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Troubleshooting
Service manual
55
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.3.51 H3-00 – Outdoor unit: Malfunction of high pressure switch
Trigger
Effect
Reset
High pressure switch is
activated when
compressor is off.
Unit will stop operating.
Manual reset via user
interface.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Perform a check of the high pressure switch. See
171].
Possible cause:
Faulty high pressure switch.
2
Perform a check of the main PCB. See
184].
Possible cause:
Faulty main PCB.
3
Check if the power supply is compliant with the regulations. See
Possible cause:
▪
Faulty or disturbance of the power supply (power supply MUST be within
range of nominal operating voltage ±4%),
▪
Power drop,
▪
Short circuit.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.3.52 H5-00 – Malfunction of compressor overload protection
Trigger
Effect
Reset
Compressor overload
protection is defective.
Unit will stop operating.
Manual reset via user
interface.
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
Possible cause:
Closed stop valve in the refrigerant circuit.
2
Check if the refrigerant circuit is clogged. See
Possible cause:
Clogged refrigerant circuit.
draft – 31/05/2022 15:53
Summary of Contents for EBLA04E V Series
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