HVAC Repair in Waldoboro, ME
Homes here need heat from September through May and cooling from July through August. If your system quits, tell us what it's doing and a licensed contractor who covers Lincoln County will get in touch.
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Nine months of heat, two months of cooling, and a grid that doesn't always hold
Your furnace runs September through May here. Winter nights average 16°F from December through February, so on the coldest ones the burner is cycling on and off most of the night to keep up. More than half the homes in Waldoboro heat with fuel oil, and an oil furnace that short cycles like that wears on the igniter and the nozzle faster than one that runs steady.
Then summer flips the problem. Your AC only gets two months, July and August, with afternoons averaging 75°F. A system that sits idle ten months a year and then gets asked to work can fail on the first hot day just from sitting. And when a storm knocks the power out, which happens often enough in Maine that more than half of households lost power for a day or more in 2024, whatever was running when the lights went out has to come back on its own.
- 9 months
- September through May, your system heats
- 2 months
- July through August, it cools
- 16°F
- the average winter night it heats against
- 75°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
- Why is my heat not working?
- Check the thermostat first. Make sure it's set to heat and the temperature is set above room temperature, since a low battery or a setting bumped by accident stops the system before it starts. If the thermostat looks right, check the breaker and any switch that looks like a light switch near the furnace, since that shuts the whole unit off. Fuel oil systems here need oil in the tank, so a run of cold weeks can mean a delivery is due. If power to your area went out during a storm and the system never restarted, that can also leave the furnace dead until someone resets it. Waldoboro winters run cold enough, averaging 16°F at night, that a furnace with no heat needs attention fast, so if the basics check out and it's still not firing, get a contractor out.
- Why is my system running but not cooling the house?
- If the blower is running but the air isn't cold, check the air filter first. A clogged filter chokes airflow across the coil, and the coil can ice over as a result, which stops it from pulling heat out of the air at all. Check that nothing is blocking the outdoor unit, like leaves or grass clippings packed against the coil. If the filter's clean and the outdoor unit is clear but the air still isn't cold, the system likely needs a contractor to check refrigerant level and the coil itself.
- What can I check before calling for HVAC repair?
- Start with the thermostat. Confirm it's set to the right mode, heat or cool, and that the set temperature is actually past the room temperature. Check the breaker for the system, and if you have a furnace, check the power switch near it too. Look at the air filter and replace it if it's dirty, since a clogged filter causes problems on both the heating and cooling side. For an oil furnace, check the tank gauge, since it won't run on an empty tank. If everything checks out and the system still isn't working, a contractor will need to look at it directly.