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8-3-3. Only compressor does not run.
• Check compressor motor
capacitor.
• Measure resistance of
compressor motor winding.
• Measure Power supply
voltage.
The voltage is too low.
• Measure resistance of power
relay.
CAUTION
8-3-4. Only flap motor does not run.
• Measure resistance of flap motor
winding.
8-3-5. Function of outdoor fan speed control does not work properly.
• Check controller in outdoor unit.
Refer to 8-4 "Outdoor Fan Speed Control."
(C1)
Temperature of compressor
is abnormally high.
No
For compressor replacement
refer to "10-5. In case of
(PR)
compressor malfunction".
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".
(POW-CL128E)
Overload relay is working.
(Either OLR T or OLR A)
YES
YES
Refrigerant gas shortage.
NO
Rotor may be locked up.
YES
• Check thermister in outdoor unit.
39
YES
Recover refrigerant. (R407C)
Evacuate the air conditioner.
Charge refrigerant in liquid
state.
(TH)
(R407C)
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