70
Troubleshooting
(4) Diagnosis for anti-high temperature
ǃ
overload protection (AP1 below is control board of outdoor unit)
Main detection point:
Ɣ
If the outdoor ambient temperature is in normal range;
Ɣ
If the indoor and outdoor fan is running normal;
Ɣ
If the radiating environment of indoor and outdoor unit is well.
Malfunction diagnosis process:
1. Check if fan terminal
OFAN is connected well
2. Test if resistance value
of any two terminals is less
than 1k
ƻ
with ohmic meter
If the outdoor fan work
well?
After the unit de-
energized for 20min
Replace
control board
AP1
If the radiating of outdoor
and indoor unit is well?
Improve the
radiating
environment of
unit
Replace
fan motor
Finish
Y
Replace fan
capacity C1
Anti-high temperature
overload protection
Normal protection, please use
it after improve the outdoor
ambient temperature
If the outdoor ambient temperature is
higher than 53 ºC?
N
Y
N
Y
N
Содержание GWC18KG-K3DNA5A
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Страница 65: ...62 Troubleshooting 9 4 How to Check simply the main part 1 Temperature sensor malfunction...
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