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:
I unplugged and re-plugged the column heater –not a connection problem.
The internal fuse etc was checked and it looked fine too.
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.