected or vice versa)

Ranked causes

1. Wrong return electrode type installed (common)

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

N-A 51: Return electrode skin contact insufficient patient safety

NESSY detects inadequate return electrode contact with patient skin (R_NE exceeds dynamic limit)

Ranked causes

1. Insufficient return electrode skin contact (common)

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

N-A 52: Return electrode symmetry error patient safety

NESSY detects misalignment or poor distribution of return electrode on patient

Ranked causes

1. Return electrode not properly aligned or positioned (common)

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

N-A 53: Short circuit at split return electrode patient safety

NESSY detects electrical short circuit in split-type return electrode

Ranked causes

1. Return electrode internal short circuit or damage (occasional)

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

N-A 54: Resistance at non-split return electrode patient safety

NESSY detects abnormal resistance in non-split return electrode

Ranked causes

1. Return electrode contact resistance abnormal (occasional)

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

N-A 55: Split return electrode connected when non-split expected patient safety

NESSY detects mismatch between configured and physically connected return electrode type

Ranked causes

1. Wrong return electrode type connected (common)

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

Error codes

Code	Meaning	Trigger	Severity
`APC-1`	CRC check triggers an alarm	CRC checksum mismatch in Gas Control Module	error
`APC-122`	EEPROM read error	Failure to read system EEPROM memory	error
`APC-123`	EEPROM write error	Failure to write to system EEPROM memory	error
`APC 128-134`	Internal error	Various internal faults in GCM	warning
`APC-128 to APC-134`	Advisory message	Advisory condition in GCM	warning
`APC-150`	Internal unit temperature exceeds 80°C	Temperature sensor in unit housing reads >80°C	warning
`APC-151`	Controller temperature exceeds 80°C	Temperature sensor in controller reads >80°C	warning
`APC-2`	ErrorHandler Buffer Overflow	Buffer overflow in error handling system	error
`APC 20-38`	Internal error	Various internal faults in GCM	error
`APC-20 to APC-38`	Unknown error condition	Unspecified error in Gas Control Module	warning
`APC 246-255`	Internal error	Various internal faults in GCM	warning
`APC-246 to APC-255`	Advisory message	Advisory condition in GCM	warning
`APC 40-46`	Internal error	Various internal faults in GCM	error
`APC-40 to APC-46`	Unknown error condition	Unspecified error in Gas Control Module	warning
`APC 50-59`	Internal error	Various internal faults in GCM	error
`APC-50 to APC-59`	Unknown error condition	Unspecified error in Gas Control Module	warning
`APC 5-8`	Internal error	Various internal faults in GCM	error
`APC-5 to APC-8`	Unknown error condition	Unspecified error in Gas Control Module	warning
`APC-A 10`	Input pressure exceeds 7 bar (overpressure in gas supply)	Pressure sensor reading > 7 bar (rel)	warning
`APC-A 11`	Input pressure below 3 bar with bottle pressure above 25 bar (vacuum in gas supply, gas hose not connected)	Pressure < 3 bar (rel) and bottle pressure > 25 bar (rel)	warning
`APC-A 12`	Input pressure below 3 bar with no bottle pressure sensor signal (vacuum in gas supply, sensor not connected)	Pressure < 3 bar (rel) and no bottle pressure sensor signal	warning
`APC-A-13`	Output pressure exceeds 2 bar during activation - possible instrument blockage	Gas output pressure >2 bar (rel) when unit is activated	warning
`APC-A-148`	Bottle pressure low - gas bottle nearly empty	Gas bottle pressure <25 bar (rel)	info
`APC-A 150`	No measurement signal from bottle pressure sensor (sensor not connected)	No bottle pressure sensor signal when gas supply set to gas bottle	warning
`APC-A 151`	Input pressure below 3 bar with bottle pressure above 25 bar (vacuum in gas supply, gas hose not connected)	Pressure < 3 bar (rel) and bottle pressure > 25 bar (rel)	warning
`EIP-A-128`	CRC error in irrigation pump module	CRC checksum mismatch in EIP 2 module	error
`EIP-A 130`	Pump cover opened when switched on	Pump cover detected open during unit operation	error
`EIP-A 132`	Timeout error in irrigation pump	Pump operation timeout	error
`EIP-A-136`	Uetest error	Unspecified error in EIP module test function	error
`EIP-A 136`	UeWS error in irrigation pump	UeWS protocol failure in EIP 2	error
`EIP-A-144`	No electricity or no consumer detected in pump module	EIP module detects no power supply or load	error
`EIP-A 160`	Current too high when switched on in irrigation pump	Excessive current detected during pump startup	error
`EIP-A-192`	Motor control defective - current too high during activation	Motor control circuit detects excessive current during operation	critical
`G 1`	CRC check triggers an alarm in generator	CRC check failure in UGM	error
`G-10`	D-Flash programming error	Data flash memory programming operation failed	critical
`G-11`	P-Flash programming error	Program flash memory programming operation failed	critical
`G-5`	Oscillator clock fault	Generator main clock circuit malfunction detected	critical
`G-6`	Oscillator fault	Generator oscillator circuit malfunction	critical
`G 75`	Temperature error - generator temperature too high	Generator temperature sensor reading exceeds threshold	warning
`G-A 75`	Temperature error - generator temperature too high	Generator temperature sensor reading exceeds threshold during activation	warning
`I1`	CRC check triggers an alarm on accessory socket module	CRC checksum error detected by IIM module during accessory detection	error
`I 10`	D-Flash programming error in instrument interface	Programming error during D-Flash access	error
`I 11`	P-Flash programming error in instrument interface	Programming error during P-Flash access	error
`I 39`	Undefined or impermissible connector detection or faulty socket	Undefined connector detected or socket malfunction	error
`I45-50`	IIM module error codes 45 through 50	Unspecified IIM module detection error	error
`I 45-50`	Internal error in instrument interface	Various internal faults in IIM	error
`I 5-7`	Internal error in instrument interface	Various internal faults in IIM	error
`I5-7`	IIM module error codes 5 through 7	Unspecified IIM module detection error	error
`I57-63`	IIM module error codes 57 through 63	Unspecified IIM module detection error	error
`I 57-63`	Internal error in instrument interface	Various internal faults in IIM	error
`I-A 30`	1-wire CRC incorrect	CRC error in 1-wire accessory communication	error
`I-A30`	1-wire CRC checksum error on accessory identification line	CRC mismatch during 1-wire communication with accessory module	error
`I-A31`	1-wire accessory type incorrectly detected or identified	Accessory identification data does not match expected type during 1-wire initialization	error
`I-A32`	1-wire no Erbe instrument detected on accessory line	Accessory module does not respond or not recognized as Erbe instrument via 1-wire	error
`I-A33`	Short circuit detected on instrument recognition (IK) line	IK line short-circuited during accessory initialization or operation	error
`I-A34`	Activation ID malfunction on accessory module	Accessory activation identifier is missing or invalid	error
`I-A35`	SK socket error - undefined: left/center pin present but right pin missing or vice versa	Socket contact pins not fully or correctly inserted in monopolar/bipolar socket	error
`I-A36`	SK socket error - bipolar: 2 pins detected at each plug detection (should be 1 or 3)	Pin count mismatch during monopolar socket insertion detection	error
`I-A37`	SK socket error - monopolar: 3 pins detected at bipolar socket (should be 2+1)	Pin count mismatch during bipolar socket insertion detection	error
`I-A38`	1-wire protocol version incompatible with accessory module	Accessory protocol version does not match unit protocol version	warning
`I-A40`	One or more buttons detected as pressed during accessory insertion	Button depression detected on accessory at moment of connection	error
`IES-A1`	Smoke evacuator software error - checksum mismatch	Software checksum validation fails during IES module initialization	error
`IES-A128`	CAN bus error on IES module	CAN communication failure or timeout during module operation	error
`IES-A129`	Setting parameter error on IES module	Invalid or out-of-range parameter detected during configuration or operation	error
`IES-A20`	Smoke evacuator overtemperature alarm	Internal temperature of IES module exceeds safe operating limit	warning
`IES-A21`	Smoke evacuator undertemperature alarm	Internal temperature of IES module below safe operating specification	warning
`IES-A22`	Pressure sensor error in smoke evacuator module	Pressure sensor fails self-test or communication error during initialization	error
`IES-A23`	Filter cartridge used up - end of service life reached	Operating hours or filtration capacity threshold exceeded	warning
`IES-A24`	High suction resistance indicating filter blockage	Measured airflow resistance exceeds threshold during operation	warning
`IES-A25`	Filter cartridge not detected during initialization	Filter cartridge presence detection fails at module startup or status check	error
`M1`	CRC check error on program code in MCM boot loader	Boot loader self-test detects program code checksum mismatch	error
`M100-105`	MCM error codes 100 through 105 (unspecified)	Unknown MCM fault during operation or initialization	error
`M 100-105`	Internal error in measurement module	Various internal faults in MCM	error
`M 10-14`	Internal error in measurement module	Various internal faults in MCM	error
`M10-14`	MCM error codes 10 through 14 (unspecified)	Unknown MCM fault during operation or initialization	error
`M110-112`	MCM error codes 110 through 112 (unspecified)	Unknown MCM fault during operation or initialization	error
`M 110-112`	Internal error in measurement module	Various internal faults in MCM	error
`M113`	Spark available in mode that does not permit sparks during activation	Spark detected in non-spark mode during mode activation sequence	error
`M114`	Insufficient HF sensor signal during mode activation	No AC signal from HF current or voltage sensors at expected threshold	error
`M120`	HF power exceeds power supply unit output for extended period during activation	HF output power measured greater than power supply specification during operation	error
`M121`	Power supply nominal voltage reaches maximum with no HF peak voltage generated	Supply voltage saturates while HF output remains absent during activation	error
`M131`	CAN warning - CAN error counter at level 96 (warning threshold)	CAN error counter accumulation reaches 96 during operation	warning
`M132`	CAN error during operation on MCM module	CAN communication failure detected during active unit operation	error
`M133`	MCM temperature measurement malfunction	Temperature sensor on MCM fails self-test or communication error	error
`M134`	PFC timeout - PFC signals not good for 50 ms during operation	Power Factor Correction module fails status check during power supply operation	error
`M30`	CAN timeout of activation message from SCM (120 ms threshold)	CAN bus timeout waiting for mode activation message from SCM module	error
`M31`	Unknown mode identifier - mode not recognized by MCM	Activation request received for unsupported or undefined surgical mode	error
`M32`	Timeout after self-check - no activation message received	MCM self-check completes but no activation message follows within timeout	error
`M33`	Incorrect ECB mode parameter received during activation	Invalid effect setting parameter received via CAN during mode activation	error
`M34-43`	MCM error codes 34 through 43 (unspecified)	Unknown MCM fault during operation or initialization	error
`M 34-43`	Internal error in measurement module	Various internal faults in MCM	error
`M5`	CAN initialization failure on MCM module	CAN bus failed to initialize during MCM startup sequence	error
`M 50-63`	Internal error in measurement module	Various internal faults in MCM	error
`M50-63`	MCM error codes 50 through 63 (unspecified)	Unknown MCM fault during operation or initialization	error
`M 70-88`	Internal error in measurement module	Various internal faults in MCM	error
`M70-88`	MCM error codes 70 through 88 (unspecified)	Unknown MCM fault during operation or initialization	error
`M-A1`	thermoSEAL short circuit detected; no tissue effect in BiCision mode	Short circuit detected in thermoSEAL output during BiCision activation	error
`M-A10`	Initial incision incomplete in highCUT bipolar mode	Initial incision did not complete successfully when highCUT bipolar activated	error
`M-A11`	highCUT bipolar no-load - instrument not in NaCl or poor contact	Expected saline conductivity not detected during highCUT bipolar activation	warning
`M-A2`	thermoSEAL no-load condition - insufficient tissue contact	Expected tissue resistance not detected during thermoSEAL activation	warning
`M-A 20`	Power overdose with PPS/QuickStart	Excessive power detected during PPS or QuickStart activation	warning
`M-A 30`	endoCUT Q idle state (no tissue contact for two initial incision cycles)	No tissue contact detected for duration of two initial incision cycles	warning
`N1`	CRC check alarm	Checksum verification failure in NM module	error
`N10-14`	Unspecified NM error	Various undocumented faults in NM module	error
`N128-134`	Advisory message (NM)	Various warning conditions in NM	warning
`N144`	Activation signal timing error	Activation signal not received within 100 ms window	warning
`N145`	Second signal timing error	Second signal not received within 1000 ms window	warning
`N146`	Microcontroller temperature low	Microcontroller temperature below threshold	warning
`N147`	Microcontroller temperature high	Microcontroller temperature above threshold	warning
`N17-36`	Unspecified NM error	Various undocumented faults in NM module	error
`N2`	ErrorHandler Buffer Overflow	Error handling buffer overflow in NM	error
`N247-255`	Advisory message (NM)	Various warning conditions in NM	warning
`N38`	Faulty circuit, solid state relay issue	Circuit fault or solid state relay not connected	error
`N40`	Faulty port pins to EEPROM, I2C interface error	Short circuit or communication fault at I2C interface	error
`N42-57`	Unspecified NM error	Various undocumented faults in NM module	error
`N5-8`	Unspecified NM error	Various undocumented faults in NM module	error
`N70-74`	Unspecified NM error	Various undocumented faults in NM module	error
`N80-82`	Unspecified NM error	Various undocumented faults in NM module	error
`N-A190`	Return electrode symmetry warning (NESSY)	Electrode contact distribution marginal but functional	warning
`N-A191`	Current density warning at return electrode (NESSY)	HF current density elevated under return electrode	warning
`N-A192`	High-frequency current exceeds 300 mA (NESSY)	NESSY HF current output > 300 mA threshold	warning
`N-A48`	No return electrode type defined (NESSY)	Return electrode type not selected in system setup	warning
`N-A49`	No return electrode contact detected (NESSY)	NESSY monitoring detects no skin contact	error
`N-A50`	Wrong return electrode type connected (NESSY)	Non-split electrode connected when split expected or vice versa	warning
`N-A51`	Return electrode skin contact resistance excessive (NESSY)	R_NE exceeds dynamic limit threshold	error
`N-A52`	Return electrode symmetry error (NESSY)	Electrode contact pressure or position uneven	warning
`N-A53`	Short circuit in split return electrode (NESSY)	Electrical short detected in split-type electrode	error
`N-A54`	Abnormal resistance in non-split return electrode (NESSY)	Contact resistance out of range on non-split electrode	warning
`N-A55`	Split return electrode connected (mismatch) (NESSY)	Split-type electrode detected when non-split configured	warning
`P1`	CRC check alarm (PSU)	Checksum verification failure in power supply unit	error
`P127`	ECB command state mismatch (PSU)	ECB process command does not match assembly state	error
`P128-134`	Advisory message (PSU)	Various warning conditions in PSU	warning
`P2`	ErrorHandler Buffer Overflow (PSU)	Error handling buffer overflow in PSU	error
`P21-28`	Unspecified PSU error	Various undocumented faults in PSU	error
`P246-255`	CAN physical layer error (PSU)	CAN bus communication fault	warning
`P34`	Second signal timeout (PSU)	Second signal absent for >1.3 seconds	error
`P35`	Timeout in status/activation (PSU)	Self-check or activation/deactivation timeout	error
`P39`	Controller 12 V supply low (PSU)	Network controller 12 V < 8.5 V	error
`P40`	PFC MOSFET driver 12 V low (PSU)	PFC power factor correction driver 12 V < 8.5 V	error
`P51`	ADC interrupt service routine overrun (PSU)	New ADC interrupt before previous routine termination	error
`P5-8`	Unspecified PSU error	Various undocumented faults in PSU	error
`P-A`	Not available	No P-A error codes documented	unknown
`S1`	Application checksum error (SCM)	Application checksum calculation fails	error
`S10`	Mainboard 12 V supply out of tolerance (SCM)	12 V supply not within ±10% (10.8–13.2 V)	error
`S11`	Mainboard 5 V supply out of tolerance (SCM)	5 V supply not within ±10% (4.5–5.5 V)	error
`S128`	Watchdog reset detected (SCM)	SCM restart initiated by watchdog timer	error
`S148`	Main fan speed insufficient (SCM)	Main cooling fan RPM below minimum threshold	warning
`S159`	Invalid instrument parameters (SCM)	UI rejects received instrument parameter values	warning
`S3`	Mode list checksum error (SCM)	Mode list checksum calculation fails	error
`S4`	Version list checksum error (SCM)	Version list checksum calculation fails	error
`S63-74`	Unspecified SCM error	Various undocumented faults in SCM	error
`S78-84`	Unspecified SCM error	Various undocumented faults in SCM	error
`S88-94`	Unspecified SCM error	Various undocumented faults in SCM	error
`S-A 129`	Heat management: High average power output reached	Unit achieves high sustained power output	warning
`S-A 130`	Instrument plugged in is blocked or unsupported	Incompatible or blocked instrument detected during operation	error
`S-A 149`	Double footswitch activation	Two footswitches activated simultaneously	warning
`S-A 150`	Undervoltage flag set in RTC chip	Real-time clock detects low voltage condition	info
`S-A 152`	Rinsing of an APC instrument triggered	APC instrument rinsing cycle initiated	info
`S-A 154`	No footswitch assigned on activation	Activation attempted without assigned footswitch	error
`S-A 155`	No mode for activation source assigned on activation	Activation attempted without assigned mode	error
`S-A 156`	New irregular activation signal applied before previous activation ends regularly	Second activation signal arrives during ongoing activation	warning
`S-A 157`	No instrument connected on activation	Activation attempted without instrument connection	error
`S-A 163`	IOSK instrument connected to the system	IOSK instrument detected and evaluated by sterile interpreter	info
`S-A 164`	Instrument was removed or unplugged from the system	Instrument disconnected during operation or standby	info
`S-A 166`	APC 3 module is not ready for operation	APC 3 module fails initialization or loses readiness	error
`S-A18`	Maximum power output reached (heat management)	Average HF power output at or near system limit	warning
`S-A 19`	Maximum activation time reached (maximum ON time)	Activation time exceeds configured maximum	warning
`S-A 198`	EIP ready for operation	EIP module initialization complete	info
`S-A 199`	EIP disconnected	EIP module disconnection detected	info
`S-A 200`	IES ready for operation	IES module initialization complete	info
`S-A 201`	IES disconnected	IES module disconnection detected	info
`S-A 204`	One pedal ReMode footswitch ready for operation	One pedal ReMode footswitch initialization complete	info
`S-A 205`	One pedal ReMode footswitch disconnected	One pedal ReMode footswitch disconnection detected	info
`S-A 206`	Two pedal ReMode footswitch ready for operation	Two pedal ReMode footswitch initialization complete	info
`S-A 207`	Two pedal ReMode footswitch disconnected	Two pedal ReMode footswitch disconnection detected	info
`S-A 208`	One pedal IES footswitch ready for operation	One pedal IES footswitch initialization complete	info
`S-A 209`	One pedal IES footswitch disconnected	One pedal IES footswitch disconnection detected	info
`S-A 21`	Critical unit temperature has just been reached	Unit temperature reaches critical threshold	warning
`S-A 22`	Second signal detected with higher priority	Incompatible module connected to ECB during operation	error
`S-A 23`	Unsupported unit connected to the ECB	Incompatible module connected to ECB	error
`S-A 24`	Contact monitor assignment when contact detected	Contact detected on instrument during monitoring	warning
`S-A 29`	Activation attempt when two identical footswitches are plugged in	Activation attempted with duplicate footswitch configuration	error
`S-A 30`	Two identical footswitches have been detected	System detects duplicate footswitch types on startup or during operation	error
`S-A 31`	A modified module configuration was detected	Internal module configuration change detected	warning
`S-A 32`	Modified socket configuration detected	Socket configuration change detected (replacement, retrofitting, or detection defect)	warning
`S-A 40`	Two pedal footswitch pedal pressed during first query	Two pedal footswitch reports pressed state during initial query cycle	warning
`S-A 41`	One pedal footswitch pedal pressed during first query	One pedal footswitch reports pressed state during initial query cycle	warning
`U 1`	DCB communication timeout	Data/Device Control Block fails to receive message from SCM during activation	error
`U 48`	Display brightness could not be set	Display brightness adjustment command fails	warning
`U 49`	Volume could not be set	Volume adjustment command fails	warning
`U-A 132`	Program memory full	Attempts to store additional programs exceed available memory	warning
`U-A 133`	Remote control detected	Remote control module detected during initialization	info
`U-A 134`	Remote control disconnected	Remote control module disconnection detected	info
`U-A 135`	Modification not possible	System rejects requested modification	info
`U-A 136`	Data transfer active	System is actively transferring data	info
`U-A 137`	The technical safety check is due	System detects that scheduled safety check interval has elapsed	warning
`U-A 138`	Assign activation type	System requires activation type assignment for operation	warning
`U-A 7`	Line voltage too low	Input mains voltage below acceptable range	error
`W 128–130`	Operating system warning	System error condition	warning
`W 140`	Error during setting of system time	System time configuration failure	warning
`W 17-24`	Write/read error partition	Memory read or write operation fails on partition	error
`W 1-8`	Checksum partition error	Memory partition checksum validation fails	error
`W 28-30`	Memory error	General memory subsystem error detected	error
`W 32`	Update error	Firmware or software update fails	error
`W 33`	Update procedure in progress	System is executing firmware or software update	info
`W 36`	No more RAM available	Available RAM exhausted	error
`W 37`	RAM error	RAM hardware malfunction detected	error
`W 40`	CPU module overheating	CPU temperature exceeds safe operating threshold	critical
`W 41`	Faulty CPU module voltage regulator	Voltage regulator output out of specification	error
`W 44`	Container error	Software container integrity check fails	error
`W 48-49`	Memory or software error	Memory system or software failure	error
`W 52-53`	Memory or software error	Memory system or software failure	error
`W 56`	Unexpected OP system behavior	System malfunction	warning
`W 9-16`	No memory partition found	Memory partition not accessible or missing	error
`W-A 128`	The connection to the system has been interrupted	Loss of system connection	warning
`W-A 129`	The connection to the system has been re-established	System connection restored	info

Likely causes and actions for each code 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.