Translating your boiler
The old saying goes that women are from Venus and men are from Mars…
Some things in life are impossible to read – but your boiler shouldn’t be one of them.
We recently asked you to come forward and feedback, via the blog, on how our boilers functioned, particularly with respect to boiler controls.
Andrew Slater, Technical Support Manager at Glow-worm has highlighted a few instructions which are commonly queried by customers calling in.
F4 credit gas meter may have run out
F5 overheat, please check your user manual for reset advice
F9 low pressure, please check your user manual for top up advice
F22 low pressure/poor circulation – possible air locks, try bleeding the radiators
F26 poor circulation – possible air locks, try bleeding the radiators
For more information please refer to your boiler manual.


R. Garratt - “There is no mention of plate to plate heat exchanger blocked / inefficient. Is this actually fault code 14 and why there is so much confusion over it. There is a funtion in the IRIS software where the DHW temperature control is taken over by the CH flow thermistor know as antiscale. It allows limited use of DHW without complete failure. If this is not fault code 14 which one is it?”
Wednesday 28/04/2010, 12:37 pm
admin - “Hello R Garratt
I’m reliably informed that no Glow-worm boiler uses IRIS software. My colleagues have suggested therefore that you may not have a Glow-worm boiler (thus rendering the advice in the post irrelevant!).
I would suggest that you check the make and manufacture of your boiler.
I’m sorry I can’t help more!
Cheers, Sally”
Wednesday 28/04/2010, 2:03 pm
V Rushton - “The pre heat how do you disable this?
Not the quietest boiler I have had – why are they noisy? Fires up after only second or two turn of the hot tap is this a fault?
Kind regards”
Thursday 12/08/2010, 11:28 am
admin - “Hi V Rushton – sorry for my delayed response.
Disabling this function depends on the exact boiler you have. Without further details it would be impossible for me to advise.
Give our technical team a call on 01773 828300 or contact your installer – make sure you have details on your boiler to hand!
Cheers”
Tuesday 24/08/2010, 12:19 pm