I was running dishwasher inside and a small heater on built in back porch. They both quit working, I have reset all breakers and still either work. What do I check next

Would this dishwasher happen to be a portable dishwasher that is plugged into a outlet?

Yes it is plugged in behind it somewhere

Don't understand, most portable dishwasher plug into an outlet above the counter top. Does the outlet that the dishwasher is plugged into have a reset button? Do other outlets in the kitchen work?

Can't see outlet but probably not the house is old. All other outlets in kitchen work but the outlet on built in back porch to the little heater that caused this doesn't either

Can't see outlet but all other outlets in kitchen work. The outlet on the back porch the little heater that caused all this doesn't

You said you reset all the breakers. Does that mean you turned them off and then back on or does it mean you looked to see if they were tripped off?

I turned them off and back on

I would have to guess then, that if there are no GFI outlets to trip and all circuit breakers have been reset , that you have a wiring problem. That would be something that only a person that is there physically and able to check things can repair.

Guess you will have to call an electrician.

She has run these 2 items together before and all we had to do is flip the breaker. Did that this time but it didn't come back on. Still need to call someone

Unplug heater and reset breaker.