ACV Switch black 22x30 dbl.inv 6tabs 54766013

The ACV Switch black 22x30 dbl.inv 6tabs (SKU 54766013) is a genuine ACV control system component used in boiler and burner systems. It is a manual switch with a black housing, dimensions 22x30 mm, and six tabs for connection. This switch is designed for low-voltage signals and mains supply, and it is compatible with ACV HeatMaster 45 TC Smart ME Prestige Excellence MKII models. It allows manual interruption of a control circuit, ensuring precise mode switching in compatible ACV boilers.

When selecting a replacement switch of this type, ensure the contact configuration, pitch, and keying match the original. The number and arrangement of tabs must correspond to the existing wiring harness. Verify the electrical rating is suitable for the voltage and current in the circuit. The insulation temperature class should be appropriate for the environment inside the appliance cabinet, especially near heat sources.

Connector faults, including those in switches, can cause intermittent electrical issues in boiler and burner systems. Symptoms may include erratic flame detection, fan run-on, lockout without obvious cause, or complete failure to start. These can mimic a faulty control board, broken sensor, or safety chain interruption. During fault finding, test the continuity and contact resistance of the switch before replacing more expensive components.