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How to get error code from A/C unit

13K views 5 replies 3 participants last post by  SouthZJ 
#1 ·
Hey Guys

I red somewhere that you can read out error codes from the heat and A/C unit over the display when you press A/C and recycle button, something like that.

Can some one give me a little description how to read it out Thanks, got to fix my heat until the winter sets in

A/C is good just no heat at all, some times i get a "Er" in the display when i start the old girl up, checked the hoses for the heat exchanger and both are hot, i even flushed it and totally clean water and very good flow so its not that, when i turn the round button for the temp adjustment i can hear a motor move but no heat it just stays cold so i guess the door thing in there is broken and i just would like to try to get the codes out first before i start tearing everything apart

Thanks Guys

1995 ZJ Orvis 5.2l
 
#2 ·
press both buttons and turn the dial one click clockwise to enter diagnostics mode. Service manual or Haynes will have the codes listed....
 
#3 ·
Thanks tried it with the ignition in on and when i press both buttons and turn the dial on clockwise and let go i get a scale of some sort where i can choose from 00-38 not sure what thats for but if i press the a/c button again i get a 02 with a sitting men next to it, i guess thats the error code

whats the 00-38 for?

Thanks guys
 
#6 ·
so big surprise, i come back from my vacation and will i was driving the last km home i turn it to hot and there it was Hot air, i could not believe it so i tried it the following day and again there was Hot air coming out of my vents, i did not touch anything but for the past few days i have a fully working system and that for the fist time in 12 month, lets see how long it last :)

Thanks for all your reply's guys, always a big help this forum
 
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