Heating · Detroit, MI
Furnace Repair in Detroit, MI
Most furnace no-heat calls are a dirty flame sensor, a failed hot surface igniter, a tripped limit or pressure switch, or a clogged filter. A tech reads the board's error code, tests each safety device, and checks for carbon monoxide before handing it back.
- Same-day appointments when available
- Licensed HVAC contractors
- Written price before any repair
Detroit
Furnace Repair in Detroit: what's different
Detroit furnaces work hard through long, snowy winters. Many homes have older gas furnaces in basements that have been replaced several times without venting updates, so repairs often include checking chimney liners and draft.
Common repairs include igniters, flame sensors, inducer motors and control boards. Annual carbon monoxide checks are especially important with older equipment.
Ask the tech to check the chimney liner if your water heater still vents into the old masonry chimney. When older furnaces are replaced with high-efficiency models, the water heater may need a new liner to vent safely. Also make sure the outdoor intake and exhaust are kept clear of snow.
Detroit climate
Cold winters with lake-effect snow, warm summers.
Symptoms
Signs you need furnace repair
- Cold air from the vents in heat mode
- Burners light then shut off after a few seconds
- Blinking LED code on the control board
Process
How the Furnace Repair visit works in Detroit
- 1
Read the fault code
- 2
Test ignition and safeties
- 3
Combustion and CO check
- 4
Repair and run test
Cost factors, safe DIY checks and equipment details are in the full furnace repair guide.
FAQ
Furnace Repair questions
Is my old Detroit furnace safe?+
Older furnaces should be inspected each year for cracked heat exchangers and venting problems. A CO test is part of a proper inspection.
Why does my furnace turn on then off right away?+
The most common reason is a dirty flame sensor, which can't prove the flame so the board shuts the gas off. Other causes are a weak pressure switch or a blocked vent.
Is a cracked heat exchanger dangerous?+
It can be, because it may let combustion gases mix with house air. A tech will usually shut the furnace off and red-tag it until it is repaired or replaced.
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