Why Your Air Kicks On When Your System is Set to Heat

hvac settings

Your home can quickly become uncomfortably chilly if your HVAC is set to heat but there’s cold air coming from the registers. There are a few reasons why this might happen: it may be an easily-fixed mix-up in your thermostat’s HVAC settings, the need for some basic maintenance, or a potentially-serious electrical problem.

By learning what to look for, you can solve some issues on your own, and know when to get professional help:

Start at the Thermostat

Check for these problems with your thermostat first to see if you can restore the flow of warm air:

Look for Airflow Restrictions

If your HVAC is starved of airflow, it can cause the furnace to overheat and trigger a system shutdown to prevent a potential fire. Common issues that impede airflow that you can easily correct include a badly clogged air filter, closed supply registers and/or obstructed return air grilles.

Check the Breaker

A power spike or surge or problems within the heating system, like faulty electrical wiring or an overloaded circuit, can trip the HVAC breaker in your home’s electrical panel. If you investigate why there’s no warm air wafting from the registers and discover that the breaker has tripped, you can try resetting it. If it trips a second time, don’t attempt to reset it again. An HVAC professional will need to thoroughly inspect the heating system instead to prevent equipment damage and avoid the risk of fire.

For expert help determining if a loss of warm air output at your registers is due to HVAC settings or another cause, contact us at Jackson & Sons.

Jackson & Sons, Inc.

Our goal is to help educate our customers in Eastern North Carolina (including Wayne, Johnston, Greene, Lenoir, Pitt and Duplin Counties) about energy and home comfort issues (specific to HVAC systems).

» «

Dependable Service Throughout Eastern NC

When you need heating or air conditioning repairs, maintenance or system replacements, you need a company you can count on for dependability and quality service. Contact us at Jackson & Sons at 919-734-9611. Our professional team of technicians look forward to providing energy efficient and cost effective solutions to keep your home or business comfortable at all times.

Contact Us

Why Jackson & Sons

Licensed, Bonded & Insured
Energy Efficient Experts
Same Day Repairs
5 Star Service
Dependable Warranties
Commercial & Residential Services
1service
2details
3customer
4returning
5schedule
  • How Can Jackson and Son's Help You Today?