Ideal Wiring Harness Mains Voltage 179226

The Ideal 179226 is a mains voltage wiring harness supplied as a spare for Ideal gas boilers. It is the loom that carries mains supply between the boiler's electrical connection point and the internal control components, so the appliance can power up and run through its sequence.

The harness is listed by Ideal under the cables, leads and wiring harnesses category and is used across the Logic+ Heat range and Ideal Commercial appliances.

• The boiler is dead at the front panel with no display or indicator lights, despite a live supply at the isolator.
• Intermittent power loss or repeated shutdowns that trace back to a loose or damaged harness connector.
• Visible damage to the loom: chafed or cracked insulation, scorched or discoloured conductors, or a heat-affected plug.
• A connector that will not latch securely, or terminals that show signs of arcing or corrosion.
• Continuity testing across the harness shows an open circuit on one or more conductors.

• Confirm the appliance model and GC number against the compatibility list, as the same boiler family uses different looms across variants.
• Note the alternative part number 1777749 when checking against an existing harness or an older parts listing.
• Mains voltage work inside the boiler must be carried out by a competent person; isolate the electrical supply at the fused spur before removing or refitting the harness.
• Inspect the mating connectors and any retaining clips on the appliance side, as these are often disturbed during removal.