Why is my combi boiler giving me hot water but no heating?
If you’ve got hot water, but no central heating then there are more issues it could be if it’s not the thermostat or the boiler pressure. Common reasons for this particular fault are broken diaphragms and airlocks, or a motorised valve failing.
Why is my heating not firing up?
Low Thermostat: The boiler may not fire up if the thermostat is set too low. Your heating system won’t start until the temperature of the environment is below the temperature set on the boiler. Sometimes, the boiler is not firing up because of an electrical fault. This could be a faulty plug or a blown fuse.
How do you fix a boiler that is not heating?
No Heat or Poor Heat
- Thermostat – The first thing to check when boiler troubleshooting is the thermostat setting.
- Fuse box or circuit panel – Check the fuse box or circuit panel for a blown fuse or tripped breaker.
- Standing pilot – If the boiler uses a standing pilot light, check to make sure it’s on.
Why are my radiators cold when the heating is on?
Why is one radiator cold when the heating is on? One cold radiator usually indicates that either there is air in the system or there is a stuck valve within that radiator. To check if the valve is stuck, you can remove the rotatable head on the TRV to reveal a raised pin beneath it.
Why is my oil heating not heating my water?
Your oil-fueled boiler may be failing to produce heat because of a thermostat malfunction, a loss of power or low fuel. You may be able to restore heat by resetting the system.
What are the problems with the glow worm boiler?
Top 6 Glow-worm Boiler Problems Glow-worm Boiler Problems Glow-worm Error / Fault Code Low water pressure 108 or F22 Flame detection fault F16 No heating or hot water 501 Frozen condensate pipe F1, F4, F28 or F29
How old is glow worm 30 CXI combi boiler?
I have a 7-8 year old glow worm 30 cxi Combi boiler that I have just noticed had stopped heating my house. I have tested the water and this is getting hot, the Bar pressure was at 0.5 so I topped this up to 1.0 no improvement.
Is the glow worm boiler part of Vaillant?
Glow-worm is part of the Vaillant Group, and the company has its own dedicated service engineers to cover both Glow-worm and Vaillant boilers. Parts are easily available and reasonably priced, and they are a popular option for many of my clients.
What is the fault code on a flexicom glow worm boiler?
Fault code F14 (Flexicom CX range) If you were to look at the service manual, you’d find this fault states there’s a defective gas valve. However, check there is power from the PCB to the gas valve. If not, it’s not the gas valve at all, but either the PCB or the wiring harness.