When the nights in Redding dip into the 30s, a working furnace isn’t just about comfort, it’s about keeping your family safe. The problem is, most furnaces give warning signs before they break down completely. Knowing these signs can save you money on repairs, cut down on high PG&E bills, and prevent emergency calls in the middle of a cold snap. At Infinity Heating & Air, we’ve helped countless Shasta County homeowners restore heat quickly. Here are five signs your furnace needs professional repair and when to call us for help.
Few things are more frustrating than turning on the heat and feeling nothing but chilly air. This can be caused by:
A faulty igniter or extinguished pilot light
Thermostat malfunctions
Blocked airflow or clogged filters
If your system is running but only produces cold air, it’s time to schedule furnace repair in Redding.
Check your thermostat is set to “Heat” and above room temperature — if cold air persists, it’s a job for the pros.
It’s normal for a furnace to hum, but loud or unusual noises signal trouble.
Banging or popping: delayed ignition of fuel
Squealing: worn blower belt
Rattling: loose panels or potential heat exchanger issues
If your furnace constantly starts and stops in short bursts, it’s “short cycling.” Causes include overheating, clogged filters, or an oversized furnace. Not only does this waste energy, but it also wears down parts quickly.
Learn more about this issue in our Ultimate Guide to Furnace Repair, Maintenance, and Installation in Shasta County.
If some rooms feel like a sauna while others are freezing, your furnace may be struggling. This often happens when:
Ductwork is leaking or unbalanced
Vents are blocked by furniture or rugs
The furnace is losing efficiency with age
Infinity’s team not only repairs furnaces — we also inspect ducts and airflow systems to ensure every room in your home stays warm.
Has your PG&E bill spiked even though your usage hasn’t changed? A failing furnace often runs longer and harder, burning more energy just to keep up. Dirty filters, worn-out components, or an inefficient system are the usual culprits.
PG&E notes that heating makes up nearly 40% of winter household energy use — meaning a struggling furnace hits your wallet fast.
If you’ve noticed one or more of these signs, don’t wait until your furnace quits entirely. Early intervention can save you stress and money.
Call Infinity Heating & Air for 24/7 emergency furnace repair in Redding, Anderson, and Cottonwood.
If your furnace is 15+ years old and repairs are costly, consider whether furnace replacement in Redding might be the smarter investment.
Schedule a fall furnace tune-up before the first big cold snap. It’s the easiest way to prevent surprise breakdowns.
We’ll get one of our certified techs out to diagnose and fix it fast. Don’t shiver in an under-heated home – we offer 24/7 emergency HVAC service in Redding, Anderson, Cottonwood and all of Shasta County!
Schedule TodayCheck monthly during peak heating season. Replace every 1–3 months, depending on dust and household use.
Minor hums are fine, but bangs, squeals, or rattles can signal safety issues. Call a technician if noises persist.
First, check your thermostat and circuit breaker. If it still won’t turn on, call Infinity Heating & Air for emergency furnace repair in Redding.
If repairs cost more than 50% of replacement, or if your furnace is 15+ years old, replacement is often the better long-term choice.
We’ve compiled a handy Winter Furnace Maintenance Checklist that you can print out and use each year. It covers all the essential steps to winterize your furnace and ensure it’s running safely and efficiently.
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