E058 High
Your boiler has detected an issue with its incoming electrical power supply, which is often caused by a voltage surge or a fault on the main circuit board.
Technical description: Main voltage error
Typical repair cost: £180-450 (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 E058 — no call-out fees, no surprises.
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Parts commonly replaced
- Main Printed Circuit Board (PCB)
- Electrical wiring harness
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