Troubleshooting - Potterton Promax Combi HE Plus A Range User's Manual And Important Warranty Information

Boiler not working
START
Make sure the gas supply is
turned ON and check if other
gas appliances are operating
(e.g. fire, cooker).
NO
If no gas, consult your
supplier.
Is the Central Heating System
Pressure needle in the GREEN
section, between 1 and 2.5 bar ?
NO
1
If the reading falls below 1 bar
repressurise the system as
described in section 3.1.
Error Code E119 showing low
pressure.
4
© Baxi Heating UK Ltd 2012
YES
Is the ON/OFF/Reset
Select Switch in the
( ) position and
the display lit ?
Reset
NO
Check electricity to the
boiler is switched on.
2
3
0 4
bar

2.0 Troubleshooting

YES
Central Heating
Indicator
Display
Boiler operating satisfactorily.
YES
Does the display show an error
code e.g. E133, E110 ?
YES
Turn the ON/OFF/Reset
Selector Switch to Reset.
Reset
Is the ( ) or ( ) light on
and the ( ) on ?
Burner On
YES Indicator
If boiler does not
Reset
NO
Domestic Hot
Water Indicator
NO