E6-00" - Compressor Motor Lock - Daikin FTXTA30AW Service Manual

ESIE17-19C | Part 2. Troubleshooting
Possible cause
Faulty overload protection.
Faulty expansion valve.
Faulty 4-way valve.
Faulty outdoor unit main PCB.
Faulty power module = faulty outdoor
inverter PCB.
Refrigerant shortage.
Humidity in refrigerant (ice formation in
expansion valve).
Non condensables in refrigerant.
Stop valve is closed.
More info:
Check procedures
"Refrigerant thermistors" on page 60
"Fan motor" on page 55
"Electronic expansion valve" on page 53
"4-way valve" on page 49
"Main PCB" on page 56
2.2.2.4. "E6-00" – Compressor motor lock
Trigger
The motor rotor does not rotate when the
compressor is energized.
Possible cause
Faulty discharge thermistor.
Refrigerant shortage.
Humidity in refrigerant (ice formation in
expansion valve).
Page 26
Optimized Heating 4
Check
Check the overload protection.
Check the overload protection connec-
tions and wiring.
Check the expansion valve.
Check the 4-way valve.
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 for refrigerant shortage. Refer to
the nameplate for the correct charge.
Check for humidity in the refrigerant.
Check for non condensables in refriger-
ant.
Check stop valve.
Replacing procedures
"Replacing DC fan motor assembly" on page 87
"Replacing expansion valve body" on page 89
"Replacing expansion valve motor" on page 91
"Replacing 4-way valve coil" on page 83
"Replacing 4-way valve body" on page 81
"Replacing main PCB" on page 95
Effect
Unit will not stop operating.
Unit will stop operating.
Check
Check the discharge thermistor.
Check for refrigerant shortage. Refer to
the nameplate for the correct charge.
Check for humidity in the refrigerant.
2.2. Error based troubleshooting
Corrective action
Replace the overload protection when
required.
Adjust wiring when required.
Replace the expansion valve body or
motor when required.
Replace the 4-way valve coil or body
when required.
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.
Charge the correct refrigerant amount
when required.
In case of suspicion of humidity, recover,
vacuum and recharge with virgin refriger-
ant.
In case of suspicion of non condensables,
recover, vacuum and recharge with virgin
refrigerant.
Open stop valve when required.
Reset
Automatic reset after a continuous run for
about 10 min.
Manual reset via user interface.
Corrective action
Replace discharge thermistor when
required.
Charge the correct refrigerant amount
when required.
In case of suspicion of humidity, recover,
vacuum and recharge with virgin refriger-
ant.
19/08/19 | Version 1.1