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Outdoor LED
Check code
indication
[H04]
<Indication 1> <Indication 2>
<Model A>
<Model B>
[L10]
<Indication 1> <Indication 2>
<Model A>
<Model B>
(No specific description indicates outdoor unit parts.)
[Case thermostat operation]
CN609 connector and case
thermostat is normal.
If case thermostat is short circuited,
cooling and heating can operate.
No gas leakage.
Enough Refrigerant.
Service valve is fully opened.
Pulse motor valve is normal.
Check for piping collapse and break.
If defective, repair or replace it.
[Model not set] Only when service board is used
Cut jumper line by following the instruction
comes with the service board package
115
Check and Action procedure
PC board
<Model A>
P805HR-E,
P1105HR-E
(MCC-1571)
<Model B>
Check CDB PC board.
(MCC-1675)
Failure → Replace
* When replacing CDB
PC board, replace the fuse.
Correct connector
Replace case thermostat
Check outdoor board
If defective, replace it
Correct defective portion
Re-charge refrigerant
Open fully service valve
Correct defective portion
Replace defective parts
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