When the heat stops, it's usually one of a handful of parts. Here's what our technicians fix most often.
Ignitor and flame sensor
A cracked hot surface ignitor won't light the burners. A dirty flame sensor lights them, then shuts them off seconds later. Both are quick repairs.
Blower motor and capacitor
If the furnace runs but no air comes out — or it hums — the blower motor or its capacitor is a likely cause.
Limit switch and dirty filters
A clogged filter overheats the furnace and trips the high-limit switch, making it cycle on and off. Always check the filter first.
Frequently Asked Questions
+Is furnace repair available 24/7?
Yes — Grove answers emergency heating calls around the clock.
+What should I check before calling?
Thermostat settings and batteries, the furnace switch, the breaker and the filter.
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