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- Furnace Tune Up Overview
- Furnace Tune Up: What and Why?
- Furnace Tune Up Checklist
- Furnace Tune Up Cost
- How Often Should a Furnace Be Tuned Up?
- Furnace Tune Up Plans Good and Bad
- Furnace Tune Up Scams
- Choosing a Furnace Repair Company
A furnace tune up costs $115 to $200 based on the checklist of
services included. Average cost is $140.
A furnace tune up should be done yearly to every five years based
on a range of factors.
Full furnace maintenance details and costs are explained below.
Furnace Tune Up Overview
This guide covers these furnace maintenance topics:
- Furnace tune up checklist
- Furnace tune up cost
- How frequently a furnace should be maintained
- Furnace tune up service agreement pros and cons
- Furnace tune up scams
Furnace Tune Up: What and Why?
A furnace tune up or furnace basic maintenance includes cleaning
the furnace interior, inspecting all parts and providing additional
maintenance as needed.
The purpose of tuning up a furnace is to:
- Optimize efficiency and performance
- Check safety issues
- Find and fix minor repairs before they cause major mechanical
A clean, well-maintained furnace will keep your home comfortable,
reduce energy costs and run safely.
Furnace Tune Up Checklist
What is done during a furnace tune-up?
Here’s the checklist and purpose for each step:
Inspect the flue for a tight connection: Before starting the furnace, the technician should take a look to
make sure combustion exhaust gases including carbon monoxide will
leave through the flue rather than leak.
Check and clean or change a dirty filter: A dirty filter makes the furnace work too hard, wastes energy and
can cause mechanical damage.
Start the furnace: This is done to check basic operation make sure the draft motor
starts, the burner fires and the blower comes on and sounds like it
is running properly.
Clean the furnace interior: This step includes vacuuming out debris and using cleaner and a
cloth to clean the burners and pilot assembly or hot surface
igniter. The blower motor and its cage” will also be cleaned.
The igniter will often be cleaned with emery cloth or sandpaper to
remove carbon and improve performance.
Test the ignitor: Over time, an igniter will wear out. As it does, less charge gets
through it. Eventually, it won’t work. This video discusses this
important step and shows how you can do this yourself.
Adjust the pilot: Few furnaces still have pilots. If yours does, the technician will
adjust it to optimal height.
Adjust the burners: This important step ensures the burners are burning at maximum
Check and adjust the gas pressure and the air mix: This ensures safety and the cleanest burning of the burners.
Check electrical components: A range of parts are inspected and tested Thermostat contacts,
safety switches, limit control which prevents overheating, fan
control and wiring.
Maintain blower assembly: The motor will be checked and lubricated, if needed. Blower speed
might be adjusted to optimize airflow. The wheel will be cleaned
Inspect visible ducts for leaks: Leaking ducts waste up to 30% of the heat created.
Clean an indoor coil: If your furnace contains an AC coil, it will be cleaned and
inspected for leaks. See our AC Tune Up Guide for full details.
Inspect the heat exch