E83
FAULT CODE
Potterton
Room Controller Communication Fault
Medium Severity
Engineer Required
The boiler cannot communicate with the room controller — may be a wiring fault or controller failure.
Step-by-Step Fix Guide
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Step 1
Check that wiring to the room controller is secure
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Step 2
Turn off at mains for 10 minutes, then restart
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Step 3 Engineer only
If fault persists, call a Gas Safe engineer to check the controller wiring
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.