HenryD
Senior Member
- Joined
- Dec 16, 2012
- Messages
- 477
- Location
- USA
- Vessel Name
- Seven Tenths (sold)
- Vessel Make
- Mirage / Great Harbour 47
happy new year,
I have a Jabsco Par-Max 7.0 washdown pump that is wired to the 12v bus with a 40amp breaker. To turn on/off the pump, I first need to go into the engine room and power on that breaker.
The pump also has an on-demand pressure switch, which has a 12v wire to the helm station switch.
My normal procedure is to open the thru-hull and turn on the breaker before leaving the dock, and then use the helm switch to activate the pump as needed - washing the bow or cleaning the anchor chain, etc.
I have had two of the pressure switches fail and recently it failed - ON, meaning the pump continue to run for several hours after the washdown had been used. I am trying to figure a way to wire the pump perhaps with a relay or a solenoid so the 36amp draw is from the battery bus, and the lighter wire to the helm controls the on/off.
Can I jumper the pressure switch so it always is on, and then use a relay or solenoid to send power to the pump as needed?
Suggestions?
I have a Jabsco Par-Max 7.0 washdown pump that is wired to the 12v bus with a 40amp breaker. To turn on/off the pump, I first need to go into the engine room and power on that breaker.
The pump also has an on-demand pressure switch, which has a 12v wire to the helm station switch.
My normal procedure is to open the thru-hull and turn on the breaker before leaving the dock, and then use the helm switch to activate the pump as needed - washing the bow or cleaning the anchor chain, etc.
I have had two of the pressure switches fail and recently it failed - ON, meaning the pump continue to run for several hours after the washdown had been used. I am trying to figure a way to wire the pump perhaps with a relay or a solenoid so the 36amp draw is from the battery bus, and the lighter wire to the helm controls the on/off.
Can I jumper the pressure switch so it always is on, and then use a relay or solenoid to send power to the pump as needed?
Suggestions?