[Hai-users] thermostat control problem...again...

[Joseph Vossen]

> You can confirm whether there is a hardware problem on the controller related to the output chip:
> 
> 1. Remove all of the tstat wiring from Output 8, Ground, and Zone 16 "+".
> 2. Using a multi-meter (preferably a digital unit set to DC scale), measure the voltage between Output 8 and Ground.  What you should see is an oscillating voltage, ranging from 0.1 - 9+ VDC.  If you see a "constant" voltage or no voltage, the output chip has failed again.

I will chk that this week-end...thanks

> If the chip is bad, that is going to be a problem.  HAI no longer performs repairs on the older Omni series of controllers.

yuck....OK...I guess that means upgrade...thanks