Team-BHP > Technical Stuff
Register New Topics New Posts Top Thanked Team-BHP FAQ


Reply
  Search this Thread
20,143 views
Old 22nd July 2021, 22:07   #1
Newbie
 
Join Date: Dec 2017
Location: Milpitas, CA
Posts: 13
Thanked: 6 Times
Cooling fans turn on and off repeatedly, when the AC is on

Hello! I recently bought a 2014 Honda Accord LX (2.4 I4) in Washington. It is a single owner vehicle with around 50,000 miles on it (low mileage for 7yrs!).

However, I noticed that when the AC is on, the twin cooling fans inbetween the engine and the radiator go on and off crazily (like every 20sec or so). I read on a couple of online forums that this was deliberately done by Honda to reduce load on the compressor.

Is this normal?
karthikbhat8923 is offline  
Old 23rd July 2021, 11:45   #2
BHPian
 
Rshrey22's Avatar
 
Join Date: May 2017
Location: Delhi
Posts: 342
Thanked: 660 Times
re: Cooling fans turn on and off repeatedly, when the AC is on

Get your radiator and ac condenser cleaned with a pressure washer. Repeated kicking of fans occurs because the condenser alone is not able to dissipate heat owing to dust accumulation.
Rshrey22 is offline   (1) Thanks
Old 23rd July 2021, 13:55   #3
Distinguished - BHPian
 
dhanushs's Avatar
 
Join Date: Oct 2009
Location: Chennai
Posts: 4,286
Thanked: 10,185 Times
re: Cooling fans turn on and off repeatedly, when the AC is on

Quote:
Originally Posted by karthikbhat8923 View Post
Hello! I recently bought a 2014 Honda Accord LX (2.4 I4) in Washington. It is a single owner vehicle with around 50,000 miles on it (low mileage for 7yrs!).

However, I noticed that when the AC is on, the twin cooling fans inbetween the engine and the radiator go on and off crazily (like every 20sec or so). I read on a couple of online forums that this was deliberately done by Honda to reduce load on the compressor.

Is this normal?
I think its completely OK. The thermostat is working and hence this behavior. You should be concerned if the fan doesn't turn on or is running in full speed all the time.
dhanushs is offline   (1) Thanks
Old 25th July 2021, 01:21   #4
Distinguished - BHPian
 
audioholic's Avatar
 
Join Date: Jun 2012
Location: BengaLuru
Posts: 5,660
Thanked: 19,421 Times
re: Cooling fans turn on and off repeatedly, when the AC is on

One of the cooling fan is normally commanded by engine coolant temperature while the other is commanded by the operation of the AC Compressor. Only in extreme conditions both fans run as a fail safe. So depending on the condition the fans turn on and off intermittently.
audioholic is offline  
Reply

Most Viewed


Copyright ©2000 - 2024, Team-BHP.com
Proudly powered by E2E Networks