E7-00" - Fan Motor Abnormality - Daikin FTXTA30AW Service Manual

ESIE17-19C | 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.
More info:
Check procedures
"Refrigerant thermistors" on page 60
"Compressor" on page 51
"Electronic expansion valve" on page 53
"Main PCB" on page 56
"4-way valve" on page 49
"Electronic expansion valve" on page 53
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.
19/08/19 | Version 1.1
Optimized Heating 4
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.
Replacing procedures
"Replacing compressor" on page 84
"Replacing expansion valve body" on page 89
"Replacing main PCB" on page 95
"Replacing 4-way valve coil" on page 83
"Replacing 4-way valve body" on page 81
"Replacing expansion valve body" on page 89
"Replacing expansion valve motor" on page 91
Effect
Unit will not stop operating.
Unit will stop operating.
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.
Page 27