Daikin Altherma 3 M - Page 161

3 | Components
Service manual
161
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
Prerequisite: Remove the required plate work, see "3.17Plate work"[4230].
1 Turn ON the power of the unit.
2 Measure the voltage on the connectors X1A: 1‑3 and X19A: 1‑3 on the hydro
PCB.
Result: The measured voltage MUST be 230VAC.
a b
a Connector X1A
b Connector X19A
Is the measured voltage on the hydro
PCB correct?
Action
Yes Return to "3.12.1Checking
procedures"[4160] of the hydro PCB
and continue with the next procedure.
No Continue with the next step.
Single phase units
1 Measure the output voltage on connector X803A: 1‑3 on the noise filter PCB.
Result: The measured voltage MUST be 230VAC.
Is the measured output voltage on the
noise filter PCB correct?
Action
Yes Correct the wiring between the noise
filter PCB and the hydro PCB, see
"6.2Wiring diagram"[4314].
No Perform a check of the noise filter PCB,
see "Checking procedures"[4194].
Three phase units
1 Measure the output voltage on connector X803A: 1‑3 on the main PCB.
Result: The measured voltage MUST be 230VAC.
Is the measured output voltage on the
main PCB correct?
Action
Yes Correct the wiring between the main
PCB and the hydro PCB, see "6.2Wiring
diagram"[4314].