Is there any abnormal sound?
Is the cooling operation normal?
Is the thermostat operation normal?
Is the remote control’s LCD operation
normal?
Is the air purifying filter installed?
12. Servicing Information
Caution:
- Pb free solder has a higher melting point than standard solder; Typically the melting point is
(30 - 40°C) higher. Please use a high temperature soldering iron. In case of the soldering
temperature control,please set it to 700 ± 20°F (370 ± 10°C).
- Pb free solder will tend to splash when heated too high (about 1100° F/600°C).
12.1. Troubleshooting
1.
Rated Frequency Operation
During troubleshooting and servicing, rated compressor operating frequency must be obtained
in order to check the specification and technical data. Below are the methods used to obtain
rated compressor operating specification.
(a) Cooling
(i)Press the Auto button continuously for 5 seconds or less than 8 seconds, the air
operation at Cooling rated frequency. (“beep” will be heard at the 5th second.)
(ii)Short the service terminal (CN-S) of the outdoor printed circuit board. The operation of
conditioner is Cooling rated frequency.
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