Furnace Repair in Martinsville, IN
Furnaces here run from October through May. If yours quits, tell us what it's doing and a licensed contractor who covers Morgan County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat wears a furnace down
Martinsville needs heat from October through May. That is eight months of the year your furnace is cycling on to fight off nights that average 23°F. Every one of those starts puts wear on the igniter and the ignition control, and over enough winters, one of them stops working. You will notice it as a furnace that tries to start and cannot, or one that runs a moment and quits.
Morgan County has also seen 36 damaging wind events and 10 winter storms over the past ten years. A hard freeze paired with a power blip is a common way a furnace fails right when you need it most. Statewide, 17% of households lost power for a full day or more in 2024, and a furnace that comes back on after an outage does not always come back on working right.
- 8 months
- October through May, your furnace is on duty
- 23°F
- the average winter night it heats against
- 10 winter storms
- in ten years, the nights a failure hurts most

NOAA nClimDiv, 1991–2020 normals
In Indiana, HVAC licensing for homes is left to the counties and cities.
Morgan County sets its own rule on who can do HVAC work, separate from anything the state requires. Indiana has no state HVAC license, so there is no state test behind any contractor's name and no state list to check. Whether Morgan County or a nearby city licenses or registers contractors is a local matter, and it depends on where the house sits rather than on any statewide standard.
On a furnace repair, that means the license itself is not what stands behind the work here, because Indiana does not issue one. The gas connection is the part of this job that matters most if it is done wrong, and no state license backs up who is allowed to touch it. What protection exists comes from whatever rule Morgan County or its cities have set for HVAC contractors, not from the state of Indiana.
Sources: Indiana Department of Workforce Development · State of Indiana
- Why won't my furnace turn on?
- Start with the thermostat. Check that it's set to heat and the temperature is set above room temperature, and check the batteries if it has any. If the thermostat looks fine, check your breaker panel, since a tripped breaker will shut the whole system down. Furnaces also won't fire if the air filter is badly clogged or if the flame sensor is dirty, since both are safety cutoffs built into the system. If none of that gets it running, a contractor needs to look at the igniter, the pressure switch, or the control board.
- Why is my furnace blowing cold air?
- Most often this means the furnace hasn't started heating yet and the blower is just moving air through the ducts before the burners kick in. If it keeps blowing cold air for more than a few minutes, check your filter, since a clogged one can cause the system to overheat and shut the burners off while the fan keeps running. It can also mean the igniter isn't lighting the burners at all. With nights averaging 23°F here from December through February, a furnace stuck blowing cold air needs attention quickly, so a contractor should check it the same day if possible.
- Why won't my furnace pilot light stay lit?
- This usually points to the thermocouple, the small sensor that tells the gas valve the pilot is burning. When it wears out or sits out of position, it reads the flame as out and shuts the gas off, even though the pilot lit fine a moment ago. A draft blowing across the pilot or a dirty pilot orifice can cause the same problem. Relighting it yourself may work for a night, but if it keeps going out, the thermocouple or gas valve needs to be checked by a contractor rather than relit over and over.

