Hi Monacoers, I am new to the group.
I am having trouble with the low air alarm. I discovered the buzzer connector disconnected and reconnected it. It operates normally, beeper & low air light is on until the air pressure reaches around 70 psi. After reaching 120 psi, when I put the transmission in gear, the beeper comes on but not the low air light. The beeper sound is different than the low air sound. I suspected the sending unit on the front air tank however disconnecting the sending unit does not stop the alarm when the transmission is in gear. I removed the relay marked Bell-1 in the Monaco 2 box in the left front bay cabinet and everything works as it should i.e. beeper and light on when pressure is below 70 psi, goes off above 70 psi. The beeper and light do not come on when the transmission is in gear.
What else does the Bell-1 relay do? could it disable other alarms.
What does the sending unit do on the front air tank, disconnecting it had no effect that I could see?
See photos below. IMG 2122 is the sending unit on the tank. IMG 2125 is the relay that goes in the box on the right of it.
Any help or wiring diagrams would be greatly appreciated.
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IMG_2126 (2).zip