HVAC Repair in Whitewater, WI
Homes here need heat from October through May and cooling from June through August. If your system quits, tell us what it's doing and a licensed contractor who covers Walworth County will get in touch.
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Eight months of heat, three of cooling, and not much rest between
Your furnace in Whitewater runs from October to May. On the coldest nights, when the temperature drops to 16°F, it starts and stops more times a day to keep the house warm, and every start wears on the igniter and the parts that get the burner lit. When one of those parts finally gives out, the house goes cold on the night you need it least.
Summer is shorter here, three months of afternoons near 81°F, but your air conditioner still has to keep up on those days. Most homes here heat with gas, which means two different systems, each with its own way of failing. Walworth County has had its share of winter storms and damaging wind, and in Wisconsin, 18% of households lost power for at least 24 hours in 2024. A furnace or air conditioner that will not restart on its own once the power comes back is its own kind of problem.
- 8 months
- October through May, your system heats
- 3 months
- June through August, it cools
- 16°F
- the average winter night it heats against
- 81°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $120 a year off heating and cooling for a typical Walworth County home.
Estimates for a typical Walworth County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Wisconsin fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed.
Replacement makes sense when the furnace's heat exchanger is cracked, the air conditioner's compressor has failed, or repairs keep coming.
Wisconsin requires contractors to register with the state.
Registering with the Department of Safety and Professional Services puts a contractor's business on file with the state. There is no trade exam behind that number and no work checked against a standard before it is issued. It tells you the business exists on paper. It does not tell you who is good at this job. Wisconsin also keeps counties and cities from setting their own HVAC license rules, so this registration is the only state-level record you will find, no matter where in Walworth County the work is done.
For a repair on your heating and cooling system, that registration number is not what stands behind the work. Wisconsin has no trade exam and no license standing behind it, only the business record itself.
Sources: Wisconsin Legislative Reference Bureau · Wisconsin Department of Safety and Professional Services
- Why is my heat not working?
- The most common cause is an igniter or flame sensor that has stopped reading properly, especially in a gas furnace, which is how most homes here heat. If the thermostat screen is blank or the furnace won't respond at all, check the breaker first. A furnace that runs but blows cold air often has a bad igniter or a clogged filter starving it of air. At 16°F on a winter night, don't wait on this. A contractor can pin down which part failed.
- Why is my system running but not cooling the house?
- If the blower is running but the air isn't cold, the outdoor unit may not be running at all, or the refrigerant charge is low. Go outside and check whether the outdoor unit's fan is spinning. If it's not moving and the indoor blower is, that points to a capacitor or a control board issue outside. A dirty filter can also choke airflow enough that the house never catches up on an 81°F afternoon. Either way, a contractor will need to check refrigerant pressures and electrical readings to know for sure.
- What can I check before calling for HVAC repair?
- Check the thermostat first. Make sure it's set to heat or cool as needed and that the batteries aren't dead. Check the breaker panel for anything tripped. Pull the filter and hold it up to a light. If you can't see through it, replace it, since a clogged filter alone can cause weak heat, weak cooling, or a system that won't run at all. If the outdoor unit is buried in snow or debris, clear space around it. If none of that changes anything, a contractor will need to look at the equipment itself.