replacing brittle or flattened 96451 isolators is a primary troubleshooting step when a unit heater is producing disruptive mechanical noise or cabinet rattle

This OEM replacement gasket is physically and technically identical to ARM1010 (previously 100133544)

Durable Construction: Features high-grade insulation and a terminal connector designed for HVAC sensor troubleshooting and vibration resistance

or the motor failing to turn over despite receiving power

Weil McLain 383-500-604 Fuses replacing brittle or flattened 96451The Weil McLain 383 500 604 is a critical 12A slow blow fuse designed specifically for the protection of advanced control modules in condensing gas boilers. For service technicians troubleshooting a blank display or a non responsive Ultra U Control module, these high amperage glass fuses are the standard requirement to safeguard line voltage circuits against transient surges without premature tripping. Unlike standard fast acting alternatives, the