Display Ee; Display Cl - Pioneer WYT Series Service Manual

10.5.9 Display EE

Reason:
EEPROM fault.
Solution: Shut down power supply and reenergize it, if the fault remains there, check the EEPROM
installation, if no problem, please replace outdoor PCB.

10.5.10 Display CL

Cause:
Air filter duty, the unit operation Cumulative time 500 hours, the controller will confirmation the filter
dirty and display CL.
Solution: Clean the air filter then cut off the power and suppl y again.
10.6 MALFUNCTION (PARTS) CHECK METHOD
10.6.1 Procedure for determining defective outdoor unit IPM/compressor
The following flow chart shows a procedure for locating the cause of a malfunction when the compressor
does not start up and a DC overcurrent indication error occurs.
Use the remote operates
the air conditioner
Compressor star up
Yes
Does indoor unit LED
display error code.
No
Normal
Clean indoor or outdoor
heat exchange
Add gas
Air Conditioner Service Manual
EEPROM
P9
Does compressor start up
Does low or high press
valve opened
Operates again after 3 Mins
Normal
Does compressor start
P0
No
Clean indoor heat exchange
and outdoor heat exchange
Not enough
Check the refrigerant
amount
Check the installation condition
Installation again
No
Does the wire
connects right
No
Yes
Open
Yes
No
Replace the
inverter PCB
Yes
Replace the compressor
Yes
Does the wire
connects right
Normal
Normal
Normal
No
Connects wire
again
Yes
Connects wire
again
Replace the inverter PCB
32