Limit SwitchEmergency Replacement
The limit switch monitors furnace temperature and shuts down if it overheats. A faulty switch causes frequent shutdowns.
Warning Signs You Need Limit Switch Replacement
Urgency: Emergency Service Required
A faulty limit switch causes inconsistent heating. Emergency diagnosis ensures safe operation.
Why Choose Our Emergency Parts Service
Priority Response
We prioritise emergency calls and get parts to you fast
Licensed Technicians
TSBC LGA0202903 licensed & WCB insured
Same-Visit Repair
We carry common parts for first-visit fixes
Related Furnace Parts
Furnace Heat Exchanger
The heat exchanger transfers combustion heat to your home's air. A cracked heat exchanger can leak carbon monoxide and requires immediate emergency replacement.
Furnace Blower Motor
The blower motor powers the fan that circulates warm air. A failed blower motor means no heat reaches your rooms, requiring emergency replacement.
Furnace Ignitor
The ignitor lights the gas burners. A failed ignitor prevents the furnace from firing, leaving you without heat.
Flame Sensor
The flame sensor detects the burner flame and keeps the gas valve open. A dirty or faulty sensor causes short cycling.
Furnace Gas Valve
The gas valve regulates fuel flow to the burners. A malfunctioning valve can prevent ignition or cause unsafe conditions.
Furnace Thermocouple
The thermocouple senses the pilot flame and signals the gas valve to stay open. A failed thermocouple causes the pilot to go out.
Need Emergency Limit Switch Replacement?
Our emergency technicians are ready to restore your furnace right now