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02-27-2011, 09:52 AM
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#1
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1 Rivet Member 
1973 31' Sovereign
Montalba
, Texas
Join Date: Mar 2008
Posts: 14
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Need help with control panel
I have changed out my converter and fuse panel. i have no power at control panel i have found a gray wire that is hot but do not know where it connects to in the control panel. no other electrical issues .can anyone help.
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02-27-2011, 09:58 AM
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#2
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Site Team
2002 25' Safari
Dewey
, Arizona
Join Date: Mar 2005
Posts: 15,616
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Is the control panel dead or is it just the power on indicator that is not working?
__________________
Richard
Wally Byam Airstream Club 7513
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02-27-2011, 10:28 AM
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#3
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Rivet Master 
1974 31' Excella 500
Charleston
, South Carolina
Join Date: Nov 2010
Posts: 1,073
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This may help, may not.
Attached is the control panel section from the 75 Service manual.
It shows the blue and white from the tv attached to the control panel and otherwise just the wiring harness. Or, I could have missed something.
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As I grow older, I pay less attention to what men say. I just watch what they do.
- Andrew Carnegie
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02-27-2011, 12:01 PM
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#4
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x
XXXX
, XXXX
Join Date: Jun 2010
Posts: 2,601
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Control Panel Wiring
The grey wire should attach to the main harness connector just beside the larger white wire ans above the red wire. On the other side of the main harness connector the grey wire has a bullet connector attached to it and connects to a white wire for the power on light. I have attached a wiribg diagram for the control panel and some pictures of the main harness connector. I am holding the grey wire with one finger. The first pic shows the harness from the trailer, the second shows the harness for the control panel and the third shows the bullet connector and the power on light.
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02-27-2011, 12:45 PM
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#5
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1 Rivet Member
1973 31' Sovereign
Montalba
, Texas
Join Date: Mar 2008
Posts: 14
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Quote:
Originally Posted by azflycaster
Is the control panel dead or is it just the power on indicator that is not working?
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control panel and indicator not working
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02-27-2011, 01:10 PM
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#6
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1 Rivet Member
1973 31' Sovereign
Montalba
, Texas
Join Date: Mar 2008
Posts: 14
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i have connected the gray wire the way it shows and connected black wire to ground the way andy suggested in early post. the light come on but when electric power is disconnected the stays on. and i have on power at panel ie radio and no other functions at panel
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02-27-2011, 01:35 PM
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#7
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Site Team
2002 25' Safari
Dewey
, Arizona
Join Date: Mar 2005
Posts: 15,616
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The original univolt had a separate line that powered the power on light. It was isolated from the battery and only operated from the 12 volt line from the univolt. With another converter the light will not function correctly.
My control panel (75) has a separate fuse located at the panel. I am not sure if it was the same in 73.
__________________
Richard
Wally Byam Airstream Club 7513
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02-27-2011, 01:52 PM
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#8
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1 Rivet Member
1973 31' Sovereign
Montalba
, Texas
Join Date: Mar 2008
Posts: 14
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yes i have a fuse in the panel and it is good
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02-27-2011, 01:53 PM
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#9
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Site Team
2002 25' Safari
Dewey
, Arizona
Join Date: Mar 2005
Posts: 15,616
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Quote:
Originally Posted by mkcox
yes i have a fuse in the panel and it is good
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Do you have 12 volts at the fuse?
__________________
Richard
Wally Byam Airstream Club 7513
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02-27-2011, 02:09 PM
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#10
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1 Rivet Member
1973 31' Sovereign
Montalba
, Texas
Join Date: Mar 2008
Posts: 14
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no 12 volts at fuse
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02-27-2011, 02:27 PM
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#11
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Site Team
2002 25' Safari
Dewey
, Arizona
Join Date: Mar 2005
Posts: 15,616
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On my 75 TW the power to the CP is on circuit number 5. I would go back to the new fuse panel and verify that each circuit is connected and that the fuses are all still good.
Also see if any other 12 volt items are not working. Check all the lights and motor including the jack and water pump. I suspect that the entire circuit is dead.
__________________
Richard
Wally Byam Airstream Club 7513
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02-27-2011, 02:35 PM
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#12
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1 Rivet Member
1973 31' Sovereign
Montalba
, Texas
Join Date: Mar 2008
Posts: 14
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yes i have 12 volts at panel now
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02-27-2011, 02:36 PM
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#13
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Site Team
2002 25' Safari
Dewey
, Arizona
Join Date: Mar 2005
Posts: 15,616
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What changed?
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Richard
Wally Byam Airstream Club 7513
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02-27-2011, 02:42 PM
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#14
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1 Rivet Member
1973 31' Sovereign
Montalba
, Texas
Join Date: Mar 2008
Posts: 14
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i connected the wire from car battery and i have power to the jack and to panel but the water pump and holding tanks will not light up
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02-27-2011, 02:48 PM
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#15
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Site Team
2002 25' Safari
Dewey
, Arizona
Join Date: Mar 2005
Posts: 15,616
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That circuit gets it power at one end from the fuse panel, but also feeds power to the battery from your TV. Since this all started with replacing the fuse panel, I would focus in on that area first.
__________________
Richard
Wally Byam Airstream Club 7513
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02-27-2011, 02:55 PM
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#16
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x
XXXX
, XXXX
Join Date: Jun 2010
Posts: 2,601
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The 73 service manual shows a seperate red wire powering the control panel. I just looked at the circuit board for the control panel. It is fed 12VDC+ from the red wire. On the other side of the fuse fed from the circuit board is the 12VDC+ for the water pump, battery condition guage and the panel light.
The holding tank lights should not light up unless there is waste water in the tank.
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02-27-2011, 02:56 PM
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#17
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1 Rivet Member
1973 31' Sovereign
Montalba
, Texas
Join Date: Mar 2008
Posts: 14
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only thing i did not hook up is the ammeter wires everything esle is connected not sure about tv it works on 110
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02-27-2011, 03:18 PM
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#18
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1 Rivet Member
1973 31' Sovereign
Montalba
, Texas
Join Date: Mar 2008
Posts: 14
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thanks guys i do now have power to control panel water pump and other functions working properly no indictor light but i can live with that for now thanks again
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