- 61 -
General Troubleshooting (continued).
Symptom Probable Cause Corrective Action
4
In Cool mode: high
pressure, or;
In Heat mode:
outdoor
coil freeze.
1. Run capacitor of outdoor
fan motor is burnt.
2. Winding of outdoor fan
motor is shorted.
1. Replace outdoor fan motor run
capacitor.
2. Replace outdoor fan motor.
5
Only indoor fan
motor and outdoor
fan motor are
working. No
cooling and/or
heating take place.
1. Overload safety device on
compressor is cut out due
to high temperature.
2. Compressor run capacitor
is burnt.
3. Compressor winding
shorted.
4. Pressure is too high.
1. Switch Off power and try again after
one hour.
2. Replace compressor run capacitor.
3. Replace compressor.
4. Check HP controller. Press RESET
button.
6
No air supply at
indoor unit
(compressor
operates).
1. Indoor fan motor is
blocked
or turns slowly.
2. Indoor fan motor capacitor
is burnt.
3. Indoor fan motor winding
is burnt.
4. In Heat mode: delayed
start for indoor fan motor.
5. Clogged air filters.
1. Check voltage. Repair wiring if
necessary. Check indoor fan wheel if
tight on motor shaft. Tighten if
necessary.
2. Replace indoor fan motor capacitor.
3. Replace indoor fan motor.
4. Normal software delay (max. 20
sec.).
5. Clean filters.
7
Low Capacity. 1. Lack of refrigerant (will be
accompanied by whistling
noise); causes ice
formation on the
evaporator coil (in Cool
mode).
2. Clogged air filters.
1. Unit must be charged (according to
the nameplate) after localizing the
gas leak.
2. Clean filters.
8
In Heat mode: only
compressor runs,
outdoor and indoor
fan motors are
stopped.
A/C operates in De-Icing
cycle.
Wait (max.) 10 min. until the A/C
resumes to normal operation.
To Next Page
Loading...
