Check Your Thermostat Settings First
Thermostats are behind many no-heat calls at the start of winter. Make sure your thermostat is set to heat and that the temperature is higher than the current room temperature. If the screen is blank or slow to respond, replace the batteries.
Replace or Inspect the Air Filter
A clogged filter can reduce airflow, create hot and cold spots, and even cause the system to shut off. Federal energy guidance notes that a clogged filter can increase energy use by 5 to 15%. Check your filter and replace it if it looks dusty or discolored, especially before the next cold front moves in.
Make Sure Vents and Registers Are Clear
Blocked supply or return vents can make rooms feel cold even when the furnace is running. Move furniture, curtains, rugs, and holiday decorations away from vents and returns.
Listen for Unusual Noises
Your heating system should not make banging, grinding, or rattling sounds. These noises can point to loose panels, blower motor issues, or worn internal parts. If you notice new or persistent noises, schedule a checkup before temperatures drop further.
Watch for Airflow Problems and Short Cycling
Weak airflow from your vents can come from dirty coils, blocked returns, or a failing blower motor. If you have a heat pump, frost or ice buildup on the outdoor unit may indicate a defrost or airflow issue, which is more common during Arctic cold snaps. Short-cycling, where the system turns on and off frequently, can be caused by dirty filters, overheating parts, or flame sensor problems.
When to Call Conan Heating & Air Conditioning
Some problems are best left to professionals. If you still have no heat, notice burning smells, or deal with repeated shutdowns, it is time to schedule service. Conan Heating & Air Conditioning is a BBB-accredited company with an A+ rating and has been serving Idaho Falls since 1947. Our NATE-certified technicians service all brands and are committed to keeping your home safe and comfortable through every cold snap and holiday gathering.
