Thor Kitchen Dishwasher Error Code E8

E8 indicates a distributary valve orientation failure caused by an open circuit or a break in the valve. The distributary valve directs water flow to different wash zones during the cycle, and the control board has detected that it cannot confirm proper valve positioning or electrical continuity. The dishwasher will stop operating until the fault is resolved.

No, you should not continue running the dishwasher while E8 is active. The distributary valve controls water routing, and running a cycle without it functioning correctly could result in inadequate washing or potential water flow issues. Power the unit off and address the fault before resuming use.

Repair costs depend on the specific cause. If the fix involves reseating a connector or repairing a wire, costs may be minimal, primarily covering labor if a technician is involved. Replacing the distributary valve itself typically ranges from $80 to $200 for the part alone, with additional labor costs of $100 to $250 depending on your location and service provider. Control board replacement, if needed, can push the total cost higher.

Some causes of E8 are accessible to a knowledgeable DIYer, such as reseating a loose connector or inspecting wiring for visible damage. However, testing the solenoid with a multimeter and replacing the distributary valve require basic electrical knowledge and comfort working inside the dishwasher. If you are not familiar with appliance wiring, a qualified technician should perform the diagnosis and repair.

A reset may temporarily clear the error code from the display, but the code will return as soon as the dishwasher attempts to operate the distributary valve again if the underlying fault has not been repaired. Resetting is useful for confirming the error is consistent, but it is not a substitute for diagnosing and fixing the open circuit or broken valve.