You rely on your furnace for warmth during winter, so it can be frustrating to discover that the system is blowing cold air. Understanding the potential causes of the issue will help you determine how to fix it. The team at Always On Call Mountain Mechanical of Anchorage, AK, helps customers keep their homes warm all season. Here, the heating system experts discuss a few common causes for cold air.

4 Reasons Why Your Furnace Blows Cold Air

1. Incorrect Thermostat Setting

The simplest explanation for a system that blows cold air is a thermostat with the wrong settings. If the fan is turned on, then it may continuously blow air at any temperature. Switching back to the automatic or heat mode and confirming that the system is set up for heating instead of cooling means the fan will only turn on to provide warm air. Keep in mind some systems are set up to run the fan constantly, for various reasons.

2. Poor Thermostat Performance

The thermostat might not maintain your preferred settings if the battery is dying or installed incorrectly. Check the battery to make sure it fits firmly in the compartment and has enough power. If your furnace issues continue, then the thermostat itself may be a problem. Newer equipment with automated digital settings might not be compatible with an old furnace.

3. Burned-Out Pilot Light

Some furnaces have a continuous pilot light that can blow out occasionally. You may be able to find instructions for reigniting the pilot in the owners manual. If you can’t find directions, or the light keeps going out, have it checked by an HVAC professional.

4. Malfunctioning Control Panel

Newer furnaces come with an electric control panel. If your home is cold, you may be able to turn the panel off and back on again to restore the settings. If the problem persists, then you will need to call a heating system expert to diagnose and fix the problem.

When you need help getting your furnace to blow hot air again, contact Always On Call Mountain Mechanical for fast, responsive service. These heating contractors understand how important it is to have a functioning furnace during Alaskan winters and will diagnose the problem and recommend an effective solution. Visit the company’s website to learn more about the services they offer, and call (907) 344-0700 to make an appointment.