Microwave and AC Trip Breaker - Dealer Says Normal?

[TURBS]

Originally Posted by DoctorT68

Learned so much from reading all your posts. Thank you so much everyone. Yes I was also running my water heater on electric....Doh!!!

And there ya have it!
Happy camping!

TURBS
08 duramax tuned n modded
2011 32bhok Sabre
2015 camping "15 nights"

[olbob52]

I think with the new TT we'll be running the Fridge and HW heater on LP this time. It will be around 100 degrees this weekend and I want the Ac to be working with no problems. Thanks everybody.

[Big Bill]

if you have low volt age to 30 amp servive you wil trip breakers

[olbob52]

Right !!

[dave961]

The Microwave in my XLR uses 21 amps, and when the AC is hammering it uses 18 amps. Too much for my 30 amp unit. I'm guessing there are better microwaves than what the factor puts in, and you can probably find one that is not such a hog.

[olbob52]

You got me to thinking that I need to check our microwave. It's never been used yet, but I think I'll go check it out. Thanks for that info.

[olbob52]

Dave, I just checked the microwave. If I'm figuring right, it pulls almost 11 1/2 amps. The amp guide that came with all the TT paperwork suggests 12.8. I see why now FR suggests using the wh and fridge on gas to save the electrical consumption. Thanks for the heads up, Dave.

[Harkerr]

Depends on the breaker. Should not trip. 30 amp main.

May trip a 20 branch circuit if both on but both should not be on one circuit to begin with.

[Boso]

Can run ac and microwave same time or ac electric water heater any two but not any three 2015 3050s 30 amp as a matter of fact running water heater and ac right now 15000 ac


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[davel1971]

a 15,000 BTU ac draws 18-20 amps alone. Add the micro and you are right at 30 amps with nothing but those 2.

[Boso]

Just saying what mine does never had problem with breaker unless running the three never with two but air is not starting up already running





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[RubberNail]

Modern 15K (Dometic Brisk 2) A/C pulls max of 13.5 amps. NEVER in my 45 years of RVing have I seen a rooftop 13.5 or 15 A/C that drew 18+, but could have missed something. I too have a 30A Sunseeker (2300) and also a 50A 5th wheel (Montana). Sunseeker usually has no problem with converter, A/C and Microwave, but all else needs to be off the electricity. H/W heater is sneaky as on my Sunseeker, E switch is only accessible from the outside cover, which I leave on and kill it by throwing the inside breaker. IT DOES NOT TURN OFF THE ELECTRICITY WHEN YOU SWITCH ON THE PROPANE. Has not yet happened with the this Sunseeker, but on prior 30A units I have thrown breakers with just A/C and Microwave and a poorly charged house battery - which I attribute to the converter working hard to recharge. You've gotten a lot of information, but not all of it is good.

[TURBS]

Originally Posted by RubberNail

Modern 15K (Dometic Brisk 2) A/C pulls max of 13.5 amps. NEVER in my 45 years of RVing have I seen a rooftop 13.5 or 15 A/C that drew 18+, but could have missed something. I too have a 30A Sunseeker (2300) and also a 50A 5th wheel (Montana). Sunseeker usually has no problem with converter, A/C and Microwave, but all else needs to be off the electricity. H/W heater is sneaky as on my Sunseeker, E switch is only accessible from the outside cover, which I leave on and kill it by throwing the inside breaker. IT DOES NOT TURN OFF THE ELECTRICITY WHEN YOU SWITCH ON THE PROPANE. Has not yet happened with the this Sunseeker, but on prior 30A units I have thrown breakers with just A/C and Microwave and a poorly charged house battery - which I attribute to the converter working hard to recharge. You've gotten a lot of information, but not all of it is good.

Modern 15k and 13.5k units will pull upwards of 18 amps upon start up, then settle in around 12 - 14 amps after running.
Coleman Mach a/c units will pull upwards of 30 amps to start!

TURBS
08 duramax tuned n modded
2011 32bhok Sabre
2015 camping "15 nights"

[kswing60]

I have a 3010 with a 15000 BTU air conditioner. It does cause the shore power circuit breaker when you run the AC, microwave and have the electric hot water heater on. If the hot water heater and ac are on and you start the microwave the breaker trips. As stated above you have to manage your loads. Try switching the hot water heater to gas.

[RubberNail]

As said, could have missed something. During past 2 years has been my misfortune to replace two 13.5 and one 15 unit with new Brisk 2 A/Cs which I purchased from discount suppliers. Looked at specs both times, and observed new 15k unit actually drew less current than older 13.5. Also note that new units start up fan first, and then bring on the compressor which drops the startup current draw. Of course, if you only have 105v or so, as I have encountered in some Canadian parks, amp draw will be more. I bet those Coleman Mach 30 amp loads play hell with the 20 amp breakers!

If anyone has any doubt about the A/C load rating, installation manuals are available on line with the rate load amperage show by model.

Much was also said about surge protectors, to which I add a yes. Have fried two washing machine/dry combos, one entertainment unit and one frig. All those occurred on 50A service, once at a park pedestal, and once on a downed home service line (short to neutral). Nothing else since in last 6 years post surge protectors.

I'm disconnecting from this thread, so no need to reply. Looks to me like several folks have already identified the problem and solution.

[elind]

I guess answer to this problem is to order your RV with a 50 amp service. Then you can have two A/Cs, microwave, and the coffee maker all at once.

[Tom48]

If you run frig on ac that's 4 amps min. Right there. If the wh cycles on ac that's too much already for a/ C and most microwaves. Our micro is 1000 watt with some sort of soft start and it is very gentle on start up load so I can get by w a/c and micro but my converter is in plugged in favor of solar so that saves big. Wish I had elec on the wh but I don't so no problem there

[davel1971]

specs for Dometic Brisk II which I have shows compressor amp draw, so fans are not included in the listed spec. I just replaced my unit and it draws about 18 with fan on high. The old unit was the same.

[chicagoslick]

Usually if the breaker trips its due to running any combination of 3 (ac / water heater / hair dryer / curling iron / microwave / Kuerig Coffee Maker). That has been our experience with our 27RLWS. Also of note is the drop of voltage at most campgrounds once a lot of power is being drawn. It is common to see drops below 105 volts, which everyone knows by now means higher current. One of the main reasons to have a good surge protector. I installed the progressive unit with remote display and I never guess about the electric....

Gary

[JimOneil43]

Originally Posted by ATVer

You should be able to use both together no problem but nothing much else. If the water heater kicks on electric or other large load like a coffee maker or maybe even the refrigerator if you have the large 4 door option it will likely trip. Also if you have the optional larger 15K A/C you may have more issues. Some people have converted over to 50 amp service to resolve the issues.

What is involved in converting a 30Amp system to 50Amp? And what is the cost?
Thanks