Function Checks - Vaillant TURBOmax VUW 242/1E Instructions For Use Manual

Function checks.

In the unlikely event that problem occurs with the operation of the
0
TURBOmax combinatinn boiler, the following points should be checked:
1. Boiler foils to operate
- Check gas supply' is turned on (see page 6)
Check water supply is turned on (see page 6)
Check water contents (see page 7)
- Check electricity supply is switched on (see page 8)
Check main on/off
(0/1)
(see page 8)
- Check boiler reset control (see page
control is turned to the on position
16)
2. Hot Water operates but not central heating
- Check central heating service valves ore open (see page 6).
Check external controls ore calling for heat (see page 12)
- Check central heating control is in the
The anti-cycling economiser control may be engaged, please wait
short time before" trying to operate heating again.
If these actions do not result in the correct operation of the boiler plea'se
consult your installer.
If you ore unable to contact your installer phone Vaillant Service Solutions:
(I)
08706060777.
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position (see page 13)
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