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Old 07-02-2015, 06:33 AM   #1
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Need Basement Air Suggestions ASAP

I am presently camping on the beach at Hunting Island State Park. Have been here 6 days no problem. I have the basement air system and am plugged into a 30 amp pedestal (no 50 amp available).

Woke up this morning and noticed it was getting warm in the coach and figured out the coach had no power. I shut off AC and went to campground source and discovered breaker was tripped. Reset and went in and turned on AC. It came on and and I noticed the power management system was showing the amps fluctuating from 20-27 amps and then the breaker tripped again.

Again I shut everything down and went out and reset the breaker. At this point the campground pedestal all but blew up. Lots of popping and lots of smoke. I kicked the shore power cord out of the outlet and am now waiting for the campground store to open so they can have someone work on the pedestal.

I have now started the generator and have full power inside and the power management board is showing was pulling a constant 22 amps until a minute ago when it dropped to 15 amps (I assume that is because the temp has dropped to a point where compressor #2 just dropped off).

As I said, everything has worked perfectly for 6 days. Once the pedestal is repaired, is there anything inside the coach I should checkout?

I apologize for how long this post is, but have always received good advice from you folks.
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Old 07-02-2015, 07:00 AM   #2
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GaDawgFan;

I had something similar happen a few years ago. I was plugged into 30A and drawing 26 -27 amps. It was the end of July and HOT. The power pedestal kept tripping off. When the electrician checked the pedestal he found loose connections on the incoming power lugs. He checked everything for loose connections and it worked fine after that. Nothing was damaged in the coach.

My guess is there was a loose connection or incorrect wire size in the pedestal (both cause over heating) and the excessive heat melted the wire covering and it started to arc. Once that happens it is all down hill from there. Good luck and please post back what they find as we all learn from each other.

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Old 07-02-2015, 07:00 AM   #3
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Originally Posted by GaDawgFan View Post
I am presently camping on the beach at Hunting Island State Park. Have been here 6 days no problem. I have the basement air system and am plugged into a 30 amp pedestal (no 50 amp available).

Woke up this morning and noticed it was getting warm in the coach and figured out the coach had no power. I shut off AC and went to campground source and discovered breaker was tripped. Reset and went in and turned on AC. It came on and and I noticed the power management system was showing the amps fluctuating from 20-27 amps and then the breaker tripped again.

Again I shut everything down and went out and reset the breaker. At this point the campground pedestal all but blew up. Lots of popping and lots of smoke. I kicked the shore power cord out of the outlet and am now waiting for the campground store to open so they can have someone work on the pedestal.

I have now started the generator and have full power inside and the power management board is showing was pulling a constant 22 amps until a minute ago when it dropped to 15 amps (I assume that is because the temp has dropped to a point where compressor #2 just dropped off).

As I said, everything has worked perfectly for 6 days. Once the pedestal is repaired, is there anything inside the coach I should checkout?

I apologize for how long this post is, but have always received good advice from you folks.

I'm guessing, since all is well with generator power, that you will be fine with a new breaker or repaired wiring. I had the exact same experience last Sept in the Keys. The breaker died and a new breaker totally solved the problem.


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Old 07-02-2015, 07:01 AM   #4
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I think your coach will be fine. The 30 amp plugs at many state parks are simply worn out. Get the park maintainance person to put in a new receptacle and a new 30 amp circuit breaker. Have a look at your 30 amp male plug for signs of arcing.
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Old 07-02-2015, 07:08 AM   #5
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I appreciate the replays. I have to give Hunting Island credit. They hay a maintenance guy here in 5 minutes. He is going to replace the breaker and the outlet, just as you guys have suggested. I am going to go ahead and replace my 50 amp to 30 amp connector. It looked s though it had over heated.
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Old 07-02-2015, 07:56 AM   #6
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Crisis averted! 30 amp plug and breaker replaced in pedestal. All is well! Thanks for all that responded. Now I am off to load the cooler, grab the fishing gear and head to the beach.
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Old 07-02-2015, 09:34 AM   #7
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You might want to consider a Surge Guard to protect your coach from shorts, surges and sags. It can pay for itself pretty quickly when you start adding up the cost of items that would need to be replaced if you have bad wiring in the pedestal that sends a jolt of electricity down the wrong wire.
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Old 07-02-2015, 09:50 AM   #8
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You might want to consider a Surge Guard to protect your coach from shorts, surges and sags. It can pay for itself pretty quickly when you start adding up the cost of items that would need to be replaced if you have bad wiring in the pedestal that sends a jolt of electricity down the wrong wire.

I second this recommendation & suggest a Progressive Industries PI HW50c. Here's a picture:

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Use a dogbone for 30 amp.


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Old 07-03-2015, 02:54 AM   #9
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gadawgfan,
my guess is that the pedestal voltage was low. when voltage is low, amp draw increases. you need to monitor voltage as well as amps.
when on 30 amps, I turn off the cb for the #2 ac system and still watch the voltage. low voltage can cause problems with motors, electronics, and other systems.
IMHO a surge protecter is a Necessity.
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Old 07-03-2015, 07:55 AM   #10
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While a Surge Protector is nice an Autoformer that boosts brownouts back to an acceptable range is preferable. I have not had any more burnt hard start caps in my AC or other brownout damage in my coach since installing an Autoformer 10 years ago. Before that I was constantly faced with low camp voltage shutting down the Surge Protector and leaving me with the choice of going without and moving the kids along with the pets into the rec center or other conditioned space or hitting the bypass taking my chances with loosing equipment.

Low voltage and brownouts cause accumulated damage to the electrical components of your coach that eventual result in a premature failure.
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Old 07-03-2015, 08:21 AM   #11
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While a Surge Protector is nice an Autoformer that boosts brownouts back to an acceptable range is preferable. I have not had any more burnt hard start caps in my AC or other brownout damage in my coach since installing an Autoformer 10 years ago. Before that I was constantly faced with low camp voltage shutting down the Surge Protector and leaving me with the choice of going without and moving the kids along with the pets into the rec center or other conditioned space or hitting the bypass taking my chances with loosing equipment.

Low voltage and brownouts cause accumulated damage to the electrical components of your coach that eventual result in a premature failure.

Since low voltage is the single most likely electrical issue we face as RVers, the Autoformer is a great piece of equipment to have. They generally also have a basic "surge/spike" protection circuit built in. The problem is that socking up a surge will likely fry the circuit and the Autoformer will require a rebuild. The Progressive EMS is designed to be field repairable and is of modular construction.

I'm a full timer and am plugged into a wide range of pedestals. Some new and some not. I have, over time, installed both an Autoformer which is first in line and the a Progressive EMS. They are both hard wired into the coach and are active every time the power cord is plugged in.


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Old 07-03-2015, 01:05 PM   #12
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This is great information. I appreciate it.
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Old 07-03-2015, 01:13 PM   #13
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I have a small RV park.. You name it I have had it happen.. I can only began to tell you all the problems Compressors/Air conditioners , and electric heaters cause in the electrical system cause... The problems are not the breakers . But the IDIOTS that see a 30 amp breaker then Load it down to 27/30 amps..... Let me explain to you if a breaker is 30 amps. when new every time it is tripped the value goes down. after 20 trips it may only be a true 20 amp breaker... Now put the problem where it should be..... Is it the breakers fault, or the 8&^%. That over loaded it?
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Old 07-03-2015, 01:25 PM   #14
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I forgot to post .. The Auto transformer Has an inverse relation ship with amp and Volts.. That being said If you are reading 106 volts with 30 amps. and you want 120 volts the amps will drop accordingly , to about 23 amps. I shell keep my opium to my self about transformers.. I have herd salesmen describe them as though they actually produce Voltage and/or amps... Well folks they DON'T;
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