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Old 03-08-2015, 06:14 PM   #41
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Originally Posted by wmtire View Post
She is trying to run an electric heater, with a hair dryer?

As explained, she is limited to 30 amps total.

Another way to look at this is

watts = voltage x amps
or
3600 watts = 120 volts X 30 amps

She cannot run over 3600 watts of things or 30 amps.

a 1500 watt hair dryer and a 1500 watt electric heater are 25 amps together. 1500 watts divided by 120 volts = 12.5 amps
As an additional note... Most breakers will only take an 80% load for a short time before tripping.. So the 30 amp breaker will be good until about 24 amps (2,880 watts).. After that you start getting into the trip curve of the breaker, and depending on the manufacturer, age and breaker design will impact how long you can run above 24 amps...
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Old 03-08-2015, 07:01 PM   #42
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A 30A RV outlet and a 20A household outlet in your pedestal does not mean you can run 50A from the pedestal. It generally means you have two ways to access power but only 30A to work with.
Most every pedestal I've seen had separate breakers for the 20 amp and 30 amp receptacles .. Then I believe you would have 50 amps of 120 available...

Joe
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Old 03-08-2015, 07:18 PM   #43
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I had the electrician wire a 120 box for elect. yard tools.
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Old 03-09-2015, 04:13 AM   #44
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Thank you all , she is going to follow instructions and I will post results when she texts me.
Some hair dryers operate right at the limit of a 15A circuit breaker. DW's draws 1875 watts. I know you said main breaker and that would be 30A. It could be 10 years old in your 2005 trailer. And weakened by age / use. If hair dryer has a low setting, try using low and see if that works. Also, what else is mom operating when the breaker pops off? Micro and water heater are both big power consumers. Micro or electric water heater AND hairdryer will be right up on 30A. Try turning off electric water heater and not using micro and see if that solves.
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Old 03-09-2015, 04:26 AM   #45
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Does not matter if new or not, or worked before. Loose electrical connection with a quick, high demand can result in an arc and damage things. This is why I advised pulling the shore power and trying to reset the breaker. If it doesn't reset, you have repairs to do on the power center and should also check the feed. If it resets, you are lucky, and there's something wrong with your shore power connection between the pole and your power center.
I agree with all except the repair to the power center, breakers do go bad. Lets hope that's all it is. My main 30 amp took a dive, but it was just the breaker itself. Also had a bad breaker for my A/C. When I would switch it to high speed the breaker would trip after a minute or two. Thought I had a bad motor winding. Decided to change the breaker first being it wasn't pulling enough amps to trip the breaker. Changed the breaker for 12.00 bucks, and it's been find for 3 years and running....
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Old 03-09-2015, 08:03 AM   #46
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Thanks for all the great tips , what a great resource this forum is.
One more , Can low 12V voltage make the CD Detector go off ?
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Old 03-09-2015, 09:15 AM   #47
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Originally Posted by rkymtn57 View Post
Thanks for all the great tips , what a great resource this forum is.
One more , Can low 12V voltage make the CD Detector go off ?
Do you mean it is beeping.....or the alarm is sounding off?
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Old 03-09-2015, 09:33 AM   #48
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i think it is alarming....this happened to me before , ended up replacing...converter.

I dont know what is going on will have to call Camper Clinic again i guess.
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Old 03-09-2015, 09:43 AM   #49
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Originally Posted by meganjoe View Post
Most every pedestal I've seen had separate breakers for the 20 amp and 30 amp receptacles .. Then I believe you would have 50 amps of 120 available...

Joe
This is correct, but up stream from the pedestal is a breaker that serves several pedestals and that breaker is generally chosen to be 30A times the number of breakers serviced. If no one else is in sites adjacent to you or they are not using power, you may have more than 30 A. by using both outlets. If all others on your circuit are at 30A or above you will not.
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Old 03-09-2015, 10:02 AM   #50
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In Ontario according to Electrical Safety Authority rules. The wire that would feed the pedestal would have to be able to supply both breakers that each feed the 30 amp and 20 amp outlet. If there is only a 30 amp breaker feeding both the 30 amp and 20 amp outlets that is against code. In any park I have ever been in there is enough power (50 amps) for a 30 amp and 20 amp receptacles.

The OP may very well be able to assist his Mother's problem by running a separate properly rated 12 gauge cord for the heater leaving the trailers 30 amp system for the Hot Water/Hair Dryer etc.
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