Troubleshooting
From time to time, your boiler may display an error code and
require attention. There are several error codes that you
can solve yourself, without needing to wait or pay for an
engineer to visit.
If a small spanner appears
, please contact your
Gas Safe registered engineer or Baxi Customer Support on
0330 678 0917. Make a note of any error codes you have
seen on the boiler, which can help them to identify the fault.
Hints and tips that may get your boiler
working without an engineer visit
• Check there is power to boiler (is the boiler display on?)
• Check fuses and switches are ‘ON’.
• If you have a prepayment meter, is there enough credit?
• Check that Domestic Hot Water and/or Central Heating
knobs in the front of the boiler are set to the correct
temperature.
• Are your timer and room thermostats set correctly?
• If radiators are cold, are all the radiator and thermostatic
valves ‘Open’?
• Noisy pipes? Remove air from the heating system by
bleeding the radiators.
• Boiler running even though the heating is turned o? In
cold weather, your boiler has ‘frost protection’ so it may
run for a short time even with the heating turned o, to
protect the boiler.
Error codes that you can put right yourself
A.02.06 or H.02.07
Boiler needs repressurising
All boilers need repressurising occasionally.
It’s a simple job you can do yourself. Watch our
helpful video here:
E.04.10
Frozen condensate pipe
Sometimes when it’s very cold, the white plastic
condensate pipe outside freezes, and your
boiler will shut down to protect itself. It’s an
easy problem to solve. Watch our video.
Problem Possible Causes Advice
You have no
domestic hot
water
The Boiler is not working
Check your fuses and switches
Check your electricity supply
Your water pressure may be too low
You may need to repressurise your system Watch a video: https://www.baxi.co.uk/faqs/how-to-repressur-
ise-your-boiler-if-you-have-a-digital-pressure-gauge
Your
radiators
are cold
The heating control temperature is too low Turn your room thermostat or thermostatic radiator valve to a more comfortable temperature
Check your heating mode is activated Turn on/activate your thermostat’s heating mode
Your radiator valves may be closed Check and open the radiator valves in the rooms you want to be warmer
Your boiler may not be working Check power supply, fuses and switches
Your boiler is
not working
There is no heating Check your thermostatic controls are set to deliver heating.
The temperature on your heating control
may be set too low
Turn up the temperature on your room thermostat
There may be no power supply Check power supply, fuses and switches
Your boiler is indicating an error code
Refer to ‘troubleshooting’ section in your boiler user guide or installation manual. Make a note of any error
codes so you can tell your installer
In cold weather your condensate pipe
may be frozen
Thaw your condensate pipe: https://www.baxi.co.uk/faqs/how-to-thaw-a-frozen-boiler-condensate-pipe
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