Daikin 4MXM68M User Manual

ESIE16-02B | Part 2. Troubleshooting 2.2. Error based troubleshooting
4/04/17 | Version 1.1 Page 23
RA R32 Split & multi split M-Series
2.2.1.5. “C4-00” – Liquid pipe thermistor for heat exchanger abnormality
More info:
2.2.1.6. “C7-00” – Front panel open/close fault
2.2.1.7. “C9-00” – Suction air thermistor abnormality
Trigger Effect Reset
Thermistor input is > 4.96 V or < 0.04 V
during compressor operation.
Unit will stop operating. Power reset via outdoor unit.
Possible cause Check Corrective action
Faulty liquid pipe thermistor. Check liquid pipe thermistor. Replace liquid pipe thermistor when
required.
Faulty indoor unit main 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 the power to the indoor main PCB.
Replace indoor main PCB when HAP LED
is not blinking in regular intervals.
Check procedures Replacing procedures
"Refrigerant thermistors" on page 56
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.

Daikin 4MXM68M Specifications

General

Brand	Daikin
Model	4MXM68M
Category	Air Conditioner
Language	English