Diagnostics , Technical Characteristics , Recycling; Troubleshooting; Error Code Interpretation - Pioneer Pyz012Azudcipd Owner's Manual

D
IAGNOSTICS

Troubleshooting

If the air conditioning equipment is not functioning properly, please perform the following checks to troubleshoot
the issue:
• Verify that the fuse for the air conditioning equipment or the RV's leakage circuit breaker is turned on.
If the air conditioner is powered by a generator, check whether:
• e generator's power output matches the air conditioner's requirements.
• e generator is operating correctly and producing electricity.
• e generator's voltage output is stable.
If the RV is connected to the main power supply, ensure that:
• e power line speci cations are suitable for the air conditioner's operating load.
• ere is an active power supply.
• e mains voltage meets the required speci cations (operating voltage for the air conditioner is 115V).
• Check that all air conditioner connecting wires are properly inserted and in good condition.
If the air conditioner still does not operate correctly after these checks, please contact the manufacturer for further
assistance.

Error Code Interpretation

Error Type Error Code
EE
E3
E4
E7
E0
E6
F1*
F2*
Fault
F3
F5
F6
F7
F8
F9
E9
Er
30
, T
ECHNICAL
Cause of Error
Indoor Unit
EEPROM
Indoor Coil
Temperature Sensor
Indoor Ambient
Temp Sensor
Outdoor Unit Board
and/or Drive Board
Communication
Outdoor Unit
EEPROM
Main Board and
Drive Board
communication
Abnormal
Compressor Startup
Compressor
Out of Step
IPM Module
Discharge
Temperature Sensor
Suction
Temperature Sensor
Outdoor Coil
Temperature Sensor
Outdoor Ambient
Temperature Sensor
Outdoor DC Fan
Motor
Display Board and
Main Board
Communication
Wrong Model
Selection
C
HARACTERISTICS
Error Type Error Code
Protection
Drive
*System lock if occurring 6 times within 20 min.
Switch the system off/on to clear this error code.
support@pdhvac.com | (800)-675-7410 | https://www.pdhvac.com/support/
, R
ECYCLING
Cause of Error
Outdoor Unit
P1
Current Overload
Compressor
P2
Phase Current
Outdoor Unit
P3
Over/Under-Voltage
DC Busbar
P4
Over/Under-Voltage
IPM Over
P5
Temperature
P6 Discharge Temp Overheating
Anti-Freezing Protection for Indoor
P7
Coil When Cooling
Overheating Protection for
P8
Outdoor Coil When Cooling
Overheating Protection for
P9
Indoor Coil When Heating
Outdoor Ambient Low
PC
Temperature Protection When Cooling
Outdoor Ambient High Temperature
PH
Protection When Heating
Over-Voltage
L1*
Protection of Busbar
Under-Voltage
L2*
Protection of Busbar
Over Current
L3*
Protection of Phase
L4* Abnormal Phase Current Sampling