Ideal LV Harness Super Ser 4 100893

The Ideal 100893 is a low voltage (LV) wiring harness supplied for Ideal Commercial boiler appliances in the Super Ser 4 range. It carries low voltage control and sensing signals between the boiler's main control board and the components it regulates, so the appliance can sequence ignition, monitoring and shutdown correctly. As a factory harness it is terminated to match the connector layout of the Super Ser 4 platform, which keeps replacement straightforward for an engineer working on site.

• Intermittent lockouts or fault codes that clear and return without an obvious cause
• The boiler failing to run through its start sequence, with the control board showing no signal from a component
• Visible damage to the harness: chafed, brittle or heat-affected insulation, or exposed conductor
• Loose, corroded or partially seated plugs at either end of the run
• Faults that appear or disappear when the loom is moved by hand

• Confirm the appliance model and serial number against the compatibility list before ordering, as harness layouts differ between Ideal Commercial ranges
• Compare the connector count and plug shapes on the existing harness with the part number quoted here
• Isolate the electrical supply and follow the manufacturer's wiring diagram when fitting a replacement harness