Minnesota winters are tough enough without the power going out. When heavy snow, ice, or extreme cold brings down power lines, your home’s HVAC system can take the hit, especially when electricity flickers on and off again. These rapid changes can strain or damage furnaces, air handlers, and heat pumps long before you realize something is wrong.
At Standard Heating & Air Conditioning, we’ve helped Twin Cities homeowners stay safe and comfortable through every kind of winter storm since 1930. Here’s what you should know about protecting your HVAC system from surge damage, outages when the weather takes a turn.
What Power Surges Do to HVAC Equipment
A power surge is a sudden spike of electricity, often caused by:
- Power restoration after an outage
- Ice, wind, or fallen branches hitting power lines
- A generator cycling on or off
- Nearby lightning strikes
Even a brief surge can damage HVAC components such as:
- Furnace or air handler control boards
- Blower motors
- Heat pump compressors
- Smart thermostats
How Smart Thermostats Handle Outages
Smart thermostats offer convenience and energy savings, but they rely on stable power and internet. During outages, they may reboot, lose Wi-Fi, or forget certain settings.
To avoid issues:
- Keep backup batteries installed
- Give your HVAC system a few minutes to stabilize before adjusting settings
- Reconnect to Wi-Fi after power returns
- Reboot the thermostat if needed
A short waiting period prevents unnecessary errors or system resets.
How to Safely Restart Your HVAC System After an Outage
When power returns, avoid turning on your heat immediately. Instead, take these steps:
- Turn your thermostat off until power stabilizes
- Check circuit breakers
- Clear snow or ice from your outdoor heat pump unit
- Turn the thermostat back on and set it to heat
If the system doesn’t start, or you hear unusual noises or smells, turn it off and call a professional.
Prepare Your HVAC System Before the Next Winter Storm
Minnesota winters are unpredictable, but your HVAC protection doesn’t have to be. Surge protection and smart restart steps can prevent costly repairs and keep your home comfortable. At Standard Heating & Air Conditioning, we help Minneapolis and St. Paul homeowners stay prepared for whatever winter brings. Contact us today if you would like a service visit, we are here when you need us!
