Problem with hydraulic pump.
#1
Posted 26 May 2021 - 12:20 PM
#2
Posted 26 May 2021 - 01:53 PM
Check the battery voltage. Then the voltage at the pump when trying to run the pump if you can. It's possible the motor burned up, but seems unlikely if the sound was normal during the last time raised. If voltage is low at the pump you can inspect the wire to see if there is a butt splice or wire nut that has come loose.
When we first got our camper years ago we had an issue when the battery voltage dropped to the lower useable range. The wiring for the pump on our camper ran up to the power converter and then back down to the pump. The wire gauge was also undersized for the pump load of 20A. All that wire length and the small size caused a sizable power drop by the time the power reached the pump. I ran some larger gauge wire directly to the pump and it has run way better ever since.
#3
Posted 26 May 2021 - 03:35 PM
#4
Posted 27 May 2021 - 10:44 PM
My switch has screw terminals that could come loose. I have star washers for vibration and wrapped with electrical tape to prevent shorting the terminals from bumping against something inside the cabinet. The switch seems durable, but you never know.
You could try a direct connection to see if the pump motor is still working.
#5
Posted 28 May 2021 - 12:33 AM
Thanks. Just changed the fuse. No go. Trying to get to the switch wires.
If you don’t have a multimeter (amps/volts/resistance) getting one would be very helpful in wringing out your circuits. Digital multimeters are not expensive, and they’ve saved the bacon for many of us.
I am haunted by waters
#6
Posted 28 May 2021 - 01:30 AM
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