breaker trips with new convection oven & AC

[silver 67]

I just added a convection oven in our 1967 30 foot Airstream and when the convection oven is running and the air conditioner comes on the system trips a breaker. Is there a fix for this?

Thanks for your time,

silver 67

[Phoenix]

Sounds like you have exceeded the 20 or 30 amp rating for your Airstream. You may be able to turn the air conditioner to FAN while using the oven. Otherwise, you'll have to pick one or the other; and not use both at the same time.

The alternative involves rewiring your trailer; not something I would do, personally. However, others may have alternate suggestions or work-arounds.

[Wayward]

If both the appliances are on the same circuit, tripping one of your branch circuit breakers, the Intellitec Automatic Energy Select Switch will shed one load based on the priority you set. So the AC will shut off when you turn on the microwave, then come back on when the microwave shuts off.

If the oven and the AC are on separate branch circuits and you have exceeded 30amps with the Oven & AC on, and are tripping the main breaker, you might want a more sophisticated approach:
Intellitec Smart EMS
PanelTronics Load Shedding System

[silver 67]

Thanks Phoenix and Wayward for your answers. I just checked and the convection oven is on one circuit and the AC is on another circuit. The main circuit is 30 amp and the AC is new and drawing 15 amps all by itself. I'll check the paper work and see if the AC should be drawing 15 amps. Otherwise we will just turn off the ac when cooking.

Silver 67

[Phoenix]

If your convection oven plugs into an AC outlet, you may be able to use a device called a Kill-A-Watt Meter to see how many amps it draws; although, this information is probably in the literature that came with the unit or on the UL label:

Kill A Watt - Wikipedia, the free encyclopedia

There are several models available from Home Depot, Lowes, Amazon.com, and numerous other sources (Costco used to carry these, too); and they are handy around the house or to check appliances you plan to use while camping.

[HowieE]

If they are on separate circuits and you are blowing a breaker I would assume the combination is drawing the voltage down below what the breaker will take and tripping the breaker. The easiest thing to do is put a volt meter across your shore line and watch the voltage as the over comes on.
You may have a soft breaker also. They do age. Try swapping the AC and oven breakers and see what happens. If a 20 amp the breaker blows under the load of the AC it needs to be replaced.