acheslow
Active Member
So I finally got up the guts and the time to try installing the TR40 that's been sitting in my closet for the last few months. I was particularly sensitive about screwing something up and leaving my family without heat so I actually read and re-read the instructions several times before even starting. I was very careful to wire up everything exactly as the directions said, but when I powered up the HVAC unit the WDU was blank. The backlight was on, but there was absolutely nothing on the screen, and none of the LEDs were lit. The status light on the control unit was blinking slowly. I shut everything down, rechecked my wiring, and powered up again. Still nothing on the WDU except for the backlight, but now the status light on the control unit just stays lit.
Any ideas whats going on here?
Thanks,
Any ideas whats going on here?
Thanks,