Error Codes - Sanden GAU-A45HPA Service Book

8. Error Codes

When an error has occurred, a red lamp on the LED status window turns on and an error
code is displayed on the display window. The panel does not turn to the display sleep
mode while the error code is shown.
After a component is replaced or the inspection is completed, turn the breaker on/off
several times to confirm the error does not re-occur.
Below is the list of the error codes. If the corrective action does not solve the error problem,
a malfunction of the PCB valve is highly likely.
Error
Error Contents
Code
E010 HP Inlet Temperature
Thermistor Wire Break
E011 HP Inlet Temperature
Thermistor Short Circuit
E012 HP Outlet Temperature
Thermistor Wire Break
E013 HP Outlet Temperature
Thermistor Short Circuit
E014 HP Ambient
Temperature Thermistor
Wire Break
E015 HP Ambient
Temperature Thermistor
Short Circuit
E016 HP Defrost Temperature
Thermistor Wire Break
E017 HP Defrost Temperature
Thermistor Short Circuit
E018 HP Discharge
Temperature Thermistor
Wire Break
E019 HP Discharge
Temperature Thermistor
Short Circuit
E020 Tank Thermistor A Wire
Break
E021 Tank Thermistor A Short
Circuit
Error Detection Condition &
Diagnostic
When -30degC or less is detected
Refer to Thermistor diagnostic
When -30degC or less is detected
Refer to Thermistor diagnostic
When -30degC or less is detected
Refer to Thermistor diagnostic
When -30degC or less is detected
Refer to Thermistor diagnostic
When -30degC or less is detected
Refer to Thermistor diagnostic
When 100degC or more is
detected
Refer to Thermistor diagnostic
When 150degC or more is
detected
Refer to Thermistor diagnostic
When 150degC or more is
detected
Refer to Thermistor diagnostic
When 100degC or more is
detected
Refer to Thermistor diagnostic
When 100degC or more is
detected
Refer to Thermistor diagnostic
When -30degC or less is detected
Refer to Thermistor diagnostic
When -30degC or less is detected
Refer to Thermistor diagnostic
Sanden Heat Pump –– Service Technical Book
Page 25 of 48
Check Points
Connector
Judgment & Repair Methods
No. or Connector
Maintenance Colour
Monitor No.
CN4 White - Resistance: (See Table-1 in p.g.12)
- Resistance: (See Table-1 in p.g.12)
- Resistance: (See Table-1 in p.g.12)
- Resistance: (See Table-1 in p.g.12)
- Resistance: (See Table-2 in p.g.12)
- Resistance: (See Table-2 in p.g.12)
- Resistance: (See Table-4 in p.g.12)
- Resistance: (See Table-4 in p.g.12)
- Resistance: (See Table-3 in p.g.12)
- Resistance: (See Table-3 in p.g.12)
CN5 White - Resistance: (See Table-5 in p.g.12)
CN5 White - Resistance: (See Table-5 in p.g.12)