SiENBE04-512A Troubleshooting
Service Diagnosis 121
4.17 Electrical Box Temperature Rise
Remote Control
Display
L3
Method of
Malfunction
Detection
An electrical box temperature rise is detected by checking the radiation fin thermistor with the
compressor off.
Malfunction
Decision
Conditions
With the compressor off, the radiation fin temperature is above 80°C(90°C). Reset is made
when the temperature drops below 70°C(80°C).
: value for (A)RK(X)H, R(Y)N models
Supposed
Causes
Fin temperature rise due to defective outdoor unit fan
Fin temperature rise due to short-circuit
Fin thermistor defective
Connector in poor contact
Outdoor unit PCB defective
SiENBE04-512A.book Page 121 Friday, October 5, 2007 1:49 PM
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