Pennsylvania Heating
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Furnace Repair in Indiana, PA

Tell us about the job

Takes about a minute. No obligation.

Step 1 of 3: Equipment

Eight months of run time

Furnaces here run from October through May. That's most of the year asking the igniter, the blower motor and the heat exchanger to cycle on and off without a long break to sit idle.

Long runs wear parts faster

A furnace that runs eight months a year sees more cycles than one that only runs three or four. Whatever is acting up in your furnace right now, have it diagnosed properly rather than patched, so the fix holds for the rest of the season.

8 months
October through May, your furnace is on duty
21°F
the average winter night it heats against
55%
of homes here heat with gas, so most furnaces here burn gas
2 winter storms
in ten years, the nights a failure hurts most
Isometric cutaway illustration of a single-story house with a dark shingled roof, showing interior rooms with furniture, ductwork, a flue pipe, and a furnace unit.
Your furnace works hardest from November through March.

NOAA nClimDiv, 1991–2020 normals

A cracked heat exchanger gets worse every time the burners fire.

Once that crack is there, running the furnace on a bad exchanger isn't a wait and see situation.

Half the furnaces here are as old as the houses

Half the homes here were built by 1970
Heat runs October through May
Winter nights average 21°F
October Is When Weak Furnaces FailHeat goes on in October here, and whatever was already weak shows up fast.

A repair makes sense when the problem is isolated and the rest of the furnace is sound. A new flame sensor, a new igniter, a new blower capacitor, these are normal wear items, and replacing one doesn't tell you anything bad about the unit as a whole. What changes the math is the heat exchanger or a cracked or corroded cabinet, because those aren't wear items, they're the furnace itself giving out. A tech who's been inside the unit can tell you which kind of problem you have. If they're hesitant to commit to a repair, or if the same part has failed more than once, that hesitation is information. A furnace near the end of its expected life that needs a major part isn't a good candidate for that part, even if the part itself is fixable.

Know what you're repairing before you pay for it

A tech can tell you in one visit whether this furnace has years left or not. Get that answer before you pay for the part.

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A gas furnace with attached ductwork, gas piping, and condensate lines installed in a concrete-block basement.

The Hours Add Up to Something Specific

Eight months of heat, every year, is a lot of hours on one machine. When something in your furnace starts acting up now, it's usually because those hours caught up with a specific part, not because the whole unit quit at once. That's worth knowing before you pay for anything. Get the actual cause named, then fix that, so you're not back here again before spring.

What you can check yourself

Look at the thermostat first. Make sure it's set to heat and set above room temperature, and check the batteries if it uses them. Go to the furnace and look at the filter. A filter clogged with dust blocks airflow and can shut the whole system down as a safety measure. Check that the switch on or near the furnace is in the on position, since it looks like a light switch and gets bumped or turned off by mistake. If the furnace is in a closet, make sure nothing is blocking the door or vents.

What to leave alone

Don't open the burner compartment or touch the gas valve. If you smell gas, leave the house and call the gas company from outside, not the furnace repair line. Don't reset the switch or breaker more than once if it trips again right away, since that's the system telling you something is wrong downstream. A furnace that starts and shuts off repeatedly, or that smells like burning dust only briefly at startup, is normal. A smell that lingers, or any soot near the unit, means stop and call someone.

A gray forced-air furnace with metal ductwork stands in an unfinished basement with exposed wooden joists, concrete walls, and a single hanging light bulb.

A new furnace would cut about $170 a year off heating for a typical Indiana County home.

  • A new high-efficiency furnace$670 a year
  • An older furnace$840 a year

Estimates for a typical Indiana County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Pennsylvania fuel prices and NOAA climate normals. Your home will differ.

Repair makes sense when one part has failed and the heat exchanger is sound.

Replacement makes sense when the heat exchanger is cracked or the furnace keeps needing parts.

A diagnostic visit starts with questions. When it acts up, what it sounds like, whether the air coming out is warm or cold, how long it's been doing it. Then the tech pulls the cover and checks the easy things first: the filter, the flame, the pressure switch, the flame sensor. They'll run the furnace through a full cycle if they can, start to finish, because some problems only show up partway through, not the moment it kicks on. A pressure reading or a look at the flame color tells them things a visual check alone won't. If there's a code stored in the control board, they'll pull that too. By the end they should be able to point to the one part causing the problem, not just guess at a list of possibilities. That's the difference between a diagnosis and someone replacing parts until something works.