9.1.4 High

Ideal 9.1.4 Fault Code

Also written as 914 — same fault.

The Ideal 9.1.4 fault code means: your heat pump's external unit is unable to talk to the control panel inside your home, meaning the system cannot receive instructions to provide heating or hot water.. It appears on 1 Ideal model in our database.

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.

Technical description: No connection Outdoor PCB to User Interface

What causes the Ideal 9.1.4 fault?

This fault occurs when the physical wiring link between the outdoor unit and the indoor controller is broken or interference is blocking the signal. The most common reasons are loose wiring connections at either end, damage to the communication cable, or a internal electronic failure on one of the circuit boards. Without this data link, the system cannot send commands to start the fan or compressor.

This fault can sometimes appear after heavy storms or high winds if debris or movement has disturbed the external wiring connections.

Typical repair cost £180-450 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Ideal models that show the 9.1.4 fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Ideal 9.1.4 fault code information on this page is sourced and cross-checked against the official Ideal service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026