Daikin VRV IV+ Service Manual page 267

To check if the correct spare part is installed
To check the wiring of the fan inverter PCB
To check the fuse of the fan inverter PCB
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
Does the HAP LED blink in regular
intervals (approximately 1 Hz)?
No
Prerequisite: First perform all earlier checks of the fan inverter PCB, see
4
procedures" [ 265].
1 Visit your local spare parts webbank.
2 Enter the model name of your unit and check if the installed spare part
number corresponds with the spare part number indicated in the webbank.
Is the correct spare part for the fan
inverter PCB installed?
Yes
No
Prerequisite: First perform all earlier checks of the fan inverter PCB, see
4
procedures" [ 265].
Prerequisite: Stop the unit operation via the central controller.
Prerequisite: Turn OFF the respective circuit breaker.
1 Check that all wires are properly connected and that all connectors are fully
plugged‑in.
2 Check that no connectors or wires are damaged.
3 Check that the wiring corresponds with the wiring diagram, see
4
diagram" [ 385].
INFORMATION
Correct the wiring as needed.
Is the problem solved?
Yes
No
Prerequisite: First perform all earlier checks of the fan inverter PCB, see
4
procedures" [ 265].
1 Measure the continuity of the fuse. If no continuity is measured, the fuse has
blown.
3
Action
Replace the fan inverter PCB, see
4
"Repair procedures" [
Action
Return to "Checking
4
procedures" [ 265] of the fan inverter
PCB and continue with the next
procedure.
Replace the fan inverter PCB, see
4
"Repair procedures" [
Action
No further actions required.
Return to "Checking
4
procedures" [ 265] of the fan inverter
PCB and continue with the next
procedure.
Components
|
269].
"Checking
269].
"Checking
"6.2 Wiring
"Checking
Service manual
267