Boiler Error Codes - Fast Diagnosis & Repair

Boiler Error Codes – Fast Diagnosis & Repair

Boiler Error Codes Fixed Fast by Gas Safe Engineers

If your boiler has stopped working, is displaying a fault code, or is flashing warning lights on the control panel, it usually means the system has detected a fault that needs diagnosing and resolving. At Direct Plumbing and Heating Ltd, our team of Gas Safe registered engineers has extensive experience diagnosing boiler error codes and restoring heating and hot water quickly and safely.

Call us now for immediate help: 01293 922239

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Is Your Boiler Showing an Error Code?

Modern boilers display a warning code (such as E119, F28, EA or F1) on the front panel when something isn’t right. These codes help pinpoint what’s wrong – from low pressure to ignition failure or sensor faults. Ignoring them can lead to:

  • No heating or hot water
  • Repeated boiler lockouts
  • Costly damage if left unresolved

Whether it’s a small issue or something more serious, we’re here to help.

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Get Expert Boiler Help Quickly

Boiler Brands We Diagnose & Repair

We repair boiler fault codes, across all major brands, including, but not limited to:

  • Worcester Bosch boiler error codes (EA, E9, ER, A1)
  • Vaillant boiler fault codes (F22, F28, F29)
  • Ideal boiler error codes (F1, F2, F4)
  • Baxi boiler fault codes (E119, E133, E168)
  • Glow-worm boiler errors (F22, F28, F29)
  • Potterton boiler fault codes (E133, E119)
  • Viessmann boiler error codes (F2, F4, F5)

If your boiler brand or code isn’t listed, we can still help.

Boiler Error Codes We Repair

Worcester Bosch Boiler Error Codes

If your Worcester Bosch boiler is showing an error code such as EA, E9, A1 or ER, it usually means ignition failure, overheating, or pressure issues.

Our Gas Safe engineers regularly fix:

  • Low pressure faults
  • Overheating shutdowns
  • Repeated reset failures

Ideal Boiler Error Codes

An Ideal boiler error code such as F1, F2 or F4 usually means pressure loss, ignition failure, or fan issues.

We fix:

  • Boiler lockouts
  • Pressure-related shutdowns
  • Fan and airflow faults

Vaillant Boiler Fault Codes

Seeing a Vaillant boiler error code like F22, F28 or F29? These faults often stop heating and hot water completely.

We diagnose and repair:

  • Low water pressure faults
  • Ignition and flame failure
  • Gas supply and sensor issues

Potterton Boiler Fault Codes

Potterton boiler faults such as E133 or E119 commonly cause complete boiler shutdowns.

We provide:

  • Rapid fault diagnosis
  • Safe repairs
  • Long-term solutions

Viessmann Boiler Error Codes

A Viessmann boiler error code like F2, F4 or F5 often requires specialist knowledge.

We repair:

  • Sensor failures
  • Overheat shutdowns
  • Burner and ignition faults

Baxi Boiler Fault Codes

Common Baxi boiler error codes like E119, E133 and E168 indicate pressure faults or ignition failure.

We help with:

  • Low system pressure
  • Flame detection issues
  • Control board faults

Glow-worm Boiler Error Codes

If your Glow-worm boiler shows F22, F28 or F29, it often won’t restart without professional repair.

Our engineers resolve:

  • Pressure drops
  • Ignition problems
  • Faulty sensors

Common Boiler Error Codes Explained

Different manufacturers use different codes, but here are some of the most frequent ones seen on UK boilers and what they often mean:

Common Fault Codes

E119 – Low Water Pressure

Indicates low system pressure — often remedied by repressurising the boiler, but repeated occurrences could signal a leak.

F28 / F29 – Ignition Problems

Seen on many boilers (e.g., Vaillant). Typically caused by ignition failure, gas supply interruptions, or flue blockages.

E133 – Gas Supply Issue

Suggests an issue with the gas feed or valve. Confirm your gas supply is on; persistent faults need professional attention.

Fan & Sensor Faults (e.g., E50, E160)

Indicate problems with internal fans or airflow vents — often require engineer assistance.

Overheating or Flow Errors (e.g., E1 / E4 / E5)

Generally signal circulation or thermostat issues inside the boiler.

*Note: Exact meanings vary by boiler make and model — always refer to the manufacturer’s manual for specific definitions.

How We Can Help

With Direct Plumbing and Heating Ltd, you get:

✅ Fast diagnosis of boiler fault codes
✅ Clear explanation of the problem in plain language
✅ Safe Gas Safe repairs by qualified engineers
✅ Transparent pricing & no hidden fees
✅ Reliable service you can trust

We aim to restore your heating and hot water with minimal fuss — and ensure the fault doesn’t keep coming back.

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Why Choose Direct Plumbing & Heating Ltd?

✔️ Gas Safe registered engineers ✔️ Fast response times ✔️ Clear, honest pricing ✔️ All major boiler brands covered ✔️ Local, trusted service ✔️ Fully insuredNeed help now? Call 01293 922239 or fill out our – Boiler Error Code Request Form above.

FAQs – Boiler Error Codes

1. What does an error code on my boiler mean?
An error code is your boiler’s way of telling you something is wrong. Each code corresponds to a specific fault, such as low pressure, ignition failure, or a sensor issue.
2. Can I fix a boiler error code myself?
Some minor faults, like low pressure, can sometimes be resolved by topping up the system. However, most faults require a qualified engineer to prevent damage or safety risks.
3. Why does my boiler keep locking out?
Repeated lockouts often indicate an unresolved fault — such as gas supply issues, overheating, or circulation problems. This should be professionally diagnosed.
4. Is it safe to reset my boiler?
You can usually try one reset. If the fault returns, do not keep resetting it — this could cause further damage.
5. How quickly can you attend?
We aim to offer fast response times, often same or next day depending on availability.

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Simply fill out the form below, and our expert team will be in touch to discuss your needs and provide a tailored quote.