E70
FAULT CODE
Alpha
Chip Card / Configuration Error
Medium Severity
Engineer Required
The boiler's configuration chip card is not reading correctly or has not been properly installed.
Step-by-Step Fix Guide
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Step 1
This usually only occurs after PCB replacement or when a new chip card has been fitted
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Step 2 Engineer only
The installing engineer must check the chip card is correctly seated
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.