HVAC Repair in Belfast, ME
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 Waldo County will get in touch.
Tell us about the job
It takes about a minute.
Nine months of heat, one month of cooling, and a grid that doesn't always hold
Your furnace in Waldo County works most of the year, from September through May. On the coldest nights, when the temperature drops to 14°F, it runs long and often to keep the house warm, and that cycling wears on the igniter and the burner. Over half the homes here heat with fuel oil, which means the oil burner and its nozzle take that load, not a gas valve.
Summer asks less of the system. Afternoons average 76°F, and cooling season is short, so the AC or heat pump sits idle most of the year and then has to start up reliably when July comes. The bigger risk here is the power. Storm records show 79 winter storms and 34 damaging wind events over the last ten years, and more than half of Maine households lost power for a full day or more in 2024. When the power drops, an oil furnace with an igniter won't restart on its own once it's back, and a heat pump or AC needs someone to check it before it's asked to run again.
- 9 months
- September through May, your system heats
- 1 months
- July through July, it cools
- 14°F
- the average winter night it heats against
- 76°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
- Why is my heat not working?
- The most common cause is a simple one before it's ever the furnace itself. Check the thermostat first, make sure it's set to heat and the batteries aren't dead. If you heat with fuel oil, check the tank level, since running dry is a common reason for a sudden loss of heat here. If the thermostat calls for heat and nothing happens, the igniter or a safety switch may be at fault, and that's a job for a contractor to diagnose.
- Why is my system running but not cooling the house?
- If the blower runs but the air isn't cold, check the filter first. A clogged filter chokes airflow across the coil and can cause it to ice up, which stops it from cooling the air at all. If the filter is clean and you still get warm air, the coil could already be frozen or the system could be low on refrigerant, and either one needs a contractor to look at it.
- What can I check before calling for HVAC repair?
- Start with the thermostat. Make sure it's set correctly, the batteries are good, and the display is actually responding to changes. Next check the filter, since a dirty one restricts airflow and can shut a system down on its own. Then check your breaker panel, since a tripped breaker looks like a dead system but takes seconds to fix. If the power's been out at your house recently, some systems need to be switched back on manually rather than restarting on their own, so check the unit itself if the breaker is fine.