ESIE17-19C
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Part 2. Troubleshooting
2.2. Error based troubleshooting
19/08/19
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Version 1.1
Page 25
Optimized Heating 4
2.2.2.2. “E3-00” – Discharge pressure abnormality (units with no pressure sensor)
More info:
2.2.2.3. “E5-00” – Compressor motor lock or overheated
Trigger
Effect
Reset
High pressure switch opens due to meas-
ure pressure > 41.7 bar.
Unit will stop operating.
Manual reset via user interface.
High pressure control (measure pressure
> 38 bar) occurs 16 times within 300 min-
utes.
Possible cause
Check
Corrective action
Faulty high pressure switch.
Check high pressure switch.
Replace high pressure switch.
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.
Adjust the power to the outdoor main
PCB.
Replace outdoor main PCB when HAP
LED is not blinking in regular intervals.
Faulty capacity adapter on outdoor PCB.
Check if the correct adapter is installed.
Check if the correct spare part is installed.
Adjust capacity adapter when required.
Refrigerant overcharge.
Check for refrigerant overcharge. Refer to
the nameplate for the correct charge.
Charge the correct refrigerant amount
when required.
Humidity in refrigerant (ice formation in
expansion valve).
Check for humidity in the refrigerant.
In case of suspicion of humidity, recover,
vacuum and recharge with virgin refriger-
ant.
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.
Refrigerant is contaminated.
Check for non condensables in refriger-
ant.
In case of suspicion of non condensables.
Recover, vacuum and recharge refriger-
ant.
Stop valve is closed.
Check if stop valve is open.
Open stop valve when required.
Faulty outdoor fan motor.
Check the fan motor.
Check fan motor connections and wiring.
Replace fan motor when required.
Adjust wiring when required.
Check procedures
Replacing procedures
"High pressure switch" on page 58
"Replacing high pressure switch" on page 94
"Replacing main PCB" on page 95
"Replacing DC fan motor assembly" on page 87
Trigger
Effect
Reset
Compressor overload is detected.
Unit will stop operating.
Automatic reset if the unit runs for 60 sec-
onds without error.
Possible cause
Check
Corrective action
Faulty discharge pipe thermistor.
Check discharge pipe thermistor.
Replace discharge pipe thermistor when
required.
Faulty outdoor fan motor.
Check the fan motor.
Check fan motor connections and wiring.
Replace fan motor when required.
Adjust wiring when required.
