Glow-worm showing F.28 in Tipton? The boiler tried to ignite and failed. Three quick checks to do first, and what a gas engineer looks at if it keeps coming back.
F.28 on a Glow-worm means the boiler went through its lighting sequence and never detected a flame. It then locked itself out.
In Tipton the everyday causes are simple ones. The meter has run out. The gas has been turned off at the meter after other work. Or the condensate pipe has frozen on a hard morning.
If those check out, the fault is inside the boiler and needs a gas engineer. Model years differ, so confirm the code against your manual.
No. It means gas was not burning, not that gas is escaping. A smell of gas is different. Leave the house, do not touch switches, and call 0800 111 999 straight away.
A cold snap freezing the condensate pipe is the classic cause of a boiler that is fine in the day and dead by morning.
Ask for the Gas Safe ID card when they arrive and read the back. It shows the appliance types that engineer is qualified for.
The failed part and the time to reach it. An electrode is a short job. A gas valve takes longer. The engineer confirms the cause first, then explains the job and the cost before starting.
If the hob will not light either, the boiler is fine and the supply is not. Check the meter lever is in line with the pipe. On a prepayment meter, check the credit.
The thin plastic pipe leaving the wall carries water from the boiler. When it freezes the boiler shuts down. Pour warm water, not boiling, along it and try once more.
Press reset and wait. If F.28 appears again on the next attempt, switch off and leave it. Do not cycle it over and over.
An engineer will test gas pressure at the boiler. They will look at the spark electrode and flame sensor, and check the gas valve and flue. Nothing here is a homeowner job.
The engineer watches the boiler try to light, which shows whether the spark, the gas or the flame sensing is failing. They fix or replace the part, then run a full cycle. Allow one to two hours.
A photo of the display, the boiler label and the pipe outside if it is visible. Tell us if the hob works and whether you are on a prepayment meter.
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