Troubleshooting
Diagnostic Procedure for Check Code
82
14
Check code
Operation cause
1. Outdoor unit service valve closed
[bb]
2. Cooling bypass PMV error
Discharge temperature TD2 alarm
3. TD sensor error
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
?
Open valves fully.
Replace TD2 sensor.
Replace both the PMVs.
No
Yes
Yes
No
Are the resistance characteristics
of TD2 sensor normal
?
No
Yes
Insufficient refrigerant,
blockage, pipe breakage.
(Check miswiring of the outdoor unit according to miswiring check function.)
Set normal wiring.
Is the wiring correct
?
No
Yes
Cooling bypass PMV B error
Is the cooling bypass
PMV B normal
?
No
Yes
Summary of Contents for MM-A0160HX
Page 1: ...Service Manual Air Conditioner Multi Split Type System Modular Multi System HFCR407C A90 0130 ...
Page 2: ......
Page 133: ...134 20 Additional Literature and Contacts ...
Page 134: ...135 20 Additional Literature and Contacts ...
Page 135: ...TOSHIBA AIR CONDITIONING www toshiba aircon co uk MADE IN UK A90 0130 Revised April 2001 ...
