2003 F150 A/C Intermittent On/Off

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Old Aug 13, 2012 | 06:08 PM
  #1  
BrendanMinter's Avatar
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2003 F150 A/C Intermittent On/Off

I have a 2003 F-150 King Ranch

A/C panel and A/C system will intermittently turn OFF. Typically, the panel will flash ON/OFF quickly (showing full display of LED panel). The A/C system and the panel will then turn Off/go blank. This situation may persist for 1 minute or sometimes as long as 20 minutes during which time A/C is off. The panel will then flash On (full display momentarily) and the A/C system will turn on. It always turns on to "MAX A/C with set point of 60 for temperature". This has been happening for quite a few years and appears to be worse during summer months (Houston) when truck interior temperature is very high (black paint job).

Any suggestions? Many thanks. It was 102 on the freeway today and A/C was out for 20 minutes
 
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Old Aug 14, 2012 | 06:32 AM
  #2  
projectSHO89's Avatar
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From: St. Louis (Out in the woods)
Check the performance of your truck's battery and charging system. Improper supply voltage will cause the EATC to do weird things.
 
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