3
|
Troubleshooting
Service manual
32
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.
3.3.20 8H-03 – Overheating water circuit (thermostat)
Trigger
Effect
Reset
Unit detects activated
aquastat.
Pump will stop running.
Automatic reset when the
circuit is closed.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Check the set trigger temperature of the safety thermostat. See
Possible cause:
Faulty trigger temperature setting of the safety thermostat.
2
Check the set water temperature. See
234].
Possible cause:
Faulty water temperature setting.
3
Perform a check of the 3-way valve. See
99].
Possible cause:
Faulty 3‑way valve.
4
Perform a check of the operation of the Aquastat. See
273].
Possible cause:
Faulty Aquastat.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.3.21 A1-00 – Zero cross detection problem
Trigger
Effect
Reset
Power supply
abnormality. The sinus of
the power supply crosses
the 0‑axis too often in
±10 seconds.
Unit will stop operating.
Manual reset via user
interface.
Power reset.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Perform a check of the main PCB. See
Possible cause:
Faulty main PCB.
2
Check if the power supply is compliant with the regulations. See
254].
draft – 31/05/2022 15:53
Summary of Contents for EBLA04E V Series
Page 322: ...14 14...
Page 323: ......