Replacing Fan Or Gas Fittings - Vaillant ecoTEC exclusive 832 Installation And Maintenance Instructions Manual

10 Replacing components
10.3

Replacing fan or gas fittings

a
Danger!
Risk of personal injury and/or material
damage as a result of improper installation!
You need to follow the corresponding safety
instructions in order to safely replace the
component.
> Before replacing the component, comply
with the safety instructions in section 10.1.
> Disconnect the appliance from the mains as described
in Section 10.1, and close the gas cock in the gas
supply pipe.
Fig. 10.2 Dismantling fan with gas valve
> Remove the screw (2) and remove the air inlet pipe
(1) from the inlet spigot on the gas fitting.
> Release the gas supply pipe (4) on the gas valve.
> Pull out the plug from the gas valve.
> Only ecoTEC exclusive 832: Pull out the plug from the
fan printed circuit board.
Only ecoTEC exclusive 838: Open the coupling of the
mains input.
> Release the four screws (3) on the compact thermo
module .
> Remove the complete "gas fitting/fan" unit.
56
5
Fig. 10.3 fitting/fan screwed joint
> Release both fixing screws (5) on the gas fitting and
remove the fan from the gas fitting.
> Replace the defective component.
b
Caution!
1
Risk of material damage from incorrect
installation!
The gas valve and fan may be damaged.
> Fit the gas valve and the fan in the same
2
position as before.
> Screw the fan to the gas fitting. Use the new seals.
3
> Re-install the complete "gas fitting/fan" unit in
reverse sequence.
> After completing the work, check for gas leaks and
perform a function check (see Section 6).
4
Installation and maintenance instructions ecoTEC exclusive 0020017768_07