Daikin FTX25JVEA9 Service Manual page 295

Troubleshooting - Outdoor Unit Related
3.3.20 Rise in BOX Temperature
L3
Outdoor Unit
Indication
Method of Detection of abnormal rise in BOX temperature is carried out by the temperature detected by
thermistor.
Malfunction
Detection
Malfunction When the detected BOX temperature came to 85°C or higher
Decision
"
Conditions
"
Supposed
"
Causes
"
Troubleshooting
Check No.1
Refer to P.300
282
When an abnormal rise in BOX temperature is generated 4 times, the system shuts down.
(The 4-time counter resets itself when no outdoor unit abnormality occurs within cumulative
60-minute after the abnormal temperature rise generation.)
Incorrect installation
Abnormally high ambient temperature of electrical parts
Outside causes other than noise, etc.
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Start
Is
the abnormal
rise re-generated when
turning the power supply
on again to
restart?
YES
Check No. 1
Installation conditions check
NO
Si18-201
Use as it is. (Could be
temporary causes including
noise, etc.)
Apply required remedy
subject to the case.
(MF039)
Service Diagnosis