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Components
Service manual
131
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
Did the fuse blow or did the field
supplied circuit breaker of the booster
heater trip?
Action
Yes
Replace the booster heater, see
No
Return to
129] of the booster
heater and continue with the next
procedure.
To perform a check of the booster heater contactor(s)
Prerequisite:
First perform an electrical check of the booster heater, see
1
Measure the power supply voltage between the following terminals of the
booster heater contactor:
▪
K3M: 2‑4
The measured voltages MUST be 230 V AC ± 10%.
Is the measured power supply voltage
correct?
Action
Yes
Skip the next step.
No
Continue with the next step.
2
Check the power supply (source) of the booster heater.
Is the power supply (source) of the
booster heater correct?
Action
Yes
Correct the wiring and/or components
between the power supply (source) and
the booster heater contactor K3M, see
314].
No
Adjust the power supply (source) of the
booster heater.
3
With the
Actuator test run
still active, activate booster heater test.
4
Measure the voltage between the following terminals of the booster heater
contactor.
▪
K3M: 1‑3 / 2‑4
The measured voltages MUST be 230 V AC ± 10%.
Summary of Contents for ALTHERMA
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