BoilerFaultCodesIdeal L61 Fault Code
The Ideal L61 fault code means: your heat pump has detected an electrical fault within the wiring or the motor that drives the system, causing it to shut down to prevent damage.. It appears on 1 Ideal model in our database.
Technical description: Compressor Stall Error, Compressor Start Error, Compressor Terminals Short Circuit, and Compressor Error
What causes the Ideal L61 fault?
This fault occurs when the electrical current flowing to the heart of the heat pump is interrupted or takes a dangerous shortcut. It is most commonly caused by damaged internal wiring or an electrical failure within the compressor motor itself, which triggers a safety shutdown. Over time, vibration or moisture can wear down the insulation on these components, leading to this electrical malfunction.
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 L61 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ideal L61 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 7 July 2026