8-3-3. Only compressor does not run.
8-3-4. Only flap motor does not run.
8-3-5. Function of outdoor fan speed control does not work properly.
• Check controller in outdoor unit.
(POW-CL128E)
• Check thermister in outdoor unit.
(TH)
Refer to 8-4 "Outdoor Fan Speed Control."
• Measure resistance of flap motor
winding.
• Check compressor motor
capacitor.
• Measure resistance of
compressor motor winding.
• Measure resistance of power
relay. (PR)
NO
YES
YES
Overload relay is working.
(Either OLR T or OLR A)
YES
Temperature of compressor
is abnormally high.
Refrigerant gas shortage. Recover refrigerant. (R407C)
Rotor may be locked up.
(C1)
• Measure Power supply
voltage.
The voltage is too low.
No
Evacuate the air conditioner.
YES
For compressor replacement
refer to "10-5. In case of
compressor malfunction".
CAUTION
In case of leakage, do not add refrigerant. The unit must be vacuumed
and recharged. This is because composition of refrigerant in the unit
has been changed due to leakage. See "10-6. In case refrigerant is leaking".
Charge refrigerant in liquid
state. (R407C)
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