Premium Quality: The replacement part is made from durable high-quality material and well-tested by the manufacturer - It meets OEM standards - Ensures long-lasting and effective performance.

HH18HA416 Furnace Limit Switch:

The HH18HA416 Furnace Limit Switch is a normally closed temperature safety switch usually around 200°F (93°C). When this preset temperature is reached, the switch interrupts power to the furnace heating elements or gas valve, helping prevent overheating and potential system damage. This HVAC limit switch is commonly installed near the heat exchanger and plays a critical role in maintaining furnace safety and efficiency.

Installation Instructions:

Before installation, turn off power to the furnace at the circuit breaker or fuse. Remove the mounting screws or clips securing the old limit switch using a screwdriver or pliers. Carefully disconnect the wires and remove the old switch. Install the new HH18HA416 limit switch in the same position, secure it firmly, reconnect the wires, and restore power.

Fixes Common Issues:

Resolves problems such as furnace overheating, inconsistent heating, frequent shutdowns, or failure to operate caused by a faulty or worn limit switch.

Protects Against Overheating:

Automatically shuts down the furnace when unsafe temperatures are detected, protecting critical components and enhancing home safety.

Replaces Part Numbers:

95-314679, 95314679, HH18HA216, HH18HA215, HH18HA416, 2347659, 00662441983443, 316418401, 318198932, AP4556791, PS2581859