I have a VDO Water Tank Level Gauge in my galley that is not working.
While checking the wiring I found the gauge powered by a 2 conductor (black, white) wire. The black wire went to an on-off switch, then to a junction wherein black wires continued to the gauge light, the gauge power, and the 5th blade connector, which I assume is the sender input???????
The white wire also went to a junction that connected it to the gauge light and the gauge power
The 3rd black wire was disconnected from the sender input, so I reconnected it.
When the on-off button is moved to the on position, the light comes on and the needle moves to the full position. (I know the tank is only about 1/2 full).
Unless VDO works in a way I do not understand, it looks to me like the sender wire is missing and the previous owner wired the sender blade connector to the bundle of wires connected to ground.
Any thoughts?
I am going to try to trace the sender wire from the water tank, but most of the bundles run behind the fuel tanks making them very hard to trace.
While checking the wiring I found the gauge powered by a 2 conductor (black, white) wire. The black wire went to an on-off switch, then to a junction wherein black wires continued to the gauge light, the gauge power, and the 5th blade connector, which I assume is the sender input???????
The white wire also went to a junction that connected it to the gauge light and the gauge power
The 3rd black wire was disconnected from the sender input, so I reconnected it.
When the on-off button is moved to the on position, the light comes on and the needle moves to the full position. (I know the tank is only about 1/2 full).
Unless VDO works in a way I do not understand, it looks to me like the sender wire is missing and the previous owner wired the sender blade connector to the bundle of wires connected to ground.
Any thoughts?
I am going to try to trace the sender wire from the water tank, but most of the bundles run behind the fuel tanks making them very hard to trace.