Lan Adapter Pcb; Checking Procedures; Repair Procedures; Main Pcb - Daikin Altherma EBLQ011CAV3 Service Manual

2 Components
2.16

LAN adapter PCB

2.16.1

Checking procedures

INFORMATION
It is recommended to perform the checks in the listed
order.
To check the wiring of the LAN adapter 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 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 LAN
adapter PCB correct?
Yes
No
To perform an electrical check of the LAN adapter
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 Turn ON the power of the unit.
2 Check all LEDs for correct functioning. If all LEDs are blinking
fast, the LAN adapter PCB is in error status.
a LED 1: heartbeat
b LED 2: LAN communication
c LED 3: P1/P2 communication
d LED 4: smart grid control active
Do the LEDs of the LAN
adapter PCB function
correctly?
Yes
No
Service manual
66
"2.19 Plate
Action
Return to "2.16.1 Checking
procedures" on page 66 of the
LAN adapter PCB and continue
with the next procedure.
Adjust the wiring of the LAN
adapter PCB, see "2.16.2 Repair
procedures" on page 66.
"2.19 Plate
a
b
c
d
Action
Return to "2.16.1 Checking
procedures" on page 66 of the
LAN adapter PCB and continue
with the next procedure.
Replace the LAN adapter PCB,
see "2.16.2 Repair
procedures" on page 66.
Problem solved?
After all checking procedures listed above have been performed:
Is the problem solved?
Yes
No
2.16.2

Repair procedures

To adjust the wiring of the LAN adapter PCB
1 Adjust the wiring according to the wiring diagram and
connection diagram, see "5.2 Wiring diagram" on
2 Check that all connectors are fully plugged‑in. All colour codes
MUST correspond.
3 Check that no connectors are damaged.
Is the problem solved?
Yes
No
To remove the LAN adapter 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 Disconnect all connectors and the ground wire from the LAN
adapter PCB.
2 Carefully pull the LAN adapter PCB and unlatch the PCB
supports one by one using a small pliers.
3 Remove the LAN adapter PCB from the switch box.
4 To install the LAN adapter PCB, see
procedures" on page 66.
To install the LAN adapter PCB
1 Install the LAN adapter PCB in the correct location in the switch
box.
2 Latch the PCB supports using a small pliers to fix the LAN
adapter PCB.
3 Connect all connectors and ground wire to the LAN adapter
PCB.
Is the problem solved?
Yes
No
2.17

Main PCB

NOTICE
Select the correct type.
EBLQ+EDLQ011~016CAV3+W1 + EBLQ+EDLQ011~016CA3V3+W1
+ EK(2)CB07CAV3 + EKMBUHCA3V3+9W1
Action
No further actions required.
Return to the troubleshooting of
the specific error and continue
with the next procedure.
page 101.
Action
No further actions required.
Return to "2.16.1 Checking
procedures" on page 66 of the
LAN adapter PCB and continue
with the next procedure.
"2.19 Plate
"2.16.2 Repair
Action
No further actions required.
Return to "2.16.1 Checking
procedures" on page 66 of the
LAN adapter PCB and continue
with the next procedure.
Daikin Altherma – Monobloc
ESIE18-04 – 2019.02