Daikin VRV IV+ Service Manual page 260

3 | Components
To check the HAP LED of the fan inverter PCB
To check if the correct spare part is installed
Service manual
260
Is the measured output voltage on the
inverter PCB correct?
Yes
No
1 First perform a power check of the fan inverter PCB, see
4
procedures" [ 259].
2 Locate the HAP LED on the fan inverter PCB.
a HAP LED
Does the HAP LED blink in regular
intervals (approximately 1 Hz)?
Yes
No
Prerequisite: First perform all earlier checks of the fan inverter PCB, see
4
procedures" [ 259].
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
Action
Correct the wiring between the fan
inverter PCB and the inverter PCB, see
"4.1.2 Repair
Perform a check of the inverter PCB,
see "3.10.1 Checking
procedures" [
a
Action
Return to
procedures" [
PCB and continue with the next
procedure.
Replace the fan inverter PCB, see
"Repair
Action
Return to
procedures" [
PCB and continue with the next
procedure.
4
procedures" [ 361].
4
274].
"Checking
4
259] of the fan inverter
4
procedures" [ 263].
"Checking
4
259] of the fan inverter
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
"Checking
"Checking