Troubleshooting Sheet

17
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(6) Diagnosis of overload and discharge malfunction
Main detection points:
Is electric expansion valve well connected? Is it damaged?
Is refrigerant leaked?
Is overload wire connection normal?
Malfunction diagnosis process:
(7) Detection process of communication circuit of outdoor unit
20min after
de-energization
of complete unit
Is electric
expansion valve
well connected?
Is overload wire
reliably connected?
Replace electric
expansion valve
Remove
malfunction?
Replace parts
of outdoor
electric box
Remove malfunction?
Refrigerant leakage,
recharge the
refrigerant
Finish
Adjust
connecting wire
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