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48 gas CONTROL VaLVE REpLaCEMENT
1. Refer to Frame 40.
2. Unplug the electrical lead connection from the
gas control valve and disconnect the earth wire.
3. Disconnect the earth wire.
4. Remove the outlet gas valve clip and slide the
pipe upwards
5. Undo the gas inlet pipe union at the inlet to the
gas valve.
6. Undo the single screw fixing the gas valve to
the mounting bracket and withdraw the valve
forwards.
7. Check operation of the boiler. Refer to Frames
29 & 30.
49 DIVERTER VaLVE aCTUaTOR REpLaCEMENT
To remove the motor:
2. Remove the condensate trap/siphon. Refer
to Frame 40.
3. Disconnect the inline connector block.
4. Place a flat bladed screwdriver in the
actuator slot provided and ease out the
actuator.
5. Before replacing the diverter valve actuator
proceed as follows:
a.
Re-connect the inline connector
block.
b.
Ensure that the switched live to the boiler
is off and that all DHW taps are shut and
that pre-heat is switched off.
c.
Hold the mode knob in the restart
position for more than 10 secs.
d.
The display will alternate between "d"
and "U" and the actuator will move into
the mid-position.
e.
The divertor valve will initially drive all the
way out, this may cause the spindle to
become detached from the body. If this
occurs simply screw back into the body
so the cycle can continue driving fully in
before going to mid-position.
f.
Replace the actuator into the boiler.
6. Fit the new motor ensuring the arm is
correctly engaged in the metal fork and
re-assemble in reverse order ensuring the
condensate trap/siphon is refilled with water.
7. Check the operation of the boiler. Refer to
Frames 29 & 30.
Note. All spares will be delivered in mid-
position therefore ignore point 5 and proceed to
point 6 after re-connecting the inline connector.
Independent + Combi -
SERVICING
6
Installation and Servicing
3
5
3
4
2
41
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