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Troubleshooting
Service manual
16
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
2.3.7 81-06 – Outlet water temperature thermistor abnormality
Trigger
Effect
Reset
Outlet water thermistor
input is out of range.
Unit will stop operating.
Automatic reset.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Perform a check of the outlet water after heat exchanger thermistor. See
Possible cause:
Faulty outlet water after heat exchanger thermistor.
2
Perform a check of the hydro PCB. See
Possible cause:
Faulty hydro PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
2.3.8 89-01 – Heat exchanger frozen
Trigger
Effect
Reset
Warning 89‑02 or 89‑03
occurred 3 times, with
less than 30 minutes
between each warning.
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 inlet water thermistor. See
Possible cause:
Faulty inlet water thermistor.
2
Perform a check of the outlet water after heat exchanger thermistor. See
Possible cause:
Faulty outlet water after heat exchanger thermistor.
3
Perform
a
check
of
the
refrigerant
liquid
thermistor.
See
Possible cause:
Faulty refrigerant liquid thermistor.
4
Perform a check of the hydro PCB. See
Possible cause:
Faulty hydro PCB.
5
Check that all stop valves of the refrigerant circuit are open. See
286].
Possible cause:
Closed stop valve in the refrigerant circuit.
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