Michael North
New member
Hello guys, I have a weird one for you. Anyone have a fix for this?
I drive my Grand Cherokee daily as a field service technician and several times a day the digital heater/AC control will like stop controlling the heat and the temp will rather suddenly change, a lot. Most, but not all of these times are preceeded by the letters "er" on it's display.
Sometimes turning it all the way off for a while then back on works and sometimes this makes no difference.
I suspect the electronic heater control module itself, but wanted to run this by all of you before I dive into it. Thanks!
atriot:
I drive my Grand Cherokee daily as a field service technician and several times a day the digital heater/AC control will like stop controlling the heat and the temp will rather suddenly change, a lot. Most, but not all of these times are preceeded by the letters "er" on it's display.
Sometimes turning it all the way off for a while then back on works and sometimes this makes no difference.
I suspect the electronic heater control module itself, but wanted to run this by all of you before I dive into it. Thanks!
atriot:
