The Schererville furnace that hums and does nothing
You hear it from upstairs: a steady hum from the furnace. The thermostat says it’s calling for heat. But when you put your hand over a vent, nothing. Or the burners light, the metal ticks as it heats up, and the fan never comes on. Then it shuts off and tries again.
That’s one of the most common winter calls we take in Schererville, and it often ends with a small bill. The usual suspect is the blower capacitor, a part about the size of a soda can that helps the blower motor start. When it fails, the motor just hums in place.
How we find the actual problem
- You call and a real person answers. Day or night. We tell you the diagnostic fee up front.
- We test, not guess. The tech checks the capacitor with a meter and measures how hard the motor is working.
- We look past the obvious part. If the motor is also failing, you hear about it now, not two weeks from now.
- Price on paper. The repair is written down and agreed before a wrench turns.
- The bill matches. No surprise line items at the end.
That third step is the one people appreciate. Swapping a capacitor on a motor with worn bearings gets you through a week. Testing the motor first tells you if you’re looking at one repair or two, and you get to decide which.
Schererville houses, and where the furnace hides
Schererville grew up around the spot where US-30 and US-41 cross, and the housing mix shows it. There are split-levels and ranches from the 1970s and 1980s, newer subdivisions, and plenty of townhomes and condos. In a split-level the furnace might be on the lower level next to the laundry. In a townhome it’s often in a closet or the garage.
We work in all of those spaces. A tight closet takes a few more minutes, and we’ll tell you that ahead of time. It doesn’t change the agreed price.
Repair or replace? Look at the numbers.
Somebody may already have told you the furnace is too old. “15 years old” is not a diagnosis. A furnace with a bad capacitor needs a capacitor. A cracked heat exchanger is a different story, and if we find one, we’ll show you.
Our techs aren’t on commission, so there’s nothing in it for them if you buy a new system. When the repair would cost more than the furnace has left in it, you see the repair price and the replacement price on the same sheet. Want a head start? Read whether a 15-year-old furnace is worth fixing.
Why capacitors fail in the first place
Capacitors wear out with heat and age, and a power surge or a blower motor that’s working too hard can speed that up. A clogged filter makes the motor strain every time it starts. So when we replace a capacitor, we also check the filter, the blower wheel for dust buildup, and the motor’s amp draw. If something upstream is shortening the capacitor’s life, you’ll hear about it. That’s the difference between a repair that lasts and one that brings us back next month.
Other signs worth a call
Call if the furnace blows cold air, turns on and off every few minutes, clicks without lighting, or starts squealing or rattling. A blinking code on the control board, a tripped breaker, or a burning smell that lasts past the first day of the season all deserve a look. If you smell gas, leave the house and call NIPSCO or 911 from outside. If a carbon monoxide alarm sounds, get out and call 911.
Heat out now? Call (219) 555-0142. Otherwise, send the quote form below. We also handle furnace repair in Dyer and furnace repair in Merrillville, along with the rest of our service area. For the bigger picture, see furnace repair.
