Alde Compact 3020 Manual De Servicio página 8

3. COMPONENT REPLACEMENT
DANGER
HIGH VOLTAGE 230 V
FARA
• Always disconnect 12 V DC and 230 V ~ before
DANGER
commencing servicing.
GEFAHR
DANGER
FARE
FIRE/EXPLOSION RISK
FARA
VAARA
• Close the main gas tap before commencing
servicing.
DANGER
PELIGRO
• Do not use a naked flame when troubleshooting.
GEFAHR
PERICOLO
• Only Alde original parts may be used as spare
FARE
parts.
GEVAAR
VAARA
3:1 CIRCUIT BOARD REPLACEMENT
PELIGRO
1. Remove the service hatch on the boiler.
PERICOLO
2. Undo blue cable (marked S-5) (Fig. 1A), brown cable
(marked S-1) (Fig. 1B), red cable (marked S-3) (Fig.
GEVAAR
1C), grey cable (marked S-6) (Fig. 1D) and black cable
(marked S-4) (Fig. 1E) on the circuit board, as well as blue
(marked S-2) (Fig. 1F) and brown (marked S-7) (Fig. 1G)
if the boiler is equipped with a 230 V circulation pump.
3. Remove the white 6-pole terminal block (Fig. 1H)
(marked X10) from the sensors on the circuit board.
4. Remove the white 4-pole terminal block (Fig. 1I)
(marked X12) from the fan on the circuit board.
5. Remove the white 6-pole terminal block (Fig. 1J) (marked
X13) from the solenoid valve on the circuit board.
6. Remove the circuit board by pressing out the catches,
x3 (Fig. 1N) and pulling up the circuit board.
7. Remove the sensor cable (Fig. 1L) and ignition ca-
bles (Fig. 1M) from the circuit board.
8. Remove the earth cable (Fig. 1K) (marked X17) on
the board.
9. Press in the new circuit board and connect the cables as in
Fig. 1 and Fig. 3. See also the wiring diagram page 17.
10. Fit the service hatch and test run on electricity and gas.
NB. Bear in mind the possibility of static electricity
when handling the circuit board.
CABLE MARKING FIG. 1
1A. Blue cable marked S-5 on the circuit board.
1B. Brown cable marked S-1 on the circuit board.
1C. Red cable marked S-3 on the circuit board.
1D. Grey cable marked S-6 on the circuit board.
1E. Black cable marked S-4 on the circuit board.
1F. Blue cable from pump marked S-2 on the circuit board.
1G. Brown cable from pump marked S-7 on the circuit board.
1H. White 6-pole (X10) terminal block from the sensors.
1I. White 4-pole (X12) terminal block from the fan.
1J. White 6-pole (X13) terminal block from the solenoid valve.
1K. Yellow/green (X17).
1L. Sensor cable (X16).
8
Fig 1.
N
B
G
D
A
C
F
E
K
L
N
H
I
N
J
M