Arrived at location on 7/8/22 - Filled machine, stopped filling started machine short cycle ran about a minute then stopped. Error code E-03 came up losing water during wash cycle checked drain valve tighten packing and handle were loose, will order parts and return valve is working for now. Returned to location on 7/19/22 - Checked out the old drain. Found you would have to cut the old PVC out and drop the wash heater to replace the drain valve. Separated the old drain valve and removed the gate. Tried to separate the new one but could not. Went back to the shop and separated the new valve. Came back and replaced the gate portion or all the moving parts for the drain valve. Turned the unit on and tested. The drain valve was not leaking anywhere. Ran a short cycle. Found the unit went off on low water error again. Found the water was only filling to the low water probe and when the pumps would come on the water level would come off the probe and the unit would lock out on e