Older boiler diagnosis
We identify the model, check the manual and assess what can be repaired.
Ask about your boilerCan your older boiler still be repaired?
We identify the model, check the manual and look into parts before recommending the next step.
- Gas Safe registered
- Discontinued models
- Parts checked before we quote
- All of London
Illustrative image
What the code says. What it does not.
A fault code narrows down where to look. It does not say whether a boiler is worth repairing, and it does not say which part has failed. Below is what the manufacturer manual says, with the page it says it on.
| Model and fault | What it can mean | Manual source | Repair or replace? |
|---|---|---|---|
Baxi Bermuda BBU 15 HEE133
|
Interruption of the gas supply, failed ignition, or no flame detected. On this model a three digit code is shown split, so E133 appears as "E1" alternating with "33". |
Installation & Servicing Instructions, 2014, p. 36 [M] | Inspect first. Often the gas supply or the ignition, not the boiler. |
Baxi Bermuda BBU 15 HEE158
|
Condensate discharge system fault. | Installation & Servicing Instructions, 2014, p. 36 [M] | Assess the drain before anything else. A frozen or blocked pipe is common. |
Baxi Bermuda BBU 15 HEE125
|
Circulation fault in the primary circuit. The manual gives the trigger as the boiler exceeding the selected temperature by 25°C twice within two hours of the burner lighting. | Installation & Servicing Instructions, 2014, p. 36 [M] | Check circulation and the water in the system first. |
Baxi Bermuda BBU 15 HEE110
|
The primary water has overheated, or there is excess condensate in the sump. The manual limits the boiler to four resets in any five hour period. |
Installation & Servicing Instructions, 2014, p. 36 [M] | Assess the cause. The manual allows a reset, held for five seconds. |
No rows match that search.
Meanings come from the manufacturer manual. Repair guidance depends on inspection and on parts.
A code on its own cannot decide whether a boiler should be replaced.
The model matters. So does the part.
A discontinued boiler deserves a proper assessment.
Practical help for older heating systems
Repair or replace assessment
We look at parts, condition and how long the model can be supported before recommending the next step.
Ask about your boiler
Boiler repairs
We find the fault, explain it, and fix it where the part can be had.
Ask about your boiler
Boiler servicing
An annual check keeps small faults from turning into breakdowns.
Ask about your boiler
Unvented cylinder repairs
Repairs to unvented hot water cylinders and their controls.
Ask about your boiler
Start with the badge. We will start with the facts.
A model number or a photograph is a useful first step.
What happens next
-
1
Talk through the symptoms on the phone.
We ask a few questions and note the model if you have it.
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2
Check the part before quoting.
We look up the manual and find out what can be had.
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3
Agree everything before any work.
We explain the options and only go ahead with your approval.
A price for a boiler nobody has seen is a guess. We look at yours first.
Request a call back
Tell us where you are and what the boiler is doing. We will call you back.
Frequently asked questions
Can you still get parts for it?
Often, yes. We identify the model from the data badge and check what stockists hold before anything is agreed. Where a part is no longer held, we will tell you.
Is it legal to keep a thirty-year-old boiler?
Yes. There is no law against an older boiler. It has to be safe, and a Gas Safe registered engineer has to say so.
Why will nobody touch my boiler?
Many firms only work on models they fit themselves. We work on older and discontinued ranges, which is the whole point of this business.
Why do you not publish prices?
A price for a boiler nobody has seen is a guess. We look at yours, then give you a clear quote before any work begins.