Maytag mdb3700awx trips breaker immediately when turned on. When I reset the breaker, I get a flash and "pop" at the breaker panel and it re-trips. 30 amp breaker, looks like washer pulls 15 from specs. Bad breaker? Bad breaker to machine wiring?

Hi,
You will want to make sure that all of your spa equipment is functioning properly. It is best for a spa technician or electrician to determine this issue.
It is likely that a particular piece of equipment is turning on around the 30 min time frame and causing the breaker to trip. Pump, ozonator or similar. Also check the heater element, a pin sized hole in the element will cause it to fail. Lastly your spas breaker itself could be bad.
Good luck!

Since you have a gas kitchen range, finding the problem should not be that difficult.

1. Make sure all switches are in the off position. Then reset the circuit breaker. If it didn't trip, then turn one knob on at a time (and then off) until it trips.

2. If the circuit breaker triped with all knobs off, then it would have to be something that is always on like the 12V transformer.

Hopefully, this wiring diagram will be of help.

http://www.searspartsdirect.com/partsdirect/part-model/Maytag-Parts/Range-Parts/Model-MGR6772BDS/3048/0124002/M0604023/00009

I don't have specific suggestion for tankless tripping breaker or if that is a circuit breaker problem or a tankless problem.

1) Move wires to another same-size breaker and see if problem persists.

2) Compare amp draw on tankless label with wire size and breaker size amp rating.
For example 30 amp breaker using 10ga wire is rated for 80% of listed amps or 24 amps.

3) If you are drawing full 30 amps, then 30 amp breaker is getting hot. Breaker trips with heat. Older breakers can trip more easily.
http://waterheatertimer.org/How-to-replace-circuit-breaker.html

4) Before calling service technician, open following link for Bosch troubleshooting steps.
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

5) Be sure to read manual for yearly maintenance requirements.

6) Add a tempering tank for incoming cold water problem.
http://waterheatertimer.org/Tempering-tank.html

7) All gas tankless brands can be repaired by homeowner for $330.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

First HACR is heating, air conditioning,refrigeration. So in other words you could use it on an electric furnace or air conditioning.
IS this the main breaker for the panel? or for and electric furnace. I'm assuming its for the furnace, perhaps back up heat for heat pump. See if there is another disconenct on the furnace, turn it off and see if the breaker resets. IF so you have a short or overload in the furnace.
If' it IS the main for the panel, turn off all the other breakers in the panel, and try to reset the breaker. If that works, turn the other breakers back on one at a time. IF it "POPS" then it is tripping. Don't keep resetting, find the problem.

One of the heat elements is touching ground. Not worth repairing as you have to replace at least 2, maybe all elements

Turn handle to off position and then back on. Same as any other breaker. The red test button can be pressed which will trip breaker. If it trips immediately,unplug all devices on circuit and try to reset. Reconnect each device and see which trips breaker. If this goes to outdoor receptacle, check behind cover for moisture.

Hello, In order to reset circuit breakers that have tripped under load, you must first flip the breaker all the way OFF, before you can then turn the breaker back ON. This should reset the breaker to turn the power back on to the circuit supplied by this breaker.

The red indicator is just there to make it easier to find the tripped breaker. Typically, the red indicator flag is a special feature of Square D QD breakers and panels.

If the breaker immediately trips again and doesn't stay on, then the device it is providing power to, still has a fault and it needs to be looked at to determine what is causing the fault and the tripping of the breaker.

Be sure to turn the breaker OFF if you are going to check the device for potential problems.

I hope you find this Very Helpful and best regards!

don't do that again. if it's spiting sparks it's a safety capture situation. call Maytag.

You may have a wire burn off the element and fall down to the base frame and cause a direct short. Turn you breaker off, remove the front and inspect for such a scenario.