E46 High
Your boiler is having trouble monitoring its internal water pressure, which has caused it to stop working for safety.
Technical description: Water pressure sensor error – could be open or short
Typical repair cost: £120-210 (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 E46 — no call-out fees, no surprises.
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Parts commonly replaced
- Water pressure sensor
- Wiring harness
- Main circuit board (PCB)
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