Daikin Altherma EBLQ011CAV3 Service Manual page 63

a
a HAP LED
Does the HAP LED blink in
regular intervals (1 second
ON/1 second OFF)?
Yes
No
To check if the correct spare part is installed
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
inverter PCB installed?
Yes
No
To check the wiring of the inverter PCB
1 Check that all connectors are fully plugged‑in. All colour codes
MUST correspond.
2 Check that no connectors are damaged.
3 Check that the wiring corresponds with the wiring diagram, see
"5.2 Wiring diagram" on page 101.
Is the wiring on the inverter
PCB correct?
Yes
No
EBLQ+EDLQ011~016CAV3+W1 + EBLQ+EDLQ011~016CA3V3+W1
+ EK(2)CB07CAV3 + EKMBUHCA3V3+9W1
Daikin Altherma – Monobloc
ESIE18-04 – 2019.02
Action
Return to "Checking
procedures" on page 62 of the
inverter PCB and continue with
the next procedure.
Replace the inverter PCB, see
"Repair procedures" on
page 64.
Action
Return to "Checking
procedures" on page 62 of the
inverter PCB and continue with
the next procedure.
Replace the inverter PCB, see
"Repair procedures" on
page 64.
Action
Return to "Checking
procedures" on page 62 of the
inverter PCB and continue with
the next procedure.
Adjust the wiring of the inverter
PCB, see "Repair procedures" on
page 64.
To perform an electrical check of the inverter PCB
Prerequisite: Turn OFF the unit via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
work" on page 77.
1 Open the compressor insulation.
2 Measure the voltage on the inverter PCB between TP1 and
TP2. Wait until the voltage drops below 10 V DC.
WARNING
The smoothing capacitor MUST discharge below 10 V DC
before disconnecting the Faston connectors from the
compressor wiring terminals. Risk of electrocution.
3 Disconnect the Faston connectors from the compressor wire
terminals U, V and W.
INFORMATION
Note the position of the Faston connectors on the
compressor wire terminals to allow correct connection
during installation.
4 Connect the Faston connectors to the Inverter Analyzer (SPP
number 1368521).
5 Turn ON the power of the unit.
6 Locate the LEDs on the inverter PCB. The LED status should
be as follows:
a b c d
a H1P
b H2P
c H3P
d H4P
e H5P
f H6P
g H7P
LED OFF
LED ON
LED blinking
7 Locate the switch BS1 on the Inverter Analyzer and press for
5 seconds to activate the inverter test. The LED status should
be as follows:
a b c d
8 Press the switch BS2 twice. The LED status should be as
follows:
a b c d
2 Components
"2.19 Plate
e f g
e f g
e f g
Service manual
63