E09
FAULT CODE
Potterton
Gas Valve Wiring Fault
High Severity
Engineer Required
There is a fault in the wiring to the gas valve — either the connection cable has a fault or the gas valve itself is defective.
Step-by-Step Fix Guide
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Step 1
Turn off the boiler
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Step 2 Engineer only
Call a Gas Safe registered engineer to inspect the gas valve wiring and the valve itself
Gas Safe Reminder
Work on gas appliances must be carried out by a Gas Safe registered engineer. The steps above cover safe checks a homeowner can perform - any internal component replacement requires a qualified professional. If in doubt, always call an engineer.