12 Troubleshooting
SMGB0070 rev. 1 - 08/2011
373
12
Alarm code
42
Heating overload (high pressure switch will be activate) (RAS-(3-10)H(V)RNME-AF)
• The RUN LED flickers and “ALARM” is displayed on the remote control switch.
•
The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit
number and the alarm code are displayed on the display of the outdoor unit PCB.
-
This alarm code is indicated when the protection device is activated at following condition. Indoor unit liquid refri-
gerant (piping) temperature higher than 55 ºC and top of compressor temperature higher than 95 ºC.
No
Faulty PCB1
Yes
Is CMC ON?
Is the
voltage bet-
ween PCN9#1 and #3
220V/240V?
Is protection
device
activated?
No
No
Is CMC ON
more than
3 seconds?
Yes
Faulty PCB1
Yes
Check the temperature of the following places with the remote control
switch in checking mode.
Check the temperature of [1]
compressor top temperature and [2] indoor
unit liquid refrigerant (piping) temperature. Examine the cause and address
the problem if the measurements surpass the preset temperature.
1
Compressor top temperature: 95ºC or less
2
Indoor unit liquid refrigerant (piping) temperature: 55ºC or less
No
Yes
Содержание RWM-(H)FSN3E
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Страница 117: ...4 Electrical wiring SMGB0070 rev 1 08 2011 107 4 RWM 8 0 10 FSN3E ...
Страница 118: ...4 Electrical wiring SMGB0070 rev 1 08 2011 108 4 5 2 Electrical wiring diagram for outdoor unit RAS 2HVRN2 ...
Страница 120: ...4 Electrical wiring SMGB0070 rev 1 08 2011 110 RAS 4 6 HVRNME AF ...
Страница 121: ...4 Electrical wiring SMGB0070 rev 1 08 2011 111 4 RAS 4 6 HRNME AF ...
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Страница 251: ...10 Spare parts SMGB0070 rev 1 08 2011 241 10 Electrical parts Spare Parts Document EPN 201005 ...
Страница 254: ...10 Spare parts SMGB0070 rev 1 08 2011 244 Electrical parts Spare Parts Document EPN 201005 ...
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