1. The Power’s Back, But Your Furnace’s Not
First move? Check the circuit breakers. When the grid flips out, your furnace might trip a breaker to avoid electrical chaos. Head to your panel, find the tripped switch, and flip it back. That might be all it takes.
Got an older setup? You might be dealing with a ground fault interrupter. That thing trips like a reflex during a surge. If you’ve reset your breaker and your furnace still isn’t turning on automatically, that GFI outlet may be the bottleneck. Call us — we’ll reset it clean and safe.
Need help now? Book your emergency furnace repair in Canton with Green Energy Mechanical — we’re local, fast, and built for moments like this..
2. Thermostat Failure After Power Outage
Thermostats can get scrambled during outages. Yours might’ve gone into safety mode, battery-drain mode, or just straight-up nap mode.
Here’s what to check:
Step 1: Check the Obvious — Is It Even On?
Let’s not overthink this. During an outage, especially if you’ve got a programmable or smart thermostat, it might shut off and stay off. Don’t assume it’ll fire back up automatically. Check the display. If it’s blank, let’s move to…
Step 2: Batteries Might Have Failed
A power outage drains backup batteries fast. If you haven’t changed them since the Patriots were in the playoffs, you already know what the problem is. Pop in a new set: alkaline, not the off-brand stuff, and see if the screen lights up.
This fixes thermostat not responding after power is restored issues more often than you’d think.
Step 3: Hard Reset — Thermostat's Stuck in Safety Mode
Even if the screen lights up, it might be stuck in a protective lockout. Most modern thermostats have a built-in safety sequence that kicks in when voltage gets weird — like during a blackout or surge.
Here’s how to break it out of that funk:
- Flip the breaker connected to your HVAC system off.
- Wait 30 seconds.
- Flip it back on.
- Watch the thermostat reboot like it just woke up from a coma.
If your furnace won’t kick on after you reset the thermostat, it might still be out of sync with the system. Some smart thermostats (Nest, Ecobee, etc.) need a full restart or even a Wi-Fi reconnection to behave properly.
Still no dice? Some smart thermostats get locked up in outage mode. Hit the manual or call us — we can reprogram it and make it behave.
Want to avoid this next time? Ask us about installing a smart thermostat — it syncs with your furnace and gives you a remote control when storms hit.
3. Your Furnace Needs a Manual Reset
This isn’t rocket science — but it’s close. Furnaces have a reset button (usually red or yellow) that tells the unit to get back to work.
Here’s how to do it:
- Flip the circuit breaker off, wait 30 seconds, and flip it back on.
- If you’ve got a gas furnace, turn off the pilot light. Let that gas clear.
- Hold the reset button down for 30 seconds.
Boom — you’re back in business. Unless you’re not. In that case, it’s time to call in the techs.
Need this handled now? Hit up Green Energy Mechanical for fast, local service. We handle gas furnace repair, emergency heat, and full HVAC system resets across Canton and nearby towns.
Prevention > Panic
If your furnace keeps failing after every outage, it’s trying to tell you something. Weak sensors, outdated wiring, or a faulty circuit board could be behind it. Let us inspect the whole system. We’ll test it, clean it, and get ahead of whatever’s next. Want a smarter heating setup? Ask us about boiler installation, furnace replacement, or upgrading to high-efficiency heating — because of this “no heat after an outage” routine. Yeah, that’s over.
Contact Green Energy Mechanical Inc. for First-Class Heating System Repair in Canton, Massachusetts
If your furnace is not working after a power outage and requires professional attention, contact Green Energy Mechanical Inc. Our team has vast experience fixing and preventing heating system failures and will breathe new life into your unit without stressing your budget. From repairing old gas furnaces to installing modern electric heating systems, no job is too big or too small for Green Energy Mechanical Inc.
Give Green Energy Mechanical Inc. a call at (781) 236-3421 and receive exceptional heating services in Canton, Massachusetts, today!
