Furnace Installation
Replacement heating systems sized for your home, with venting and combustion air done to code.
Learn moreFurnace Repair
Furnace & Heating Repair
No-heat calls, short-cycling, ignition faults and blower problems on gas, propane and electric furnaces.
Heating faults tend to be either ignition-side or airflow-side. Ignition problems show up as a burner that lights and drops out — often a dirty flame sensor, a failing igniter or a pressure switch reacting to a blocked flue. Airflow problems show up as a furnace that overheats and trips its limit switch, usually because of a clogged filter, a failing blower or restricted return air.
Any furnace repair should include a look at combustion safety. A cracked heat exchanger or a blocked flue is a carbon monoxide risk, and it is not something to defer. If we find one, you will be told plainly what was found and what the options are.
If you smell gas, leave the building first and call your gas utility's emergency line from outside. Do not operate switches on your way out.
What the visit covers
- Ignition, flame sensor and gas valve testing
- Heat exchanger inspection for cracks and corrosion
- Limit switch, pressure switch and inducer diagnosis
- Blower motor and capacitor testing
- Carbon monoxide check around the appliance
Signs you need this
- The furnace blows cold air or nothing at all
- The burner lights then shuts off after a few seconds
- Repeated clicking, booming or grinding at start-up
- The blower runs constantly and never satisfies the thermostat
- A yellow rather than blue burner flame
24/7 Emergency HVAC Service
Call our main line and describe the problem — we will tell you the soonest we can be there.
Related
Often booked with this
Heat Pumps
Air-source and ductless mini-split systems that heat and cool from a single piece of equipment.
Learn moreMaintenance & Tune-Ups
Seasonal inspection and cleaning that catches small faults before they become a no-heat or no-cool call.
Learn more
Questions
Furnace Repair questions
Common questions about Furnace Repair. Anything else, call (602) 203-2395.
Not covered here? Ask us directly — describing the symptom over the phone is usually faster than reading about it.
(602) 203-2395That pattern — called short-cycling — usually means the furnace is overheating and tripping its limit switch, most often because of a clogged filter or restricted return air, or that the flame sensor is dirty and the burner is dropping out shortly after ignition. Replace the filter first, then have the sensor and airflow checked.
Heat pump supply air is cooler than furnace air — typically around 90–100°F, which is below body temperature and can feel cool at the register even though it is heating the house. Periodic defrost cycles, where the outdoor unit steams and the indoor fan pauses, are also normal in cold, damp weather.
Next step
Book Furnace Repair
Tell us the symptoms and we will bring the right parts on the first visit.
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