High
E36 on Ideal Imax W

Your boiler has detected an internal communication error between its main parts, causing it to shut down for safety until the connection is restored.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

Error Mode: The display will flash on and off with the error code shown. The unit will be inoperative until the fault is rectified.

From this model's manual
Verified against the Ideal Imax W installation & service manual, page 49.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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