ESIE16-02B
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Part 2. Troubleshooting
2.2. Error based troubleshooting
Page 24
4/04/17
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Version 1.1
RA R32 Split & multi split M-Series
More info:
2.2.1.8. “UH-00” – Anti-icing function in other room(s)
Possible cause
Check
Corrective action
Faulty suction air thermistor.
Check suction air thermistor.
Replace suction air thermistor when
required.
Faulty indoor PCB.
Check if error still occurs after turning off
power and turning it back on again.
Check if the indoor PCB receives power.
Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Check the wiring to indoor PCB.
Adjust power to the indoor PCB.
Replace indoor PCB when HAP LED is
not blinking in regular intervals.
Install correct spare part or update indoor
PCB.
Adjust wiring to indoor PCB when
required.
Check procedures
Replacing procedures
"Refrigerant thermistors" on page 56
Trigger
Effect
Reset
A wrong connection is detected by check-
ing the combination of the indoor and out-
door unit on the CPU
Operation halt due to freeze up prevention
in other room/unspecified internal or
externa voltages/mismatch indoor and
outdoor units
Auto reset after freeze up prevention is
finished. Unit cannot restart before mis-
match is removed.
Possible cause
Check
Corrective action
Freeze up prevention in other room.
Indoor fan is not operating while the error
is displayed.
See error A5.
Mismatch of outdoor-indoor units.
Verify connection on combination data-
base.
Replace indoor units when required.
Unspecified voltages.
Check supply voltage.
Adjust when required.
