Furnace Limit Switches
High limit switches shut the burners down when the heat exchanger overheats. A switch that trips repeatedly is usually doing its job -- check the filter and airflow first.
0 products· filtered by 4 ton
Brands We Carry
Ready to Stop Overpaying?
Factory-direct pricing on every unit. No salespeople. No pressure. No hidden fees.
(888) 762-1334Mon - Sat 7am - 8pm CT









