Sanden GAU?A45HPA, Сервисная книжка, Страница: 26 / 48

Sanden Heat Pump –– Service Technical Book
Page 26 of 48
Check Points
Error
Code
Error Contents
Error Detection Condition &
Diagnostic Connector
No. or
Maintenance
Monitor No.
Connector
Colour
Judgment & Repair Methods
E040 When 80degC or more is
detected:
㩷 㩷 㩷
㩷
<Check Items>
㩷 㩷 㩷
㩷
- Check dust being stuck on HP
connector filter
㩷 㩷
- Remove dust if any
㩷
- Bends or blockings on HP
connection pipes
㩷 㩷
-Correct piping and remove bends
and blockings
㩷
- freeze on pipes
㩷 㩷
- Melt the freeze if any and apply
insulation
㩷 - Water valve is closed 㩷 㩷 - Open water valve
㩷 - Stopper valve is closed 㩷 㩷 - Open stopper valve
㩷 - confirm tank is filled 㩷 㩷 - fill tank with water if it is not
㩷
HP Water Outlet Over
Temperature 1
- Water circulation pump
malfunction 㩷 㩷 - If Water circulation pump do not
start operating even after turning it on
on the timer setting panel, it is a
malfunction of the water circulation
pump.
E041 Outlet water temperature error
㩷 㩷 㩷
㩷 <Check Items> 㩷 㩷 㩷
㩷 - Check dust being stuck on HP
connector filter 㩷 㩷 - Remove dust if any
㩷
- Bends or blockings on HP
connection pipes
㩷 㩷
-Correct piping and remove bends
and blockings
㩷 - freeze on pipes 㩷 㩷 - Melt the freeze if any and apply
insulation
㩷 - Water valve is closed 㩷 㩷 - Open water valve
㩷
- Stopper valve is closed
㩷 㩷
- Open stopper valve
㩷
- confirm tank is filled
㩷 㩷
- fill tank with water if it is not
㩷
HP Water Outlet Over
Temperature 2
- Water circulation pump
malfunction
㩷 㩷
- If Water circulation pump do not
start operating even after turning it on
on the timer setting panel, it is a
malfunction of the water circulation
pump.
E042 When 55degC or less is detected 㩷 㩷 㩷
㩷
<Check Items>
㩷 㩷 㩷
㩷
HP Outlet Temperature
Thermistor Detection
Error
- Check if thermistor is fallen out
㩷 㩷
- Put thermistor back into the pocket
on pipe if it is out.
When 130degC or more is
detected 㩷 㩷 㩷
<Check Items>
㩷
㩷
- Malfunction of discharge
thermistor CN4 White - Replace discharge thermistor
E043
㩷
㩷
㩷
- Check if expansion valve
connector is fallen out or not
connected properly CN10 White - Put it back on properly if it is not in
right position
㩷
㩷
HP Discharge Over
Temperature 1
- Check resistance between 2
phases on expansion valve coil
(see table)
- Blockage in refrigerant pipes 㩷
㩷
㩷
㩷
- Abnormal: Valve coil replacement
required (together with PC board)
- Normal: Heat pump unit
replacement required
- Heat pump unit replacement
required