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POINTS FOR THE BOILER USER
Note. In line with our current warranty policy we would ask that you check through the following guide to identify any
problems external to the boiler prior to requesting a service engineers visit. Should the problem be found to be other than
with the appliance we reserve the right to levy a charge for the visit, or for any pre-arranged visit where access is not gained
by the engineer.
TROUBLESHOOTING - TYPICAL NON PRODUCT FAULTS
Problem
1
Boiler is not working for
central heating or hot water.
2
Boiler is not working for
central heating or hot water
but attempts to fire by going
through 3 ignition attempts.
Display shows ' L : F
L : F ' (flashing).
L : F
L : F
L : F
3
Boiler is not working for
central heating or hot water
and the display shows ' L:A
(flashing).
4
Boiler is not working for
central heating or hot water
and the display shows ' H:A
(flashing).
The code of practice for the installation,
commissioning & servicing of central heating systems
Wolseley Consumer Helpline: 0870 8498057
•
Check there is power to the boiler – switch (A) in the ON position and ' 0 ' displayed on the
controls.
•
If ' 0 ' not displayed then not a boiler fault – contact your installer/service company.
•
Check external programmer is set to an 'ON' period and the relevant function selected i.e.
central heating or domestic hot water. Test by overriding the programmer by setting to
'continuous.
•
Check room thermostat for central heating or the cylinder thermostat for domestic hot water,
are set at the required temperature. To test operation of either thermostat turn fully up. If no
response contact your installer.
•
Press reset button (D) for 2 seconds to repeat ignition sequence.
•
Check gas supply (try another appliance – cooker/fire etc.) – If no gas supply then not a
boiler fault – contact gas supplier.
•
Check condensate pipe is not blocked or frozen. If blocked clear blockage – if not possible
to check contact your installer.
•
Press reset button (D) for 2 seconds, the boiler should then re-light. If fault recurs this
indicates an overheat condition. The boiler should be turned off and your installer contacted.
L:A '
L:A
L:A
L:A
•
Check if ALL radiators have thermostatic radiator valves fitted. If they have contact your
installer.
•
Check if ALL radiators have thermostatic radiator valves fitted. If they have contact your
installer.
H:A '
H:A
H:A
H:A
Solution
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