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The Ultimate Boiler Fault Finding Resource [40 Detailed Guides Included]
Over the last year, we’ve posted over 100 heating articles, many of which relate to boiler fault finding and central heating problems.
I’ve spent a while trying to organise 40 of them in a way that helps readers quickly and easy find the article they need, to diagnose their boiler fault.
We’ll be using this page as our central heating and boiler fault finding resource guide, and will be adding to it over time.
So, feel free to bookmark it and come back to it when you’re stuck.
To begin, we’ve created a generic guide to boiler problems here. It’s a good starting point.
That’s going to be useful if you have no idea what’s causing the problem. Once you’ve used that boiler problem guide to figure out what could be causing the issue, come back to this page and you’ll find the specific guide listed below.
Not all boiler fault-finding missions are going to end positively. For when they don’t, we’d suggest checking out WarmZilla. They’re a reputable online boiler installation company with great connections with boiler manufacturers, who always put customers first. That means installation of Worcester boilers with WarmZilla are about as cheap as you’ll find. We got a quote for a new Worcester 25i at £1,639 fixed (use discount code WZ-200 at checkout for an additional £200).
Boiler Fault Finding Guide
If you suspect your boiler fault relates to a specific part, click on the relevant links below.
We’d always suggest getting repair quotes. But, if your boiler is out of warranty and likely to cost £400+, it might be time to consider a replacement. You can get on-screen prices (no personal details needed) within 2 minutes, using this clickable form.
Noisy Boilers & Central Heating
Guides for boiler fault finding that relates to any noisy part of a central heating system are listed here.
Boiler Fault Finding For Pressure & Leaks
Any issues relating to boiler fault finding for leaks and pressure have been added below.
- What Pressure Should A Boiler Be?
- Boiler Is Losing Pressure
- Boiler Leaking (From The Bottom Of The Casing)
- Boiler Is Leaking (General)
Causes, fixes and fault-finding guides for boiler lockouts.
- Causes Of Boiler Lockouts
- How To Reset A Boiler
- Central Heating Sludge Build Up [Causes & Fixes]
- No Power To A Boiler
- Boiler Is Overheating
- No Hot Water
- Boiler Return Pipe Cold
- Boiler Won’t Ignite
Brand & Model Specific Boiler Fault Finding
Not sure what part is causing the issue, but know the brand or model?
Click on the relevant link below to start fault finding your boiler brand.
- Worcester (click here for Worcester Bosch RI)
- Vokera (and specifically, red lights)
- Vaillant (And, A Specific Article On The F75 Fault)
Thanks for reading.
Looking to replace your old and unreliable boiler? Use this 90 second clickable form to get fixed prices on screen.
If you’re struggling to fix a problem (or its gas related), you can get a qualified engineer to come and give you a hand here.
We’re always trying to create new articles.
So, if your problem isn’t listed above, feel free to leave a comment and we’ll do our best to help.