Troubleshooting - Potterton 8 Promax Ultra Combi 28 User Manual

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.
Boiler
Temperature
YES
Error Code
Error
Symbol
4
© Baxi Heating UK Ltd 2015
Is there electricity to the
YES
boiler ? Is the display lit ?
NO
Check electrical supply to
boiler is switched on.
Is the E and R symbol
illuminated or flashing ?
YES
Press the Reset Button

2.0 Troubleshooting

YES
R
Burner Flame
(Indicates burner
is on)
Central Heating
OR
Flame
Reset
R
Failure
Symbol
Spanner
Symbol
If it does
not reset
Reset Button
Is the Burner Flame
showing.
R
YES
Boiler operating
satisfactorily.
Is the Spanner symbol
illuminated or flashing ?
R
YES
CONTACT YOUR
INSTALLER OR
SERVICE
ENGINEER.
NO