E7-00" - Fan Motor Abnormality - Daikin FTXJ-M Service Manual

ESIE16-02K | Part 2. Troubleshooting
Possible cause
Non condensables in refrigerant.
Stop valve is closed.
Refrigerant circuit is clogged (HP - LP >
0,26 MPa).
Faulty compressor.
Compressor turned off too fast.
Faulty outdoor unit main PCB.
Faulty outdoor inverter PCB.
Faulty 4-way valve.
Faulty expansion valve.
2.2.2.5. "E7-00" – Fan motor abnormality
Trigger
Fan does not start in about 15~30 sec-
onds = fan motor lock.
It can occur that E7-00 error is triggered
even when the fan motor is running
caused by a faulty hall signal.
Possible cause
Faulty outdoor fan motor.
Faulty outdoor inverter PCB.
Blown fuse.
Page 28
RA R32 Split & multi split M-Series
Check
Check for non condensables in refriger-
ant.
Check stop valve.
Check for possible blockage (blockages
can be checked by measuring the refriger-
ant/pipe temperature. Sudden drop in
temperature could indicate a blockage
(remark: this is not valid for the expansion
valve)).
Check compressor.
Check connections and wiring of the com-
pressor.
Check expansion valve (liquid back
issue).
Check the refrigerant charge. Refer to the
nameplate for correct charge.
Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Check if the outdoor main PCB receives
power.
Check outdoor inverter PCB.
Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Check the 4-way valve.
Check the expansion valve.
Effect
Unit will not stop operating.
Unit will stop operating.
Check
Check the fan motor.
Check fan motor connections and wiring.
Check outdoor inverter PCB.
Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Check the fuse on the outdoor unit PCB's.
2.2. Error based troubleshooting
Corrective action
In case of suspicion of non condensables,
recover, vacuum and recharge with virgin
refrigerant.
Open stop valve when required.
Replace the blocked part.
Replace compressor when required.
Investigate reason of breakdown.
Replace expansion valve when required.
Fix possible leak.
Wait for guard timer.
Restore the power to the outdoor main
PCB.
Replace outdoor main PCB when HAP
LED is not blinking in regular intervals.
Restore the power to the outdoor inverter
PCB.
Replace the outdoor inverter PCB when
required.
Replace the 4-way valve coil or body
when required.
Replace the expansion valve body or
motor when required.
Reset
Automatic reset after a continuous run.
Manual reset via user interface.
Corrective action
Replace fan motor when required.
Adjust wiring when required.
Restore the power to the outdoor inverter
PCB.
Replace the outdoor inverter PCB when
required.
Replace fuse when required.
31/05/21 | Version 1.1