Even though San Diego winters are mild, those cool coastal nights can still make you reach for the thermostat. When your heater doesn’t perform like it should, it’s not just inconvenient, it can waste energy and money.
Here are five common heater problems local homeowners face and how to know when it’s time to call in an expert.
1. Uneven Heating Throughout the Home
Some rooms feel toasty while others stay chilly. Dirty filters, blocked vents, or duct leaks can reduce airflow and cause inconsistent heating. Start by replacing filters and making sure vents are open and clear.
Call a pro if: The problem persists, it could point to damaged ductwork or an aging system that needs balancing or repair.
2. Strange Noises Coming From the Heater
Rattling, banging, or squealing sounds could be caused by loose components, worn bearings, or blower motor issues. First assess the issue by checking for loose panels and securing them.
Call a pro if: The noises continue or get louder. Mechanical issues left unchecked can lead to system failure.
3. Short Cycling (Heater Turns On and Off Frequently)
If your heater runs for a few minutes, then shuts off repeatedly, this could mean you have a clogged filter, malfunctioning thermostat, or overheating system. This issue can be fixed by replacing the air filter and checking thermostat settings.
Call a pro if: The unit keeps short cycling—it may be overheating or need a safety sensor replaced.
4. Weak or No Airflow
If your system turns on, but the air coming out feels weak or barely there, this may be caused by dirty blower fans, duct blockages, or motor issues. First change the filters and make sure nothing is blocking air returns.
Call a pro if: There’s still poor airflow. A technician can check for a failing blower motor or clogged ducts.
5. Rising Energy Bills
Do your bills climb even though your usage hasn’t changed? An inefficient or aging system working harder to maintain temperature could be the problem. Start by replacing filters, check thermostat programming, and seal drafty windows.
Call a pro if: Bills stay high, it could be time for a tune-up or an energy-efficient system upgrade.
Keep Your Coastal Home Warm and Efficient
A little maintenance goes a long way toward avoiding heater headaches. Regular filter changes, seasonal tune-ups, and airflow checks help keep your system running efficiently all winter.
If you notice persistent issues like uneven heating, strange sounds, or higher bills, it’s best to call an HVAC professional before small problems turn into costly repairs.
