Model Number: All models
Brand: Bosch
Age: Less than 1 year

Many of you may have come to this site to find out why your Bosch dishwasher will not complete it's cycle and finish. Additional symptoms are the dishes are warm, but not hot, and if there is a countdown display on your DW, it will never count to 0 and end the cycle.

Most normally, this is due to a burned area of the printed circuit board inside of the controller. This is a well documented failure, even to the point that Bosch has a tech bulletin out that explains that a repair for this is to "refloat" the damaged area with solder.

However, this is only a temporary repair at best. The cause of the burned point on the board is due to an undersized relay. From the time the dishwasher is first used, the undersized relay contacts begin degrading and carburizing. With each wash cycle, more carburzing causes increased resistance of the contacts, which result in heat. The heat is conducted down the metal reeds inside the relay, which get hot enough to melt the solder. As the solder begins to melt away, the connection between the connector pin on the relay and the printed circuit board begins to intermittently fail, to a point that it will arc and burn at the failed point on the circuit board.

The ONLY correct solution is replacement of the relay with one rated for the duty. This is true when repairing the board, or when choosing to purchase a new board (of all the boards I have repaired, I have not seen any where Bosch has upgraded their design).

I maintain a stock of the various relays used by Bosch on this board, with quick turnaround of just a relay, or a repaired board (I even buyback any boards you may have). These timer boards are also used on a number of different manufactures dishwashers, so if your timers looks anything like the Bosch units, the repairs are the same.

Contact me for more information at boschrepair "at" tx.rr.com .