![]() If you don't, you might be able to talk an appliance tech into performing it (but I kinda doubt this.), or maybe you have a friend with these skills.Īfter this procedure and my initial post, my dishwasher continued to work for about 2 weeks. If you have electrical smarts and soldering skills, this is a very simple repair to do yourself. These steps cure that problem by fooling the main board into clearing its settings about the UI board (steps 6 and 7), and then setting them correctly (steps 8-10). Memory corruption is causing the main board and UI board to intentionally refuse to communicate. Steps 6-8 are required if the main board and UI board had already lost communications before you attempted the fix. Power off the dishwasher, and wait at least 10 seconds for main board to completely power off ![]() This means "no communication with UI board" Power up the dishwasher and confirm that the LED on the main board comes on steady. ![]() Re-install the main board and connect most of the connectors including power. Tin the power pigtail wires and solder then in to the correct holes on the main board Make note of the wire order for hot (black), neutral (white), and ground (green) where they connect to the main board.ĭesolder and remove the power connector from the main board.Ĭut the connector off the power pigtail, strip the wires 1/8"-1/4", cut off a few strands until the remaining strands are able to fit into the power connector holes on the main board Remove the main board and the power pigtail. It is very likely to not require replacing either the main board or UI board. It is to completely remove the connector and direct solder the power pigtail to the main board. ![]() The free solution requires soldering skills. Replacing the main board replaces half of the problem connection, but the other half of the connector does not get replaced, so the problem recurs much sooner. Frequent power/reboot cycles lead to corruption of memory on the control board and/or UI board, until finally they stop talking to each other at all. But while the dishwasher is idle and drawing very little power, that input power is extremely dirty. Contact dynamics while the dishwasher is running and drawing lots of power, tend to maintain better contact at that time, allowing the cycle to complete. The input voltage varies so much over time that the main board powers on and off very frequently (hence all the random beeps). Over time, the connector degrades further, until the contacts are able to make/break the connection randomly all the time. This connector cannot handle the amount of power the dishwasher draws. Root cause: faulty power connector at the main board (this is an engineering flaw) Buying parts and doing the board replacement yourself can cost as much as $300, and add another $200 to have a service tech do it.īut you can actually fix the problem for free. You can find many variations on this set of symptoms all over the internet, and mostly folks are replacing the UI board, or the control board, or both, and getting marginal results, with the problems recurring after 6 months or so. Power connector on main board fits very loosely and shows evidence of browning/toasting from heat Main board light would be on solid, indicating lost communications with UI board Main board light would be flashing the CSM (current sense module) error pattern, but diagnostics would not show any current problems Removing power would wake it.ĭishwasher may stop and go dark in the middle of a cycle Wash and clean lights stopped remaining lit at end of cycleĭishwasher would be completely dead pushing buttons and opening/closing door would not wake it. I have identified a problem and the simple solution, and I want to share that here.ĭishwasher randomly makes the normal beep sounds, as though it just got powered on, or a button got pressed, when no-one is even near it Over time the problems worsened, until I would often have to unplug power or turn the breaker off to "reboot" it before each load of dishes, and then finally it seemed to go unrecoverably dead. I have a GE dishwasher GDT695 stainless steel version, and about six months ago it began behaving strangely.
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