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10-21-2019, 09:48 AM
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#1
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Senior Member
Join Date: Nov 2011
Posts: 138
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Headlights
My headlight switch is overheating with headlights on, no with running lights. Should I replace headlight bulbs with leds and will this help. 97 dutchstar dp
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10-21-2019, 10:06 AM
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#2
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Senior Member
Join Date: May 2017
Location: Metamora, MI
Posts: 5,518
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The headlight switch should not be "overheating"
First - how are you determining "overheat" Is it getting warm? A certain amount is to be expected.
A bad ground can be contributing.
LED lights generally take less amperage for same light output so that would help. But...there is an issue with the electrical system that needs attention if it truly is overheating.
__________________
2002 Newmar Mountain Aire Limited 4370 w/ Spartan K2 and Cummins 500hp
ASE Master Certified (a long.....time ago...)
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10-21-2019, 10:46 AM
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#3
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Senior Member
Join Date: Nov 2011
Posts: 138
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Headlights
Quote:
Originally Posted by Dav L
The headlight switch should not be "overheating"
First - how are you determining "overheat" Is it getting warm? A certain amount is to be expected.
A bad ground can be contributing.
LED lights generally take less amperage for same light output so that would help. But...there is an issue with the electrical system that needs attention if it truly is overheating.
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I have replaced the ground, it is making good contact. The terminal on the switch gets hot enough to burn if you touch it.
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10-21-2019, 11:00 AM
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#4
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Senior Member
Join Date: Jul 2014
Posts: 35,349
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Unplug the headlamp bulbs and see if it still gets hot.
If it does, you have a short or overload somewhere.
It worked for years so a LED bulb change isn't the answer.
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10-21-2019, 11:07 AM
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#5
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Senior Member
Join Date: Nov 2011
Posts: 138
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I unplugged headlights and switch doesn’t get hot
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10-21-2019, 11:54 AM
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#6
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Senior Member
Join Date: Nov 2011
Posts: 138
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All suggestions are appreciated.
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10-21-2019, 12:11 PM
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#7
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Senior Member
Join Date: Apr 2015
Posts: 151
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If it is a ford switch then replace the switch, ford had problems some times with
there switches over heating.
Bob
__________________
05 Bounder 34 DP 300CAT
04 Tahoe 4/4
Rving over 50yrs
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10-21-2019, 12:57 PM
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#8
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Senior Member
Join Date: Nov 2011
Posts: 138
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Headlights
Chevy switch, replaced it last year after it was doing the same thing, Ford headlights.
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10-21-2019, 12:58 PM
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#9
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Senior Member
Join Date: Nov 2011
Posts: 138
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Also replaced the ground
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10-21-2019, 01:53 PM
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#10
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Senior Member
Join Date: May 2017
Location: Metamora, MI
Posts: 5,518
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Does the light switch control a relay or drive the headlight bulb directly? What ground did you address? There are probably several. Post a link to the schematic.
__________________
2002 Newmar Mountain Aire Limited 4370 w/ Spartan K2 and Cummins 500hp
ASE Master Certified (a long.....time ago...)
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10-21-2019, 02:11 PM
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#11
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Senior Member
Join Date: Nov 2011
Posts: 138
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Don’t know about a relay, I’m sure there is one, the ground from the headlight wiring harness.
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10-21-2019, 03:04 PM
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#12
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Senior Member
Join Date: May 2017
Location: Metamora, MI
Posts: 5,518
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You need to find the electrical schematic to know what to do next.
__________________
2002 Newmar Mountain Aire Limited 4370 w/ Spartan K2 and Cummins 500hp
ASE Master Certified (a long.....time ago...)
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10-21-2019, 05:14 PM
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#13
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Senior Member
Join Date: Aug 2017
Posts: 698
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The switch is getting hot. The SWITCH is bad. It has developed a high-resistance connection within the switch. That bad connection generates heat when current passes through it.
Installing LED headlights will fix the problem...for a while. They always (not “generally”) draw less current than an incandescent lamp. Less current = less heat. But you would be treating the symptom, not the disease.
It’s not a relay.
It’s not a ground.
It’s the switch.
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10-21-2019, 05:34 PM
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#14
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Senior Member
Join Date: Mar 2009
Posts: 1,700
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Or............your problem could be a loose connection at the switch?
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