7-3-3. Only compressor does not run.
A. Check setting temperature.
B. Check compressor and electrical parts.
●
If the unit is turned off during cooling (or heating), DO NOT restart it immediately, as this can damage it. Wait at
least three minutes before starting it again.
CAUTION
• Check compressor motor
capacitor.
• Measure resistance of
compressor motor winding.
NO
YES
YES
YES
Temperature of compressor
is abnormally high.
Refrigerant gas shortage.
Charge refrigerant gas (R22).
Rotor may be locked up.
• Measure power supply
voltage.
The voltage is too low.
No
Internal protector is working.
NO
Is room temperature too low ?
Try to lower setting temperature by
thermostat knob COOLER.
COOL
NO
Is room temperature too high ?
Try to raise setting temperature by
thermostat knob WARMER.
HEAT
15
