Understanding Boiler Error Codes
Your home’s boiler is one of its most important appliances, providing you with a source of hot water and central heating.
During the colder months, your boiler’s role becomes even more essential as it is needed to heat your home and keep you and your loved ones comfortable.
Therefore, an error with your boiler can be extremely damaging. Boiler error codes will normally be displayed if a problem has occurred, and in this article, the team at Full Circuit Electrical has put together this handy blog to help you better understand the various boiler error codes.
What are boiler error codes for?
Boiler error codes are codes that indicate there is a problem with your boiler. Typically, these codes come in an alphanumeric format, with each code relating to a different type of issue.
Every boiler manufacturer has unique codes, and your boiler’s manual should outline what type of problem has occurred and what action you need to take.
What to do if my boiler displays an error code?
If your boiler is displaying an error message, then you need to take action.
There are a range of boiler fault codes which all mean different things, so the first thing you should do is consult your boiler’s manual to work out what the problem is. The manual should inform you of what to do next, and whether the issue can be rectified yourself or if a professional boiler repair is necessary.
Common boiler error codes
Common boiler error codes can relate to a variety of different problems including low water pressure, gas valve issues and blocked pipes.
A few generic codes include:
- E110, E125 and E131 – These usually indicate potential overheating issues and mean you need to bleed your radiators and reset them.
- E119 – This means boiler pressure is low and needs topping up.
- E133 – This means the boiler has failed to ignite and needs resetting.
However, every manufacturer is slightly different and codes may vary.
Boiler error codes by brand
As mentioned above, every boiler manufacturer may have slightly different error codes.
Let’s take a look at some common error codes from some of the most popular boiler brands.
Worcester boiler error codes
- FD – Power loss
- C7 – Fan not running
- C6 – Fan is too high or too low
- C1 – Fan fault
- C4 – Fan will not stop
- E2 – Flow temperature issue
- E9 – Flow temperature is too hot
Different Worcester boiler models may have different codes, so always check your manual for specific instructions.
Vaillant boiler error codes
- Vaillant boiler F20 code – Gas valve closed as maximum pressure was exceeded
- Vaillant boiler F22 code – Low water pressure
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- Vaillant boiler F25 code – The flue gas temperature is too high
- Vaillant boiler F27 code – A flame signal was detected
- Vaillant boiler F28 code – Flame signal was not detected during ignition
Alpha boiler error codes
- Fault code 1 – Ignition failure
- Fault code 2 – Overheating
- Fault code 3 – High flue temperature
- Fault code 4 – Gas valve electrical fault
- Fault code 5 – Heating sensor fault
- Fault code 6 – Water sensor fault
Ideal boiler error codes
- Ideal boiler F1 code – No water flow
- Ideal boiler F2 code – Flame loss
- Ideal boiler F3 code – Fan fault
- Ideal boiler F4 code – Thermistor problem
- Ideal boiler F6 code – Outside sensor fault
These boiler error codes are just a selection of some of the most common ones you will likely come across. There are a wide range of others you may notice, and you should always consult your manufacturer’s manual for advice.
Professional boiler repairs across York, Harrogate and Ripon
To keep your home warm and cosy during the colder months of the year, Full Circuit Electricals’ fully qualified boiler engineers operate across York, Harrogate, Ripon and beyond. With a thorough understanding of all boiler error codes, we can take care of any boiler repairs to the highest professional standards. For more information, simply contact our team today.
