When I put on tri gloss I get nothing. The other bay is getting tri gloss. Any thoughts?
I'm reading this two ways: 1 bay works fine, 1 bay does not work but one tri foam pump runs when "wash" is selected OR when Tri foam is selected it comes out in the other bay?
I think you mean the first one. It looks like it is time to get your voltmeter out.
1 Select Tri foam in the bay and check for voltage at rotary switch. (BTW: now might be a good time to map out the positioning on the rotary switch if you do not have a schematic somewhere already.) If you do not have voltage coming out of the switch there may be a short, loose wire or bad switch. ( I had the internal parts of a rotary switch fall apart a couple of weeks ago and it caused all kinds of symptoms)
2 If you do have power coming out of the switch follow the wires to the tri foam solenoids and check for voltage there. Is there a solenoid for the floret pump? no power? check for shorts or loose wires.
3 If step 1 and 2 have power it is time to look at any timers that control the tri foam pumps. The timer would be what controls the sequencing for the color changes.
it might be helpful to someone if you let us know what brand equipment you have.