Go Back   iRV2 Forums > iRV2.com COMMUNITY FORUMS > Vintage RV's
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Thread Tools Search this Thread Display Modes
Old 08-10-2013, 09:44 PM   #1
Join Date: Aug 2013
Posts: 66
Hot Class A light Switch 90 Hawkins MC

My main light swith is very hot to the touch, I have only had this Hawkins 36 ft, cat 3208 for a week, While fixing all the little stuff, I repaired all the rear Tail/stop lights there are 4 on each side, plus one stop light in the middle rear, they all were corroded somewhat but i got them all working again, after returning to the drivers seat i smelled something hot and sure enough the headlight switch was so hot i could not leave my hand on it when i reached under the dash, my first thought is to much resistance with all the corroded lamp holders, I am thinking of adding led stop/tail lamps and remove the existing 1157 lamps, also changing the upper marker red lights with leds, anyone have similar problems? I could also change all the other marker lights to leds if anyone has any tohughts please let me know. Thanks Muledeer2

Muledeer2 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 08-10-2013, 11:13 PM   #2
Senior Member
Skip426's Avatar

Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 11,954
Welcome to iRV2, main problem with the older headlight switches overheating , is usually the dimmer control for the dash gauges, it's a big rheostat and can generate a lot of heat through the knob.
Problems with tail lights will usually blow a fuse , before O'heating the switch, and the headlights are on an internal circuit breaker in the switch, so if their in trouble they start flashing.
Most MHs have a headlight switch from an older 73>76 Chev P/U that can be purchased at any auto parts store.

99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 08-10-2013, 11:27 PM   #3
Senior Member
stink's Avatar
Join Date: Apr 2012
Posts: 1,414
Resistance in a light socket will lower current. Current is what makes heat in a lamp, corroded connection and toaster. Resistance will lower current just like a kink in a garden hose will reduce water flow. Fuses protect from to much current-ampers. Fuses are rated in ampers as example 20 amp fuse. Resistance lowers current but makes heat so a fuse will not blow with a resistance in a circuit. Your light switch, just as Skip says is probably the dimmer rheostate for the guage light circuit. Turn the switch knob to turn up the guage lamps to full and the resistance will drop and less heat should result. Hope this helps.
Dave and Laura & two cats
02 Discovery with Accord toad
retired auto rv tech and teacher, wife rt nurse
stink is offline   Reply With Quote

class a

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:18 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.