Worcester Bosch showing C6 in Darlaston? It usually means the fan is not running at the right speed. What to check and what the engineer does.
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From outside, make sure nothing is blocking the end of the flue. Do not dismantle anything.
A fan that hums, grinds or is silent is worth mentioning. It tells the engineer a lot.
Reset once. If C6 returns, leave the boiler off.
The fan, its wiring, the flue and the air pressure readings. A fan is a common, single-visit repair.
A photo of C6, the boiler label and, if you can, the flue outside.
A fan that is wearing out often gets louder for a few weeks first. A whine on start up or a rattle as the boiler fires is worth mentioning, as it points straight at the fan.
On many Worcester Bosch boilers, C6 means the fan is not running at the speed the boiler expects. The fan clears the air through the boiler and flue. Without it working properly, the boiler will not light.
The fan may be wearing out, its wiring may be loose, or the flue may be restricted. Check your manual for your exact model.
In Darlaston, many flues come out of the side of terraced and semi-detached houses close to a passage or a neighbouring wall. A flue tucked into a tight gap is more likely to collect leaves and debris.
No. The boiler will not light without the fan, which keeps it safe. Should you ever smell gas, leave the property, do not use light switches and call the National Gas Emergency line on 0800 111 999.
A noisy fan before the code appears is common. It usually means the fan bearings are worn.
Usually an hour or two once the fan is on hand.
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