I have just replaced an old honeywell mechanical room stat with the 907.
I now find that it keeeps starting the boiler even when the main programmer is in the off position. When room temperature is above target temperature it still keeps starting up even though the little flame signal is not showing.
It keeps starting up even when it is in the"off" position
I wired the live wire to "A" and the yellow switch wire to "B" as per the wiring diagram, I then blanked off the neutral wire that was used in the old stat.
Is it possible that the wiring is wrong?
Any help may stave off a nervous breakdown!
I now find that it keeeps starting the boiler even when the main programmer is in the off position. When room temperature is above target temperature it still keeps starting up even though the little flame signal is not showing.
It keeps starting up even when it is in the"off" position
I wired the live wire to "A" and the yellow switch wire to "B" as per the wiring diagram, I then blanked off the neutral wire that was used in the old stat.
Is it possible that the wiring is wrong?
Any help may stave off a nervous breakdown!