ESIE16-02K
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Part 2. Troubleshooting
2.2. Error based troubleshooting
Page 24
31/05/21
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Version 1.1
RA R32 Split & multi split M-Series
2.2.1.7. “C7-00” – Front panel open/close fault
2.2.1.8. “C9-00” – Suction air thermistor abnormality
More info:
2.2.1.9. “CH-00” – Abnormality of refrigerant leakage sensor (only for FVXM-F model)
Trigger
Effect
Reset
Shutter limit switch not activated or faulty.
Unit will stop operating when error occurs
2 times.
Power reset via outdoor unit.
Possible cause
Check
Corrective action
Foreign substance in the blow port.
Check blow port for foreign material.
Remove foreign material when required.
Faulty shutter limit switch.
Check the limit switch continuity.
Replace the limit switch when continuity is
not good.
Faulty wire harness.
Check the wire harness wiring.
Check the wire harness connection.
Reconnect wire harness when required.
Perform a power reset, if shutter valve
does not close after power reset, replace
wire harness.
Faulty shutter motor.
Check if motor operates after opening the
shutter and power reset.
Replace indoor unit main PCB when
required.
Faulty shutter sealing.
Check if shutter goes back open automat-
ically after closing.
Replace sealing material when required.
Shutter is deformed.
Check if the error is still active after clos-
ing the shutter.
Replace shutter panel when required.
Trigger
Effect
Reset
Resistance value is out of range.
T measured < -43.6°C or > 90°C.
Unit will stop operating.
Automatic reset when resistance is within
range.
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 58
Trigger
Effect
Reset
Sensor error.
Unit will stop operating.
Buzzer will beep.
See corrective action.
