a customer brought in a samsung m/o mod.mr1034uwd ser.7mbxc00269w. after being plugged in for a few seconds it would go to an e-5 code and wouldn't take any commands. i unplugged the key pad and reconnected the oven to power, every thing o k, reconnected the key pad and everything is working as it should. i can't locate the fault codes on the internet. can anyone help? i am afraid it is not fixed even though it is working at this time.