Mark B. for Model Number Bosch SHU 5306UC At first the unit would not drain. I cleaned the sump and blew out the lines, cleaned the vent, and checked the continuity of the water inlet. There was no continunity so I got a new inlet. It still begins the cycle at 13 and counts down to 1 and then keeps running. I checked the control module and found the burnt black spot on the board and resoldered. I started a new cycle and again it begins on 13 and cycles down to one and holds. But now there is steam so I guess the heater works but what is keeping it from completing the cycle? Also the water still remains in the bottom of the unit. Could a bad drain pump be causing the problems of not completing the cycle because it still senses water in the sump?
Answer Hello Mark, The drain pumps on these are notorious for stopping from debris in the sump area. It doesn't take much to damage the drain pumps' windings. If the board had burned contacts on it, I wouldn't trust it. When excessive current burns a connection, remember that everything in that circuit had the same excessive current on it. I would replace the drain pump and the board should be replaced also. Read More... Answered by AppliancePartsPros.com | Tuesday, June 25, 2013