AC clicks and off with 1/2 a second happens every 5-10 minutes


  #1  
Old 07-27-18, 11:59 AM
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AC clicks and off with 1/2 a second happens every 5-10 minutes

I have already had 4 HVAC companies try to figure this out. No luck. Every 5-10 minutes the circuit board inside will click. The board has 2 green lights and 5 red. Every 5 to 10 minutes
  • the #1 green will click off while #2 and #3 Red simultaneously will click on...
  • 1/2 second later it will happen again and then not for 5-10 minutes
  • Meanwhile outside...when the board does the above the compressor clicks on and off within 1/2 second.
We have already moved and replaced thermostats. We replaced the circuit board a few years ago. This is a Lennox unit.The ac cools nicely but only stays on 5-10 minutes at a time. see video by copy/paste at https://photos.app.goo.ql/gDTeVhQ8YVfv1xwA8
 
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Old 07-27-18, 12:06 PM
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Could be the control board is bad. I've had to replace mine two times within 6 years. I was lucky that the warranty covered them. Is this a Heat Pump or just A/C?
 
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Old 07-28-18, 10:22 AM
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Welcome to the forums.

One topic is contained within one thread. This is your only thread on your A/C problem.
Your video link is not working.

What is the model number on that Lennox condenser ?
 
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Old 07-30-18, 07:58 AM
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Just the AC. I was afraid it might be the control board again. Thanks for your reply.
 
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Old 07-30-18, 08:01 AM
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I will check that and get back to you.
 
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Old 08-02-18, 09:33 AM
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Lennox compressor : M/N 13ACX-048-230-12
 
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Old 08-08-18, 07:34 PM
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Originally Posted by pattenp
Could be the control board is bad. I've had to replace mine two times within 6 years. I was lucky that the warranty covered them. Is this a Heat Pump or just A/C?
I am told my unit is a heat pump
 
 

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