I would be pretty wary of using it with that amount of voltage. If the electricity routes through you, it would probably give you more than a good buzz.
Based on the fact that it made your fingers tingle before you replaced the motor, I doubt the new motor or your installation of it is the cause of this issue. You probably have some kind of short inside the machine itself. Best bet is to crack open the machine (when unplugged, obvs). This could be the most dangerous part - make sure you can identify capacitors on the circuit board and find a youtube video about safely discharging them, as capacitors can store dangerous amounts of electrical charge even when the circuit is unplugged, and discharging them accidentally can fuck you up. Then look for obvious loose connections. If you don’t see that, you will have to start searching for the short. Set your DMM to measure resistance. Search the motor component with one lead and the rest of the machine’s circuit with the other. As long as resistance is a real number, you have a closed circuit and the short is on the circuit the leads are on. When resistance jumps to infinity, you are no longer in a connected circuit, and the short is somewhere else. Often, shorts will read as significant amounts of resistance, as the marginal connection between two components is not enough to allow free-flowing current. Note that this creates a new danger - even if you don’t electrocute yourself with the machine during use, it is possible it will catch on fire as electricity running through a marginal short heats up the components. If you are lucky, you can identify the short by noting the leads have non-zero resistance in one spot, but 0 reistance upstream and downstream of that spot. Then you might look real close and see a loose wire or a burn mark. But maybe this is just an expected bit of resistance that was designed into the circuit. It’s a bit of an art, takes some patience, and if the solution isn’t immediately obvious, there is about a 70% chance you are wasting your time.
Ideally, as the other user said, you would also install a ground during your troubleshooting so you don’t electrocute yourself in the future if it happens again.
I would be pretty wary of using it with that amount of voltage. If the electricity routes through you, it would probably give you more than a good buzz.
Based on the fact that it made your fingers tingle before you replaced the motor, I doubt the new motor or your installation of it is the cause of this issue. You probably have some kind of short inside the machine itself. Best bet is to crack open the machine (when unplugged, obvs). This could be the most dangerous part - make sure you can identify capacitors on the circuit board and find a youtube video about safely discharging them, as capacitors can store dangerous amounts of electrical charge even when the circuit is unplugged, and discharging them accidentally can fuck you up. Then look for obvious loose connections. If you don’t see that, you will have to start searching for the short. Set your DMM to measure resistance. Search the motor component with one lead and the rest of the machine’s circuit with the other. As long as resistance is a real number, you have a closed circuit and the short is on the circuit the leads are on. When resistance jumps to infinity, you are no longer in a connected circuit, and the short is somewhere else. Often, shorts will read as significant amounts of resistance, as the marginal connection between two components is not enough to allow free-flowing current. Note that this creates a new danger - even if you don’t electrocute yourself with the machine during use, it is possible it will catch on fire as electricity running through a marginal short heats up the components. If you are lucky, you can identify the short by noting the leads have non-zero resistance in one spot, but 0 reistance upstream and downstream of that spot. Then you might look real close and see a loose wire or a burn mark. But maybe this is just an expected bit of resistance that was designed into the circuit. It’s a bit of an art, takes some patience, and if the solution isn’t immediately obvious, there is about a 70% chance you are wasting your time.
Ideally, as the other user said, you would also install a ground during your troubleshooting so you don’t electrocute yourself in the future if it happens again.