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42
Check of R.V. coil
F
After 3 minutes, is there
230V AC between CN721
1
-
3
on the deicer P.C. board?
Replace the
deicer P.C. board.
Yes
No
Replace the R.V. coil.
Disconnect the TAB52 on the deicer P.C. board.
Turn ON the power supply and operate
the indoor unit in HEAT mode by pressing
the EMERGENCY OPERATION switch.
After 3 minutes, is there
230V AC between CN721
1
-
3
on the deicer P.C. board?
Replace the
deicer P.C. board.
Yes
No
Replace the R.V. coil.
Disconnect the TAB52 on the deicer P.C. board.
Turn ON the power supply and operate
the indoor unit in COOL mode by pressing
the EMERGENCY OPERATION switch.
Unit operates COOL mode even if it is set HEAT mode.
w
First, measure the resistance of R.V. coil to confirm it is disconnected or is not short-circuit.
Unit operates HEAT mode even if it is set to COOL mode.
w
First, measure the resistance of R.V. coil to confirm it is disconnected or is not short-circuit.
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Содержание MSH-C18TV
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