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What to Do If There’s No Heat Coming from Your Furnace or Heating System


homeowner setting home thermostat temperature

As the temperatures drop and winter sets in, a malfunctioning furnace or heat pump can quickly turn your cozy home into an icebox. If your heating system isn’t producing warm air, here are a few tips for investigating the issue or contacting a professional technician for repairs.

 

Troubleshooting Tasks and Checks You Can Do Yourself

Sometimes, when your heating system is blowing cold air, it’s simply due to a minor issue that can easily be resolved. Here are a few tasks you can do to try and get your system back up and running:

 

  • Check the thermostat settings. Ensure your thermostat is set to the desired temperature and the mode is switched to heating. Sometimes, a simple programming error or a dead battery can disrupt your heating system.  

  • Inspect the filter. A clogged or dirty filter can impede airflow, forcing your heating system to blow cooler air than expected. Regularly check and replace filters to maintain efficiency and prevent potential breakdowns.  

  • Verify the circuit breakers. Examine the circuit breakers connected to your heating system. A tripped breaker can cut power to the furnace or heat pump, causing a lack of heat. Reset any tripped breakers and see if it resolves the issue.

 

If you have a gas furnace, make sure the pilot light is lit. If it goes out, follow the manufacturer’s instructions to relight it. If it continues to go out, call a professional.

 

Problems for the Professionals to Repair

While some heating issues can be resolved with simple homeowner checks, others require the expertise of a qualified HVAC technician, including:

 

  • Water leaks. Water leaks around your furnace or heat pump can damage the system and compromise its functionality, requiring prompt attention to prevent further damage.  

  • Damaged wiring. Faulty wiring or electrical components can cause your heating system to malfunction. It’s best to leave electrical repairs to the experts, as attempting to fix them yourself could result in electrocution or a fire.

  • Gas issues. If you suspect a gas leak or notice a sulfuric odour, evacuate your home immediately and call your gas company. Gas-related issues require immediate attention from a qualified HVAC technician.

 

Preventative Maintenance

Regular maintenance is key to preventing many common heating system issues. At Black Forest Plumbing, we offer a dollar-a-day subscription service designed to keep your furnace or heat pump running smoothly. Our technicians will catch minor issues before they escalate into costly repairs or total breakdowns.


Comprehensive Furnace and Heat Pump Repair and Maintenance

If your furnace or heat pump is acting up, Black Forest Plumbing can help. We offer 24/7 assistance and provide reliable and affordable furnace and heat pump repair and maintenance services for customers in the Greater Toronto Area, including Aurora, Newmarket and Barrie. Contact us today for a free consultation.

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