What does the Ideal 41 fault code mean?

Your boiler’s internal control system has encountered a critical electronic failure that it cannot clear itself.

How much does it cost to fix Ideal error code 41?

Typical repair cost for the Ideal 41 fault is £250-450 including labour.

Ideal 41 Fault Code: What It Means & How to Fix It

What the manual says

Manufacturer manual

Replace the control panel if the malfunction remains after a reset or if the malfunction has occurred before at this control panel.

Shared across the Maximiser SE range

This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.

What causes this fault?

This fault occurs when the boiler's internal computer experiences a major communication breakdown or a physical failure within its circuitry. The most common reason is that the electronic components on the main control board have worn out or suffered a voltage spike, preventing the boiler from safely managing the heating process.

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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Boiler cover options

Avoid the next call-out bill

A cover plan would handle faults like 41: no call-out fees, no surprise bills.

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All 118 fault codes on the Maximiser SE

Seeing a different code? Every code this model can display, in one place.

-. / A -. / H -. / Y -. H =. / H =. H 0 / A 0 / H 0 / Y 0 or -. / H 0A 0H 0L 0U 0Y 001 01 1 / C 1C 2 / C 2 / F 2 / P 2 / U 2C 2F 2P 2U 03 004 4 / A 4 / C 4 / F 4 / L 4 / P 4 / U 4 / Y 4A 4C 4F 4L 4P 4U 4Y 005 05 5 / A 5 / Y 5A 5Y 6 / A 6 / C 6 / H 6 / L 6A 6C 6H 6L 7 / A 7A 7C 7F 7H 7L 008 8L 9A 9C 9F 9H 9L 9P 9U 010 10 011 12 13 14 15 016 16 017 17 18 018 19 20 21 23 24 25 26 27 28 29 029 30 31 32 34 35 36 37 38 39 40 041 42 43 60 EA EC EF EH EL EP No display

Your boiler’s internal control system has encountered a critical electronic failure that it cannot clear itself.

What the manual says

What causes this fault?

Engineer required

Avoid the next call-out bill

All 118 fault codes on the Maximiser SE

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