Low mains voltage High
Your boiler is not receiving enough electrical power from the grid to operate safely and has shut down as a precaution.
Technical description: Less than 160V to boiler. Contact electricity provider.
Typical repair cost: £0-120 (including labour)
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Protect yourself from future repair bills
A boiler cover plan would cover faults like Low mains voltage — no call-out fees, no surprises.
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Parts commonly replaced
- Main PCB
- Voltage Stabiliser
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