Glow-worm Boiler Fault Codes Liverpool – Repairs by Gas Safe Engineers

If your Glow-worm boiler is displaying a fault code, has locked out, or you’ve suddenly lost heating or hot water, Response Boiler Repairs Liverpool can help. Our experienced Gas Safe registered engineers diagnose and repair all Glow-worm boiler faults throughout Liverpool and surrounding areas.

Whether your boiler shows F28, F22, F75, F16, F20, F61 or F83, we’ll identify the underlying problem rather than simply resetting the appliance. Many Glow-worm fault codes are designed to protect your boiler from further damage, so accurate diagnosis is essential.

We repair all major Glow-worm boilers including:

  • Glow-worm Energy
  • Glow-worm Ultimate
  • Glow-worm Betacom
  • Glow-worm Easicom
  • Glow-worm Flexicom
  • Glow-worm Micracom
  • Older Glow-worm boiler models

Our vans carry professional diagnostic equipment allowing us to test gas pressures, combustion performance, PCB faults, ignition systems, fans, pumps, pressure sensors and safety devices.

Common Glow-worm Boiler Fault Codes We Repair

F28 – Ignition Failure

One of the most common Glow-worm faults. Usually caused by:

  • Gas supply issues
  • Ignition electrode failure
  • Gas valve problems
  • PCB faults
  • Condensate blockage

F22 – Low Water Pressure

This indicates insufficient system pressure. Possible causes include:

  • Heating system leaks
  • Faulty expansion vessel
  • Pressure relief valve issues
  • Filling loop problems

F75 – Pump or Pressure Sensor Fault

Often caused by:

  • Seized circulation pump
  • Faulty pressure sensor
  • Airlocks
  • Low system pressure
  • Blocked heating circuit

F16 – Burner or Ignition Fault

Can indicate problems with:

  • Burner assembly
  • Flame detection
  • Ignition electrode
  • Gas supply

F20 – Overheating Fault

Your boiler has detected excessive temperatures. Common causes include:

  • Blocked circulation
  • Pump failure
  • Heat exchanger restrictions
  • Air trapped within the heating system

F61 – Gas Valve or Control Fault

Usually requires professional diagnosis and may involve:

  • Gas valve testing
  • Wiring inspection
  • PCB diagnosis
  • Safety checks

F83 – Temperature Sensor Problem

This fault commonly relates to:

  • Flow temperature sensor
  • Return sensor
  • Wiring issues
  • Poor circulation

F33 – Fan or Air Pressure Fault

Possible causes include:

  • Fan failure
  • Air pressure switch fault
  • Flue obstruction
  • Condensate issues

F64 – Electronic Fault

Often associated with:

  • PCB failure
  • Sensor errors
  • Wiring faults
  • Internal electrical issues

F70 – Sensor Configuration Error

Usually appears following component replacement or electrical faults and requires professional setup and testing.

F85 – Control Board Fault

May indicate:

  • PCB failure
  • Communication errors
  • Electrical component faults
  • Internal boiler electronics issues

Why Choose Response Boiler Repairs Liverpool?

We’re a traditional family-run Liverpool boiler repair business with more than 20 years of experience repairing Glow-worm boilers across Liverpool.

When you book with us you’ll receive:

  • Gas Safe registered engineer
  • Local Liverpool family business
  • Same-day appointments where available
  • Honest fault diagnosis
  • Fixed price quotations
  • No unnecessary part replacements
  • 6-month repair warranty
  • Clean and tidy workmanship
  • Repairs to all Glow-worm boiler models

Rather than replacing expensive parts unnecessarily, we carry out full diagnostic testing to locate the genuine cause of the fault, often saving customers significant repair costs.

When Should You Call an Engineer?

If your Glow-worm boiler repeatedly locks out, displays the same error code after resetting, loses pressure regularly, makes unusual noises or stops producing heating or hot water, it’s time for a professional inspection.

Repeatedly resetting a boiler without correcting the fault can sometimes lead to additional component damage and more expensive repairs.

Areas We Cover

Our Gas Safe engineer provides services across Liverpool and surrounding areas.

Allerton | Aigburth | Childwall | Woolton | Mossley Hill

Looking for your area? See our Areas We Cover page.

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Common Questions About Glow-worm Boiler Faults

What does F28 mean on a Glow-worm boiler?

F28 is an ignition fault. It can be caused by gas supply issues, ignition components, the gas valve or PCB and should be professionally diagnosed.

Can I reset a Glow-worm boiler?

You can try one reset, but if the fault code returns repeatedly you should stop resetting the boiler and arrange a repair.

What does F75 mean?

F75 usually indicates a circulation problem involving the pump or pressure sensor and often requires replacement parts or further testing.

Do you repair older Glow-worm boilers?

Yes. We repair both older and current Glow-worm boiler models throughout Liverpool.

Do your repairs come with a warranty?

Yes. All completed Glow-worm boiler repairs include our 6-month repair warranty.
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Call for Glow-worm Boiler Repairs in Liverpool

If your Glow-worm boiler is displaying a fault code or has stopped working, we’ll quickly diagnose the issue and explain the most cost-effective repair.

Response Boiler Repairs Liverpool

07856 297070

We repair Glow-worm boiler faults across Liverpool with professional diagnostics, quality workmanship and a 6-month warranty on all completed repairs.

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