When your furnace blows cold air in the middle of winter, it’s more than just uncomfortable—it can be dangerous. Heat loss puts your home at risk for frozen pipes, health concerns, and significant inconvenience. But not every heating problem requires an emergency call.
This guide will help you troubleshoot common furnace issues and recognize when it’s time to call Hunt’s Services for urgent furnace repair in Tacoma and the surrounding areas.
Check These 3 Things First
Before assuming the worst, take a few minutes to check these often-overlooked but straightforward furnace fixes:
1. Thermostat Settings & Battery
- Set to “Heat”:It may sound obvious, but check that your thermostat is set to “Heat” and not just “Fan” or “Cool.”
- Temperature Setting:Make sure it’s set at least 5 degrees aboveyour current room temperature.
- Battery Check:If your thermostat is battery-operated, replace the batteries. Low battery power can interfere with furnace communication.
If the thermostat is programmable, review the schedule settings—it might be set to an energy-saving mode that lowers the temperature during certain hours. Also, some smart thermostats have safety lockouts that prevent the furnace from running if there’s a suspected system error.
2. Furnace Filter
A clogged air filtercan restrict airflow so severely that your system overheats and shuts off its burners as a safety measure. If your furnace runs but no warm air comes through, turn it off and inspect the filter. Replace it if it’s dirty—you should do this monthly during the heating season.
Also, consider the filter size and MERV rating. Filters that are too restrictive (high MERV ratings) can reduce airflow. If your system wasn’t designed for those, it can cause operational issues and damage over time.
3. Circuit Breaker
Check your furnace breaker switchin your electrical panel. If it’s tripped, reset it once. If it trips again, this could signal an electrical issue that requires a professional inspection.
A tripped air handlerbreaker may also be the culprit in homes with electric furnaces or heat pumps. Additionally, ensure the power switch near the furnace unithasn’t been accidentally flipped off—it’s often mistaken for a light switch in basements or closets.
Learn more about electrical issues in cold weather
When to Call Hunt’s Services
If basic troubleshooting doesn’t restore your heat, the problem could involve internal components that only a certified technician can diagnose and fix.
1. Blower or Ignitor Failure
- Blower motor issuesmay prevent heated air from circulating, even if your furnace produces heat.
- Faulty ignitors or flame sensorscan prevent the burners from staying lit, which results in cold air blowing from your vents.
These are not DIY fixes and often require diagnostic tools to confirm. Attempting to repair these components without proper training can be unsafe.
2. Fast, Professional Repair When You Need It
Hunt’s Services offers fast, same-day furnace repairappointments in Tacoma and surrounding communities. Our licensed HVAC technicians are trained to diagnose and resolve issues efficiently so you’re not left in the cold for long.
Schedule a Service Call
See Hunt’s Customer Reviews
Explore Furnace Repair Services
Additional Troubleshooting Tips
1. Check for Error Codes
Many modern furnaces have a small window showing blinking lights. These error codeshelp technicians diagnose problems. Refer to your furnace manual or take a video to show a technician.
Each manufacturer uses a unique code system—some show one long blink followed by short blinks to signal different errors. Don’t ignore these lights; they offer crucial clues about sensor issues, control board problems, or airflow faults.
2. Examine the Pilot Light (Gas Furnaces)
If you have an older gas furnace with a pilot light, it should burn a steady blue flame. A yellow or flickering flame could indicate a ventilation or combustion problem, a safety concern that should be addressed immediately.
Newer systems have electronic ignition systemsinstead of a standing pilot. If you don’t see a flame, don’t attempt to light it manually unless your owner’s manual specifically allows it and you’re familiar with the process. Otherwise, call a technician.
3. Inspect Vents and Ducts
Make sure vents are open and unblocked. Closed or obstructed vents reduce efficiency and can trigger furnace safety shut-offs. Also check for visible duct leaksin accessible areas like basements or crawl spaces.
Leaky ducts can cause up to 30% of heat loss, especially in older homes. Signs include rooms that never get warm, high energy bills, or dust buildup. A professional duct inspection and sealing can dramatically improve comfort and efficiency.
Learn about duct sealing and cleaning
What Customers Are Saying
“We had no heat during a freezing night and called Hunt’s. They arrived quickly, explained everything clearly, and got our furnace running in no time. So grateful!” – Tiffany L.
“The team at Hunt’s was efficient, respectful, and professional. They fixed a blown ignitor and even helped us join their maintenance plan for long-term peace of mind.” – Carlos B.
“This company really came through when our furnace failed. Prompt response, reasonable pricing, and excellent service.” – Debra S.
Read morecustomer reviewsand see why Hunt’s Services is the trusted choice for furnace repairs across the South Sound region.
Don’t Freeze – Fix It Fast
Cold air from your furnace can have simple fixes or indicate a more serious mechanical failure. Always check your thermostat, air filter, and circuit breaker first. But if your system still isn’t heating, don’t wait.
The experts at Hunt’s Services are here to help Tacoma-area homeowners stay warm and safe all winter long with fast, professional repairs.
Call for Furnace Repair
Join the Hunt’s Care Club for Maintenance Savings
FAQs
1. Why is my furnace blowing cold air but the thermostat is set correctly?
This often indicates a dirty filter, ignitor problem, or faulty flame sensor. Check basic settings, then call a technician for inspection.
2. Can a dirty air filter cause cold air from the furnace?
Yes. A clogged filter can lead to overheating and safety shutdowns that result in cold air blowing through your vents.
3. When should I call for emergency furnace repair?
Call if you’re without heat during a freeze, hear unusual noises, or suspect an electrical or gas issue. While Hunt’s doesn’t offer 24/7 service, we provide prompt scheduling and same-day repairs when possible.
4. How can I prevent furnace failures in the future?
Regular maintenance, such as filter changes, seasonal tune-ups, and membership in a care plan like Hunt’s Care Club, significantly reduces breakdown risks.
