Si18-201 Troubleshooting - Outdoor Unit Related
Service Diagnosis 297
3.3.32 System Malfunction
Outdoor Unit
Indication
UH
Method of
Malfunction
Detection
Case where other BP or indoor unit connected with other BP malfunctioned
This malfunction means that displayed only on indoor unit connected with normal BP.
"
Outdoor unit displays malfunction code of faulty BP.
Malfunction
Decision
Conditions
When the system shut down due to malfunction of BP of other systems.
Supposed
Causes
"
Outdoor unit is not malfunctioning.
"
Transmission error by other system's BP and outdoor unit
"
Malfunction of other system's thermistor
"
Other system's BP malfunction including faulty motorized valve of other system's BP, etc.
Troubleshooting
Check malfunction code of
outdoor unit
Diagnose faulty BP using
malfunction causes.
(MF052)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Check BP where malfunction
is generated.
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