Plastimo Fuel Sender problems ???

[karlT]

I have the above fitted on my fuel tank, vertical type. My boat is mainly afloat and continuously bobbing around.

When the battery is isolated the fuel gauge shows empty, when the battery is on the fuel gauge is showing full. The tank is half full and I have removed the sender to ensure the float is not jammed. The system has worked for the past 3 years without problem.

Is there an easy way to test the sender to see if this has failed.

[Nos4r2]

Originally Posted by karlT

I have the above fitted on my fuel tank, vertical type. My boat is mainly afloat and continuously bobbing around.

When the battery is isolated the fuel gauge shows empty, when the battery is on the fuel gauge is showing full. The tank is half full and I have removed the sender to ensure the float is not jammed. The system has worked for the past 3 years without problem.

Is there an easy way to test the sender to see if this has failed.

Disconnect the sender and stick a variable resistior on the wires to the gauge. If you can manually dial in a gauge reading rather than just full or empty, your sender is U/S.

[Jizm]

If you can take it out you could do a resistance check across the earth and the signal terminals while moving the float up and down. Without getting too technical the resistance figure should alter as the float is moved. I'm with Nos though, reckon it's dead.