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Californio Samba Member
Joined: May 17, 2007 Posts: 1305
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Posted: Wed May 12, 2021 3:31 pm Post subject: Water indicator light is always on green |
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As the title says. Even empty, the kitchen water tank light is on green. This is an 87 Syncro, which has the old style tank sensors, not the one in the the cap.
The Bentley doesn't cover this wiring--in fact, 97-32b mistakenly shows early models of campers having the later in-cap sensor.
Any one have a diagram of the early sensor setup? I can't figure it out. |
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Timwhy Samba Member
Joined: January 01, 2009 Posts: 4002 Location: Maine
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Californio Samba Member
Joined: May 17, 2007 Posts: 1305
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Posted: Wed May 12, 2021 5:48 pm Post subject: Re: Water indicator light is always on green |
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I cleaned the inside part of the terminals with 400 grit but no change. I can clean up the outside spade connectors but I'd be surprised if that made a difference.
What I can't tell is why, if the tank is empty, the green light is always on. Something weird. It makes no difference if the spade connectors at the tank are on or off, green light stays on.
I think the sensors in the tank just complete a path to ground, right? |
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Yellow Rabbit Samba Member
Joined: August 31, 2005 Posts: 1146
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Posted: Wed May 12, 2021 6:20 pm Post subject: Re: Water indicator light is always on green |
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Long shot, but it’s not the bottomed green LED for the fridge is it?
Also, is the pump off? I think my my water level turns green when I turn the pump on. |
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Californio Samba Member
Joined: May 17, 2007 Posts: 1305
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Posted: Wed May 12, 2021 6:43 pm Post subject: Re: Water indicator light is always on green |
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No, it's the top one, not the fridge propane-on light. Pump functions normally and the level light stays green with it on or off.
Interesting why yours would turn green when you use the pump, never heard of that one. |
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dobryan Samba Member
Joined: March 24, 2006 Posts: 16501 Location: Brookeville, MD
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fxr Samba Member
Joined: December 07, 2014 Posts: 2321 Location: Bay area CA
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Posted: Thu May 13, 2021 8:12 am Post subject: Re: Water indicator light is always on green |
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I would be checking the ground at the 'little black box' that hides the connections from the tank 'sensors' to the loom at the front of the tank. _________________ Jim Crowther
1984 1.9l EJ22 Westy Wolfsburg Edition
Vespa GTS 300 |
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Californio Samba Member
Joined: May 17, 2007 Posts: 1305
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Posted: Thu May 13, 2021 8:44 am Post subject: Re: Water indicator light is always on green |
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Yes, the only thing I can think of is that the green wire to the panel is somehow grounding out between the tank sensor and the light. I'll post if and when I find what it is. |
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dobryan Samba Member
Joined: March 24, 2006 Posts: 16501 Location: Brookeville, MD
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Posted: Thu May 13, 2021 8:57 am Post subject: Re: Water indicator light is always on green |
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Californio wrote: |
Yes, the only thing I can think of is that the green wire to the panel is somehow grounding out between the tank sensor and the light. I'll post if and when I find what it is. |
You could just run a new wire to bypass the existing wire as a test. And if everything works I'd just abandon the existing wire and use the new one. _________________ Dave O
'87 Westy w/ 2002 Subaru EJ25 and Peloquin TBD
"To travel hopefully is a better thing than to arrive." Robert Louis Stevenson
MD>Canada>AK>WA>OR>CA>AZ>UT>WY>SD
https://www.thesamba.com/vw/forum/viewtopic.php?t=620646
Building a bus for travel in Europe (euroBus)
https://www.thesamba.com/vw/forum/viewtopic.php?t=695371
The Western Syncro build
https://www.thesamba.com/vw/forum/viewtopic.php?t=746794 |
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