Service manual

Troubleshooting
Diagnostic Procedure for Check Code
83
14
Check code Operation cause
1. Outdoor unit service valve closed
2. Cooling bypass PMV error
[A6]
3. TD sensor error
Discharge temperature TD1 alarm
4. Insufficient refrigerant, blockage in pipe
5. Blockage of PMV assembly on the liquid line
Are the gas pipe and liquid
pipe service valves of the
outdoor unit fully open?
Is there a blockage
in the PMV assembly on
the liquid line?
Are the resistance characteristics
of TD1 sensor normal?
Is wiring correct?
Open valves fully.
Replace TD1 sensor.
Correct wiring.
Cooling bypass PMV B error.
Replace both the PMVs.
No
Yes
Yes
No
Is the cooling bypass
PMV B normal?
No
Yes
No
Yes
No
Yes
Insufficient refrigerant,
blockage, pipe breakage.
(Check miswiring of the outdoor unit according to miswiring check function.)