HVAC Repair in Castle Rock, CO
Homes here need heat from September through May and cooling from July through July. If your system quits, tell us what it's doing and a licensed contractor who covers Douglas County will get in touch.
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It takes about a minute.
Nine months of heat, one month of cooling, and a lot of wear in between
Castle Rock needs heat from September through May. On winter nights that average 17°F, the furnace runs long and starts often, and every start puts load on the igniter and the blower motor. Most homes here heat with gas, so a cracked heat exchanger or a failed igniter means no heat on a night that cold, not a minor inconvenience.
Summer is short here, just July, with afternoons averaging 81°F. The air conditioner does not run long enough in a year to wear out on its own, but that also means a refrigerant leak or a weak capacitor can sit unnoticed until the first hot day, when the system has to work and does not. Wind and winter storms are common in Douglas County too, and with them come power interruptions. Most furnaces and air conditioners come back on by themselves once power returns, but a system already struggling with a worn part may not recover the same way.
- 9 months
- September through May, your system heats
- 1 months
- July through July, it cools
- 17°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 $110 a year off heating and cooling for a typical Douglas County home.
Estimates for a typical Douglas County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Colorado 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.
- Why is my heat not working?
- Start with the thermostat. Make sure it is set to heat, not just fan, and that the temperature you want is a few degrees above the room. If the thermostat looks right, check the breaker for the furnace and the switch that looks like a light switch near the unit, since that shuts it off too. A furnace that still will not start after that usually has a problem with the igniter or the flame sensor, and those need a contractor to check. With winter nights here dropping to 17°F on average, it is worth getting this looked at the same day rather than waiting.
- Why is my system running but not cooling the house?
- Check the air filter first. A filter clogged with dust blocks airflow across the coil and the air coming out of your vents will feel weak or barely cool. Next, look at the outdoor unit and clear away any leaves, grass clippings, or debris sitting against it, since it needs open air around it to work. If the filter is clean and the outdoor unit is clear but the house still is not cooling, the system may be low on refrigerant or have a failing part, and that calls for a contractor with gauges to find out.
- What can I check before calling for HVAC repair?
- Check the thermostat batteries and settings, then check the breaker panel for a tripped breaker. Look at the air filter and replace it if it is gray or clogged, since a dirty filter can cause problems that look like bigger issues. For a furnace, check that the switch near the unit is flipped on. If the system still is not working after that, a contractor will need to look at it directly, and telling them what you already checked helps them get to the answer faster.