Arrived at location on 8/2/21 - replaced door gaskets, removed failed drain valve, found that new drain valve is incorrect size. Reinstalled old valve, called manufacturer, was on hold for 30 minutes, unable to reach support for correct part number. Will get part number and order correct valve and return to install. Returned on 8/9/21 - removed failed solenoid valve, installed new solenoid valve, wired in valve, turned on power at breaker, turned on unit, unit filled, found no leaks. Allowed unit to heat, turned on top and bottom steamers, both produced steam. Shut down unit, verified that unit drained normally, confirmed unit working correctly at this time.