2695 Alliance error: Column temp h/w fault (5)

I have been encountering the error "Column temp h/w fault (5)"  on a 2695 Alliance. I tried to ignore the alert and run a diagnostic test on the column heater. 5 seconds into the diagnostic test for the column heater, the test is interrupted by the error message. 

The help manual suggests that this error means one of the following:

  1. Broken communication to the heater
  2. Circulating fan failure
  3. Internal temperature exceeded the limit

I unplugged and re-plugged the column heater –not a connection problem.

The heater temperature was set to 37 deg C, and the operational temperature was 24 deg C. 

When I try to switch off the heater and run the method, the same error message pops up. 

The column heater doesn't have a on/off switch, so there is no way to isolate the component or work without it. 

Please provide suggestions on how I can resolve this. 

 



Answers

  • If you shut the column temp control off in your instrument methods, you should be able to run at ambient temp.
  • If you shut the column temp control off in your instrument methods, you should be able to run at ambient temp.
    I tried to, but the alert kept popping up and it interrupted any method that I tried to run. 
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