ESIE16-02B | Part 2. Troubleshooting 2.2. Error based troubleshooting
4/04/17 | Version 1.1 Page 27
RA R32 Split & multi split M-Series
2.2.2.5. “E7-00” – Fan motor abnormality
Non condensables in refrigerant. Check for non condensables in refriger-
ant.
In case of suspicion of non condensables,
recover, vacuum and recharge with virgin
refrigerant.
Stop valve is closed. Check stop valve. Open stop valve when required.
Refrigerant circuit is clogged (HP - LP >
0,26 MPa).
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)).
Replace the blocked part.
Faulty compressor. 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.
Replace compressor when required.
Investigate reason of breakdown.
Replace expansion valve when required.
Fix possible leak.
Compressor turned off too fast. Wait for guard timer.
Faulty outdoor unit main PCB. 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.
Restore the power to the outdoor main
PCB.
Replace outdoor main PCB when HAP
LED is not blinking in regular intervals.
Faulty outdoor inverter PCB. Check outdoor inverter PCB.
Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Restore the power to the outdoor inverter
PCB.
Replace the outdoor inverter PCB when
required.
Faulty 4-way valve. Check the 4-way valve. Replace the 4-way valve coil or body
when required.
Faulty expansion valve. Check the expansion valve. Replace the expansion valve body or
motor when required.
Trigger Effect Reset
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.
Unit will not stop operating. Automatic reset after a continuous run.
Unit will stop operating. Manual reset via user interface.
Possible cause Check Corrective action
Faulty outdoor fan motor. Check the fan motor.
Check fan motor connections and wiring.
Replace fan motor when required.
Adjust wiring when required.
Faulty outdoor inverter PCB. Check outdoor inverter PCB.
Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Restore the power to the outdoor inverter
PCB.
Replace the outdoor inverter PCB when
required.
Blown fuse. Check the fuse on the outdoor unit PCB's. Replace fuse when required.
Possible cause Check Corrective action
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