Good Sam Club Open Roads Forum: Fifth-Wheels: melting plug
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Fifth-Wheels

Open Roads Forum  >  Fifth-Wheels

 > melting plug

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 4  
Next
dustinl

texas

New Member

Joined: 06/16/2019

View Profile


Offline
Posted: 01/11/20 07:09pm Link  |  Quote  |  Print  |  Notify Moderator

in the past 14 months i have had to replace the 30A plug that plugs into the rv parks box at least 3 times because 1 of the prongs overheats and melts my plug. need ideas on what might be the cause

Flute Man

Payson, Arizona

Senior Member

Joined: 03/21/2019

View Profile


Offline
Posted: 01/11/20 07:18pm Link  |  Quote  |  Print  |  Notify Moderator

Sounds like the park needs to replace or repair the socket in their pedestal. Poor connections cause heat.


Jerry Parr
05 Mandalay 40B
Cat C7 350
04 Honda CR-V
Ham Radio K7OU
Retired EE
[email protected]
602-321-8141
Full-timer

enblethen

Moses Lake, WA

Senior Member

Joined: 01/05/2005

View Profile






Posted: 01/11/20 07:19pm Link  |  Quote  |  Print  |  Notify Moderator

It is being overloaded for some reason.
I would start checking the connections in your rig.
Check all the connections in the 120 volt power distribution panel. Look for melted insulation.
Find someone with an Amprobe to check amperage of the rig when connected. It is possible that something is going to ground in shore power cord. Maybe screw through it or bad metal clamp.
Add you rig to signature, make and model. This would help identifing known issues with that particular unit from others experience.


Bud
USAF Retired
Pace Arrow

2003 Chev Ice Road Tracker


pianotuna

Regina, SK, Canada

Senior Member

Joined: 12/18/2004

View Profile


Offline
Posted: 01/11/20 07:37pm Link  |  Quote  |  Print  |  Notify Moderator

You can burn up a 30 amp plug even on a 15 amp shore power supply. It has to do with low voltage. Then items such as the roof air conditioner draw more amps. That causes the plugs to heat.

I now limit my 30 amp shore power to 24 amps. I've not burned up a single plug in the last 12 months.


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp hours of AGM in two battery banks 12 volt batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

BB_TX

McKinney, Texas

Senior Member

Joined: 04/04/2005

View Profile


Offline
Posted: 01/11/20 07:59pm Link  |  Quote  |  Print  |  Notify Moderator

A 30 amp service can only supply 30 amps. If the current rises much above 30 amps the breaker will trip. If the equipment is properly constructed and in good condition it will not over heat at 30 amps or some design amount above that. Low voltage cannot make the current increase more than that 30 amps without causing the breaker to trip. And the RV cannot overload the circuit without also tripping the breaker. Again, if properly constructed and in good condition.

Heat is caused by too much current flowing thru a resistance. A bad, worn, or loose receptacle will cause the plug to overheat and possibly melt the plug. Likewise a bad, worn, or loose plug will cause the plug to overheat. A loose wire in either will do the same. All of those add resistance to the circuit.

time2roll

Southern California

Senior Member

Joined: 03/21/2005

View Profile



Good Sam RV Club Member


Posted: 01/11/20 08:15pm Link  |  Quote  |  Print  |  Notify Moderator

Are you replacing just the end or getting a new cord with premoulded end?
In general I think the replacement ends are better.

I recommend this one:
https://www.progressiveindustries.net/tt-30p

Although poor connection in the worn and corroded outlet is often the issue.


2001 F150 SuperCrew
2006 Keystone Springdale 249FWBHLS
675w Solar pictures back up

Dick_B

Palos Heights, IL USA

Senior Member

Joined: 07/10/2002

View Profile



Good Sam RV Club Member

Offline
Posted: 01/11/20 08:16pm Link  |  Quote  |  Print  |  Notify Moderator

I'm wondering if a 30 amp adapter would work for you. If it is a post problem the adapter might take the hit leaving the cable in tact. Just my $.03.


Dick_B
2003 SunnyBrook 27FKS
2011 3/4 T Chevrolet Suburban
Equal-i-zer Hitch
One wife, two electric bikes (both Currie Tech Path+ models)

MNRon

Tennessee

Senior Member

Joined: 08/18/2007

View Profile



Good Sam RV Club Member

Offline
Posted: 01/11/20 08:24pm Link  |  Quote  |  Print  |  Notify Moderator

Not suggesting user error, but are you hot plugging or removing a lot (put plug in or out with pedestal power switch on and heavy loads on); or is your plug shape preventing you from fully inserting it in the socket? Somehow you are getting more resistance (heat) at your contact.


Ron & Pat
2013 Silverado 3500 Duramax SRW
2019 VanLeigh Vilano 320 GK

ItsyRV

Desert SW

Senior Member

Joined: 10/02/2018

View Profile



Good Sam RV Club Member


Posted: 01/11/20 08:32pm Link  |  Quote  |  Print  |  Notify Moderator

Are you using the same outlet all the time when this occurred or were you at different locations?

Is it just one prong of the plug and is it always the same prong?


1994 Itasca SunDancer 21RB - Chevy G-30 chassis.


cavie

Port Charlotte Fl/ Hindsdale MA

Senior Member

Joined: 04/28/2019

View Profile


Offline
Posted: 01/11/20 09:45pm Link  |  Quote  |  Print  |  Notify Moderator

If this is happening at the same park the PED needs a new outlet.


2011 Keystone Sprinter 323BHS. Retired Master Electrician. Retired Building Inspector.

All Motor Homes are RV's. All RV's are not Motor Homes.

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 4  
Next

Open Roads Forum  >  Fifth-Wheels

 > melting plug
Search:   Advanced Search

Search only in Fifth-Wheels


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2020 CWI, Inc. © 2020 Good Sam Enterprises, LLC. All Rights Reserved.