Gree TERRA09HP230V1A Installation, Service & Troubleshooting page 95

PU Error Code
PU
Charging Malfunction of Capacitor
Status:
During cooling mode, compressor will stop,
indoor fan will run. Heating mode all units
stop.
Start Troubleshooting after unit
is powered on for 1 minute
Use a DC voltmeter to
measure the voltage
across the terminals of the
electrolytic capacitor
Voltage higher than 200v
No
Is the input AC voltage
between 201VAC & 250VAC?
Yes
Shut down power and wait 20
minutes or connect a DC voltmeter
to the electrolytic capacitor until the
voltage is less than 20 v
Check the connections of the
reactor (L) in wiring diagram
I reactor wiring normal?
Yes
Replace AP1 circuit board
End Troubleshooting
Error Code Diagnostics
Yes
Replace AP1 circuit
No
Correct input AC
power supply to unit
Connect wiring
No
according to the wring
diagram
1. Improper input voltage
2. Poor connection on reactor
3. Reactor damaged
4. Bad AP1 control board
board
Restart the unit,
is the malfunction
corrected?
No
Restart the unit,
is the malfunction
corrected?
No
Yes
Yes
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