Ideal Chip Card Evomax 100 176424

The Ideal chip card, supplied as a BCC kit under part number 176424, is a printed circuit board component used in Ideal Commercial boiler controls. It carries the boiler's operating data and communicates with the main control board, so the appliance can run its correct combustion and sequencing parameters. It is listed for the Evomax 100 and Instinct Heat 100 commercial ranges.

• The boiler locks out or fails to fire despite a healthy gas and water supply.
• Fault or error codes appear on the control display that point to the control board or chip card.
• The appliance runs intermittently, cutting out shortly after ignition.
• The boiler does not respond to the room thermostat, programmer or onboard controls.
• The display stays blank or the control panel behaves erratically after power is restored.

• Confirm the boiler model and GC number against the compatibility list, as the same appliance family can use different board variants.
• Check the existing chip card and control board for the part number printed on the component before ordering.
• Note the alternative number 1781900 when cross-referencing supplier or manufacturer listings.
• Work on boiler controls should be carried out by a competent engineer, with the appliance isolated from the electrical supply before any board is removed.