For it to be a sub-panel, it'd need 4 wires running to it: Hot, Hot, Neutral, Ground
I couple weeks ago, I had an electrician come in and remove two wires
from two circuit breakers from the main panel. I reconnected the wires to the two circuit breakers on the
Why is the sub-panel fed from two different breakers? You need a double pole breaker or the breakers need to be barred together so that if one trips, they will both trip. Secondly, why did you have an electrician remove the wires, but then reconnect them yourself? You should have called him back in to ensure things were done correctly based on the work that he had done.
I find it
unlikely that the old dishwasher stops working at this time AND the
new dishwasher doesn't power on, so I'm assuming it's a problem with
It's very unlikely. For future reasoning; check the electricity first before buying a new appliance.
I have a voltage tester, and it indicated that there was power going
to the dishwasher. Would a dishwasher not turn on if there weren't
enough amps? I plan on borrowing a multimeter from a friend today to
check the amps going to the dishwasher. If there's not enough amps,
would I have to run a new line to the dishwasher?
Your power supply does not give amps to anything. Amps are pulled by a device, not pushed by the service. If the device is not working, then there are no amps being pulled by it. The electricity supplied to your house is like your water supply. Electrical pressure (voltage) is in the line waiting for a load to be added. Like how you have constant water pressure waiting within the pipes in your house. When a device is connected and turned on, it's like turning on a water faucet and filling a bucket. The amount of electricity being used, i.e. the amount of water filling the bucket, is the amps.
I just tested the voltage and it came up with 8 - 11 volts. I checked
the outlet next to me (on another circuit) to verify it was working
correctly, and it showed 110.
Do I have to rewire?
No, not entirely. Just consider here that nothing has been changed between the sub-panel and the dishwasher and we'll assume that one of your two dishwashers are good. Since the rest of your house is fine, and half of the sub-panel, this means that the error is within the feed to the sub-panel or within the sub-panel itself.
My guess is that one of the two hot wires feeding the sub-panel are not connected correctly or you could even have a bad breaker feeding it. You should definitely have a double pole breaker supplying it or at least a bar between the two separate breakers so that they'll trip together. Next, it's best not to touch another person's work until they are done. I don't know why you had an electrician come in to play with the sub-panel, but he might not have had all of the wires connected correctly in both panels.
The two hots should be fed from the breaker (or barred breakers) and connected to the bus bars of the sub-panel.
The neutral should be tied into the neutral bar in the main and in the sub.
The ground should be tied into the ground bar in the main and in the sub.