Navien E001: Heat exchanger over temperature
E001 is listed as 'Heat exchanger over temperature.' for Navien Condensing Boiler. Verify the exact model and controller before acting.
Source checked 2026-05-01Error Codes
Browse published fault-code records by brand, product and displayed code.
Each record starts with the source meaning, then separates applicability, owner-safe actions, operating uncertainty and qualified-service boundaries. A matching code string alone is not enough: confirm the brand, product, model and controller before acting.
Navien E003: Ignition failure
E003 is listed as 'Ignition failure.' for Navien Condensing Boiler. Verify the exact model and controller before acting.
Source checked 2026-05-01Navien E004: False flame detection
E004 is listed as 'False flame detection.' for Navien Condensing Boiler. Verify the exact model and controller before acting.
Source checked 2026-05-01Pfeiffer Vacuum Err041: Drive fault
Err041 is listed as 'Drive fault.' for Pfeiffer Vacuum Turbopump. Verify the exact model and controller before acting.
Source checked 2026-05-01Pfeiffer Vacuum Err043: Internal configuration error
Err043 is listed as 'Internal configuration error.' for Pfeiffer Vacuum Turbopump. Verify the exact model and controller before acting.
Source checked 2026-05-01Pfeiffer Vacuum Err044: Excess temperature, electronics
Err044 is listed as 'Excess temperature, electronics.' for Pfeiffer Vacuum Turbopump. Verify the exact model and controller before acting.
Source checked 2026-05-01Pfeiffer Vacuum Err045: Excess temperature, motor or pump lower part
Err045 is listed as 'Excess temperature, motor or pump lower part.' for Pfeiffer Vacuum Turbopump. Verify the exact model and controller before acting.
Source checked 2026-05-01Pfeiffer Vacuum Err046: Internal initialization error
Err046 is listed as 'Internal initialization error.' for Pfeiffer Vacuum Turbopump. Verify the exact model and controller before acting.
Source checked 2026-05-01Pfeiffer Vacuum Err098: Internal communication error
Err098 is listed as 'Internal communication error.' for Pfeiffer Vacuum Turbopump. Verify the exact model and controller before acting.
Source checked 2026-05-01Pfeiffer Vacuum Err621: Electronic drive unit does not detect the turbopump
Err621 is listed as 'Electronic drive unit does not detect the turbopump.' for Pfeiffer Vacuum Turbopump. Verify the exact model and controller before acting.
Source checked 2026-05-01Seakeeper Code 78: Brake valve fault
Code 78 is listed as 'Brake valve fault.' for Seakeeper Marine Gyro Stabilizer. Verify the exact model and controller before acting.
Source checked 2026-05-01Seakeeper Code 79: Valve 3 fault
Code 79 is listed as 'Valve 3 fault.' for Seakeeper Marine Gyro Stabilizer. Verify the exact model and controller before acting.
Source checked 2026-05-01Seakeeper Code 80: Valve 4 fault
Code 80 is listed as 'Valve 4 fault.' for Seakeeper Marine Gyro Stabilizer. Verify the exact model and controller before acting.
Source checked 2026-05-01Seakeeper Code 85: Drive software fault
Code 85 is listed as 'Drive software fault.' for Seakeeper Marine Gyro Stabilizer. Verify the exact model and controller before acting.
Source checked 2026-05-01Seakeeper Code 86: Drive memory fault
Code 86 is listed as 'Drive memory fault.' for Seakeeper Marine Gyro Stabilizer. Verify the exact model and controller before acting.
Source checked 2026-05-01Seakeeper Code 87: Drive configuration incorrect
Code 87 is listed as 'Drive configuration incorrect.' for Seakeeper Marine Gyro Stabilizer. Verify the exact model and controller before acting.
Source checked 2026-05-01Seakeeper Code 88: Drive wiring fault
Code 88 is listed as 'Drive wiring fault.' for Seakeeper Marine Gyro Stabilizer. Verify the exact model and controller before acting.
Source checked 2026-05-01Seakeeper Code 89: Drive motor control fault
Code 89 is listed as 'Drive motor control fault.' for Seakeeper Marine Gyro Stabilizer. Verify the exact model and controller before acting.
Source checked 2026-05-01Seakeeper Code 90: Motor fault
Code 90 is listed as 'Motor fault.' for Seakeeper Marine Gyro Stabilizer. Verify the exact model and controller before acting.
Source checked 2026-05-01Seakeeper Code 91: Drive hardware incompatible
Code 91 is listed as 'Drive hardware incompatible.' for Seakeeper Marine Gyro Stabilizer. Verify the exact model and controller before acting.
Source checked 2026-05-01Seakeeper Code 92: Drive MOSFET fault
Code 92 is listed as 'Drive MOSFET fault.' for Seakeeper Marine Gyro Stabilizer. Verify the exact model and controller before acting.
Source checked 2026-05-01Seakeeper Code 93: Drive IGBT fault
Code 93 is listed as 'Drive IGBT fault.' for Seakeeper Marine Gyro Stabilizer. Verify the exact model and controller before acting.
Source checked 2026-05-01Seakeeper Fault 554: GPS and NMEA fault
Fault 554 is listed as 'GPS and NMEA fault.' for Seakeeper Marine Gyro Stabilizer. Verify the exact model and controller before acting.
Source checked 2026-05-01Seakeeper Fault 555: Loss of GPS fix
Fault 555 is listed as 'Loss of GPS fix.' for Seakeeper Marine Gyro Stabilizer. Verify the exact model and controller before acting.
Source checked 2026-05-01