0
What is the difference between leaving the fan on or letting the fan run on auto with a central air conditioning unit?
Updated: 9/16/2023
Often, leaving the fan in the ON position will tend to distribute conditioned air more evenly through a house. This works well for cooling in particular. The furnace fan motor is designed for continuous operation, so running it 24/7 will not harm it, but it will cause the motor to use more electricity. It may reduce compressor operation somewhat, however. Another reason to run the fan continuously is to pass more air through accessories like electronic air cleaners, UV lamps, or HEPA filters.
Running the fan continuously in winter may tend to feel drafty. You'll have to experiment to see how it feels.
The HVAC Veteran
Still curious? Ask our experts.
Chat with our AI personalities
CoachSuccess isn't just about winning—it's about vision, patience, and playing the long game.
Chat with Coach
LaoThe path is yours to walk; I am only here to hold up a mirror.
Chat with Lao
JudySimplicity is my specialty.
Chat with JudyAdd your answer:
Earn +20 ptsQ: What is the difference between leaving the fan on or letting the fan run on auto with a central air conditioning unit?
Write your answer...
Submit
Still have questions?
Trending Questions
Will your homeowners insurance cover damages caused by a hit and run driver who smashes into your brick wall fence?
Can kids ride in the bed of a pickup truck with topper?
What is the purpose of an exhaust expansion box?
Can too much weight on the drive axle can cause hard heavy steering?
What is Displacement volume in reciprocating engine?
What if your license can be canceled if you?
Do safes made in 1987 contain asbestos specificly a Mosler safe model number CL5 2DRW?
What is the typical average speed of a car?
How many mile Toyota tundra can run for 1 gallon?
What is is automatic generation control and What is are the mode of agc?
What type of oil does a 2008 jeep wrangler use?
If your insurance company denies a claim can the state revoke your driver license just as if you were carrying NO insurance?
Timing marks on 1966 GMC V6?
Single most common cause of collision?
What happens if you are involved in an auto accident on private property?
What is the Goodman air conditioner model number CKL49-1L tonage?
Does State Farm sell day car insurance?
How do you turn 4wd to 2wd?
What is the top rated car insurance for a person that owns a Toyota vehicle?
Does home owners insurance cover damage to a carpet due to furnace malfunction?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.