Hi, guys. I just finished the plumbing for my new KAA2 and I am having an issue with my combustion motor(the squirrel cage motor) not running. I have two zones set up and both my circulators pump water when a request for heat is made, so I believe they are correct. I am sure I did something wrong, as my auxiliary fan runs constantly (the little white one), but I think the squirrel cage fan should be running constantly instead.
Most everything was pre-wired from the factory, which was nice, so all I had to do was wire from the junction box they provided to the stoker unit and fans. In the junction box there were 4 wires marked with a piece of tape labeled "to unit", one white, one red, and two black wires twisted together. The back of the stoker unit has 4 wires, two black, one red, and one white. From the junction box to the back of the unit, I went white to white, red to red, and then the the two black that are together to the two black on the back of the unit. What did I do wrong? I have seen a few different wiring diagrams online, but I can't see what's wrong. Any help is appreciated.
SOLVED! For anyone with the same confusion, from your junction box to stoker unit and fans, go red from red jct to red on stoker, white from jct to white AND one black on stoker, then from black jct to other black on stoker.
Last edited by farrell2k
on Mon Nov 12, 2012 2:46 pm, edited 1 time in total.