Why Does My Furnace Keep Turning Off?


Usually, your gas heater should cycle on and off 3-8 times hourly, preserving a comfy temperature level in your house. But a heater that keeps shutting down every minute or 2 won't heat your home properly. Not just that, it may be signifying a larger issue that you need to take care of.

So don't simply sit there and shiver. Repair what's wrong with your heater and learn how to repair it.

1. Heater Airflow Is Obstructed

Your heater's heat exchanger requires an excellent circulation of air to cool it down. If the airflow is obstructed, the heat exchanger will overheat, triggering the safety shutdown. That will safeguard your heater but leave you in the cold. Fortunately, this is easy to solve.

Change The Filter

Your heater's air filter gets clogged with dirt and dust gradually, restricting airflow to the furnace. If you see your filter is obstructed, all you have to do is alter or clean it.

Change a non reusable filter. Replacements are economical and easily offered, so stock on a couple of spares.

Clean a recyclable filter. These https://furnace-repair-vaughan.com are higher quality, but require an occasional cleaning. Vacuum off any dirt and/or gently wash and dry the filter, according to the producer's guidelines.

Moving forward, examine the filter monthly, and clean or change your furnace filter a minimum of every 90 days.

Open Some Vents

You might have closed a couple of vents in the past when your space got too hot. That's alright, however ensure some vents are left open. Once again, this is very important to permit proper airflow to the heater.

2. Your Thermostat Is Faulty

Another reason your heating system keeps turning off could be the thermostat.

Inspect The Setting

Ensure your thermostat is switched on and changed to "HEAT." Likewise, verify the temperature level. Someone might have adjusted it to a lower setting than you 'd like.

Check Thermostat Communication With The Heating system

Have a friend stand near the furnace and listen while you adjust the thermostat from "LOW" to "HIGH." If he or she hears a sound, the problem is probably with your heater. If not, your thermostat is likely malfunctioning.

Check Thermostat Placement

A thermostat situated in a warm spot (for instance, near to the kitchen area or on a sunny wall) will register a heat and shut the heater off, while the rest of your room is still chilly.

Talk with us about the best thermostats and the most effective placement. If your house tends to heat unevenly, consider a heat zoning system.

3. Flame Sensing Unit Is Corroded Or Soot-Covered

A flame sensing unit issue could be why your heating system keeps turning off. The flame sensing unit is a safety gadget created to turn off your heating system if no flames are found, safeguarding you versus harmful gas fumes. If the flame sensor becomes rusty or covered in soot, it can not detect flames, even when your heater is running properly. As a result, the sensor shuts the heater down.

This is a serious issue requiring prompt professional heating system repair work.

4. Heater Is Too Big

You might have been sold a heating system which is too big for your home. If that's the case, it will warm your rooms quickly. As soon as the heater reaches the set temperature level, the thermostat will shut it off, triggering your home to cool quickly ... setting off the heating system to turn on once again. This short-cycle pattern won't provide the home comfort you want, and is difficult on your furnace, too.

Look into changing your oversized furnace with a new, energy-efficient design that is properly sized for your requirements.