A/C Shutdown

The SMXir unclips from a mounting bracket. Just pull it out, I think bottom first. The cable clips in the back there should be enough slack to pull it out.
 
Perhaps you should try the temperature sensors re-calibration, from the manual. It sounds as if this is the problem you are having it would be worth a try?
Temperature Calibration
(Factory set: +/- 1 deg. Fahrenheit)
The SMX II has one thermistor for cabin temperature. The SMX
Online Net has both inside and outside thermistors. These
sensors are calibrated at installation.
To check or recalibrate the thermistors:
• Use the TEMP key to select inside temperature
(SMX Online Net only).
• Enter the programming mode:
Press OFF.
Press SET.
• Press SET and UP simultaneously. The temperature will be
displayed in degrees Fahrenheit or Celsius, depending on
which you have selected.
• Place an accurate thermometer beside the thermistor you are
using and compare the temperatures.
• Use the UP or DOWN key to adjust the displayed temperature
to the correct value.
• Press OFF to exit the programming mode.
 
quote:
Originally posted by PascalG

The SMXir unclips from a mounting bracket. Just pull it out, I think bottom first. The cable clips in the back there should be enough slack to pull it out.

Click to expand...


=====================================================

+1

after reading this thread I popped mine out and added some dielectric grease to the multiconnector, as it is actually mounted into the air duct system.

RWS
 
Originally posted by Doc

OK, new info.

It ran 2 hours and turned itself off again. Dead except for the set temp showing. Moving the up/down buttons had no effect. Pressing Cool started it up again. Still running.

I decided to do a couple of things before letting it run.

1. I hit Temp button and it thought that it was 61 degrees in the cabin. The set point was 76. Hitting Temp again flashed between 61 and 76. It was about 76 degrees in the cabin when it quit.

2. I did a factory reset to original configuration.

3. I calibrated the Temp reading to actual of 76 degrees in the cabin instead of 61.

Still no fault codes. For some reason it thinks it is very cold in the cabin and shuts down.

[/quote

I had exactly the same experience for the last 2-3 weeks on one of my units. Shutdown with no codes. Temp button showed 47 degrees one time and 62 another time after doing a reset.

Woke up Sunday morning with unit off and the low pressure fault code displayed. The AC doc is on the way to find the leak and recharge the system.
Click to expand...
 
You must log in or register to reply here.
Back
Top