E5-00 - Outdoor Unit: Overheat Of Inverter Compressor Motor - Daikin altherma 3 M Service Manual

2 | Troubleshooting
2.3.29 E5-00 – Outdoor unit: Overheat of inverter compressor motor
Service manual
32
8 Clean the outdoor heat exchanger. See "5 Maintenance" [
Possible cause: Dirty outdoor heat exchanger.
9 Perform a check of the main PCB. See
Possible cause: Faulty main PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Compressor overload is
detected.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check that all stop valves of the refrigerant circuit are open. See
"4.2 Refrigerant circuit" [
Possible cause: Closed stop valve in the refrigerant circuit.
2 Perform a check
"3.20 Thermistors" [
Possible cause: Faulty discharge pipe thermistor or connector fault.
3 Perform a check of the outdoor unit fan motor. See
4
motor" [ 217].
Possible cause: Faulty outdoor unit fan motor.
4 Perform a check of the compressor. See "3.7 Compressor" [
Possible cause: Faulty compressor or miswiring of the compressor power
supply cable.
5 Perform a check of all expansion valves. See
Possible cause: Faulty expansion valve.
6 Perform a check of the 4‑way valve. See
Possible cause: Faulty 4‑way valve.
7 Perform a check of the main PCB. See
Possible cause: Faulty main PCB.
8 Check if the refrigerant circuit is correctly charged. See
4
circuit" [ 286].
Possible cause: Refrigerant shortage.
9 Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See
Possible cause: Non‑condensables and/or humidity in the refrigerant circuit.
10 Check if the refrigerant circuit is clogged. See
"3.14 Main
Effect
Unit will NOT stop
operating.
4
286].
of the discharge
4
248].
"3.2 4-way
"3.14 Main
"4.2 Refrigerant circuit" [
4
309].
4
PCB" [ 171].
Reset
Automatic reset if the unit
runs without warning for
60 seconds.
pipe thermistor.
"3.16 Outdoor unit fan
4
134].
4
"3.9 Expansion valve" [
4
valve" [ 96].
4
PCB" [ 171].
"4.2 Refrigerant
4
286].
"4.2 Refrigerant circuit" [
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
See
149].
4
286].