There’s nothing worse than turning up the heat on a cold Central Oregon morning and realizing your furnace isn’t keeping up, or isn’t running at all. Before you’re left in the cold, it helps to understand the most common reasons furnaces struggle and which problems you can check yourself versus when it’s time to call a professional.
Bend Heating & Sheet Metal has kept Central Oregon families warm through the winter since its founding in 1953. Here are the furnace problems we see most often and what to do about them.
First, the Simple Things to Check
Before assuming the worst, a few quick checks can save you a service call:
- Check your thermostat. Make sure it’s set to “heat” and the temperature is set above the current room temperature. If it’s programmable, confirm the schedule is set correctly, since a misunderstood schedule is one of the most common reasons people think their system isn’t working.
- Check your breaker. A tripped breaker can stop your furnace from running. Check your electrical panel and reset it if needed.
- Check your filter. A severely clogged filter restricts airflow and can cause performance issues or even shut the system down.
- Check your vents. Make sure supply and return vents are open and unblocked.
If those are all fine and your furnace still isn’t heating properly, the issue likely needs professional diagnosis.
Common Furnace Problems We See
Your Furnace Isn’t Reaching the Set Temperature
If your furnace runs but never quite gets your home to the temperature you set, it could be an airflow problem, a dirty filter, or a component beginning to fail. Central Oregon’s cold snaps put extra demand on furnaces, and a system that’s already struggling will show it when temperatures drop.
Your Gas Furnace Quit Working
There are a few common culprits here. One is the pressure switch, since moisture can sometimes get into it and cause problems. Another is a tripped breaker. These require professional diagnosis to pinpoint and repair safely.
Your Furnace Won’t Run at All
When a furnace won’t start, one common cause is the combustion blower going out on a thermal limit. This is a safety feature shutting the system down, and it needs a technician to diagnose the underlying cause and restore safe operation.
Weak Airflow or a #13 Error Code
A lack of airflow is a common furnace issue and often shows up as a #13 error code on the system. Airflow problems can stem from several causes, and a technician will diagnose the specific source to correct it.
Strange Noises or Smells
Unusual noises or persistent smells (beyond the brief dust smell when you first run the furnace each season) are worth paying attention to. They can indicate a mechanical issue or a component problem that should be checked before it gets worse.
Why Furnace Safety Matters
A gas furnace burns fuel to create heat, which makes safe operation essential. This is one of the biggest reasons furnace problems shouldn’t be ignored or turned into DIY projects. A professional technician can safely diagnose and repair issues while confirming your furnace is operating safely, something that’s especially important with gas equipment.
If you ever suspect a gas leak or your carbon monoxide detector goes off, leave your home and call for emergency help immediately.
When to Call a Professional
Call a professional when:
- Your furnace isn’t reaching the set temperature despite running
- The furnace won’t start at all
- You’re getting error codes or the system keeps shutting down
- You hear unusual noises or notice persistent smells
- Airflow is weak or heat is inconsistent
Catching furnace problems early, ideally before or during the first cold weeks, usually means a simpler, less expensive repair than waiting until the system fails completely on the coldest night of the year.
Don’t Get Left in the Cold
If your furnace isn’t heating the way it should, our experienced technicians can diagnose the problem and get your heat back on quickly and safely.
For furnace repair in Bend, Redmond, Sisters, or Sunriver, call Bend Heating & Sheet Metal at (541) 382-1231 or get a quote. Serving Central Oregon with trusted heating expertise since 1953.
Licensed, experienced, and committed to keeping Central Oregon families warm and safe all winter.
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