Daikin Altherma 3 M - Page 174

3 | Components
Service manual
174
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
To check the wiring of the main PCB
Prerequisite: First perform all earlier main PCB checks, see "Checking
procedures"[4171].
Prerequisite: Stop the unit operation via the user interface.
1 Turn OFF the respective circuit breaker.
2 Check that all wires are properly connected and that all connectors are fully
plugged‑in.
3 Check that no connectors or wires are damaged.
4 Check that the wiring corresponds with the wiring diagram, see "6.2 Wiring
diagram"[4314].
INFORMATION
Correct the wiring as needed.
Is the problem solved? Action
Yes No further actions required.
No Return to "Checking
procedures"[4171] of the PCB and
continue with the next procedure.
To check the fuse of the main PCB
Prerequisite: First perform all earlier main PCB checks, see "Checking
procedures"[4171].
1 Measure the continuity of the fuse. If no continuity is measured, the fuse has
blown.
a
a Fuse
Blown fuse on the main PCB? Action
Yes Replace the blown fuse, see "Repair
procedures"[4178].