HVAC Repair in Oak Ridge, TN
Homes here need heat from October through April and cooling from May through September. If your system quits, tell us what it's doing and a licensed contractor who covers Anderson County will get in touch.
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Oak Ridge asks a lot of your system, in both directions
Your furnace runs from October through April here, and the air conditioner takes over from May through September. There is almost no month where one of them is not working.
Winter nights averaging 30°F mean the burner is cycling on and off for hours at a stretch, and each start wears on the igniter and the parts that light it. Summer afternoons near 85°F push the other direction, keeping the compressor under steady load through the warm months. Anderson County has also logged 42 damaging wind events and 6 winter storms over the past ten years, and 56.6% of homes here heat with electricity, so a power outage during a storm can mean no heat at all until it is back on.
- 7 months
- October through April, your system heats
- 5 months
- May through September, it cools
- 30°F
- the average winter night it heats against
- 85°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
- Why is my heat not working?
- Start with the thermostat. Make sure it is set to heat and the temperature is set above the room temperature, since a setting bumped a degree or two can look like a dead system. Check your breaker panel next, since a tripped breaker will shut the whole system down with no warning, and electric furnaces and heat pumps both stop cold when that happens. If the breaker is fine and the thermostat is set right, check the air filter. A filter clogged with dust can choke off airflow badly enough that the system shuts itself off to protect the heat exchanger. If none of that explains it, the igniter, a flame sensor, or a control board may have failed, and that needs a contractor to diagnose.
- Why is my system running but not cooling the house?
- If the blower is running but the air coming out is not cold, the problem is usually with the outdoor unit or the airflow, not the fan itself. Check the air filter first. A dirty filter starves the coil of airflow, and a starved coil can freeze up and stop cooling the air at all. Go outside and look at the condenser. If the fan is not spinning or the coil is caked with dirt and grass clippings, it cannot shed the heat it is pulling out of your house. On an 85°F afternoon here, a system already working near its limit will struggle even more with restricted airflow. If the filter is clean and the outdoor unit looks clear but the house still is not cooling, the refrigerant charge or the compressor itself likely needs a contractor to check.
- What can I check before calling for HVAC repair?
- Check the thermostat settings first, since the wrong mode or a battery running low can look exactly like a broken system. Check the breaker panel next and reset any tripped breaker once. Pull the air filter and hold it up to a light. If you cannot see light through it, replace it, since a blocked filter causes both heating and cooling problems. Outside, clear leaves, grass, or ice away from the condenser or heat pump unit so air can move through it. This area has seen 6 winter storms and 42 damaging wind events over the past ten years, so it is worth checking outdoor units for storm debris before anything else. If the system still is not working after that, a contractor will need to look at it directly.