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Old 07-10-2016, 05:17 PM   #57
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Here is a post to let folks know why is going on. I used a number og diagram that Waiter21 sent to go over some of the wiring and look for problems. I didn't find anything but it may have helped tighten a connection or ground.
Most importantly I revisited the rotary dial control itself. It had passed ford's testing procedure previously but that is a continuity test and would only find an open circuit or a short. With the switch in place both the incoming and outgoing sides showed the dip in current. leading me to think that the problem was before the switch. When I took the switch out of the circuit and bridged the contacts in the connector the lights worked properly. I think there is a fault in part of the unneeded electronics in that switch assembly. Since that circuit is always hot I also suspect that my battery life problem is there too. With the switch out there is no phantom load.
My fingers are crossed! The switch is in the mail. I will report back.
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A 15yo RV is like a Steam Locomotive. Run time/Maintenance is about 65/35. For every 65 hours in use it needs 35 hours of work.
http://i875.photobucket.com/albums/a...f.jpg~original
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Old 07-15-2016, 11:03 AM   #58
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The parking lights no longer blink. The actual cause is still uncertain. Before buying a new light switch though I would suggest checking your #41 fuse on the fuse box on the "firewall" and see if it is blown. More to follow.
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A 15yo RV is like a Steam Locomotive. Run time/Maintenance is about 65/35. For every 65 hours in use it needs 35 hours of work.
http://i875.photobucket.com/albums/a...f.jpg~original
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Old 07-25-2016, 04:45 PM   #59
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In the end the actual problem was a terminal block under the "hood" that leaked power between + and -. I am unsure of the route that the semi short or ground feedback took but when the block was eliminated the instrument lights came on and the #41 fuse stopped blowing. I suspect that the feedback through the instrument lights damaged the first headlamp switch causing the lights to blink. The terminal block fed the audio system which was connected to the lighting system so that the audio lights would dim at night. I would never have figured it out if I had not, on the suggestion of a friend, tested the power supply to the audio. The + was 12v but the ground was 9v! It is amazing how ground problems can travel.
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A 15yo RV is like a Steam Locomotive. Run time/Maintenance is about 65/35. For every 65 hours in use it needs 35 hours of work.
http://i875.photobucket.com/albums/a...f.jpg~original
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