E135
FAULT CODE
Main Heating
Gas Supply Interruption
Medium Severity
DIY Check Possible
The gas supply to the boiler has been interrupted.
Step-by-Step Fix Guide
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Step 1
Check the gas isolation valve is open
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Step 2
Check other gas appliances work
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Step 3
Reset the boiler
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Step 4
If fault persists, call a Gas Safe engineer
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.