E.02 – .16 High
Your boiler has experienced an internal electronic failure or a communication error between its main control components.
Technical description: Permanent fault caused by channel service unit (CSU) time-out or printed circuit board (PCB) damage.
Typical repair cost: £250-450 (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 E.02 – .16 — no call-out fees, no surprises.
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Parts commonly replaced
- Main Printed Circuit Board (PCB)
- Internal Wiring Harness
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