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

or the motor failing to turn over despite receiving power

Standardized terminal connectors eliminate the need for field splicing

For fan-on applications

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

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