If you could look at the readings, you would see most failures coming a season in advance. A capacitor measuring 8 percent under its rating in spring is the one that fails in the first heat wave. A system bleeding refrigerant through a pinhole leak keeps running, weaker each week, until the coil freezes solid. A furnace flame sensor fouls slowly and then locks the system out on a frigid night. That is the whole point of maintenance for Minneapolis, MN homeowners: find the problem while it is a trend, and fix it on a calm weekday instead of in an emergency.
Most of our service calls are for AC Repair and Furnace Repair. Start there if your system isn't running right.
Warning Signs for HVAC Maintenance
Catching these issues early helps you avoid costly problems. Keep an eye out for the following clues:
- A failure last year that seemed to come out of nowhere
- Filters you cannot remember changing, or a musty smell when the blower starts
- The system sounds different at startup than it did last season
- Utility bills rising even though nothing about your routine changed
- Nobody has opened up the system in over a year
- Longer run times to get to the thermostat setting
- A newer unit with warranty terms that call for regular professional service
- You simply have no idea what condition your equipment is actually in
Early Action Saves Money
Most HVAC failures start small, a weak capacitor, a squealing blower, a system that runs a little longer each week. If you notice any of these signs, call (763) 247-4119 for a prompt inspection.
