12-25-2020, 06:06 PM
I have read this post several times. I think I answered some of my questions.
The Tstat for zone 1 does not activate either the pump or the cozy fans. If that is so, then your question of why doesn’t it work as it should is tied very closely to the relay that is wired to turn the 12Vdc positive signal into a ground signal .
The fact that jumping works says you do NOT have an AH problem, and please don’t rewire the AH until you have a chance to check out the black Bosch relay and determine if it is getting the signal, and then making the ground signal to the AH board.
I will try to take a picture of the relay, and post it in the morning. Dark and cold here now.
The Tstat for zone 1 does not activate either the pump or the cozy fans. If that is so, then your question of why doesn’t it work as it should is tied very closely to the relay that is wired to turn the 12Vdc positive signal into a ground signal .
The fact that jumping works says you do NOT have an AH problem, and please don’t rewire the AH until you have a chance to check out the black Bosch relay and determine if it is getting the signal, and then making the ground signal to the AH board.
I will try to take a picture of the relay, and post it in the morning. Dark and cold here now.
Richard and Rhonda Entrekin
95 Newell, 390 Ex caretaker
99 Newell, 512 Ex caretaker
07 Prevost Marathon, 1025
Maverick Hybrid Toad
Inverness, FL (when we're home
)