Cove Dishwasher Error Code 050117

Error code 050117 indicates an under voltage condition on the Vbus within the wash pump drive system. The DC bus voltage inside the Motor Control Module has dropped below the level needed to properly power and control the wash pump motor. This fault is generated by the MCM to prevent damage from running the motor under insufficient voltage conditions. The primary corrective action is replacement of the MCM assembly.

A power reset may temporarily clear the fault display, but the underlying cause will cause the error to return as soon as the dishwasher attempts to run the wash pump again. If the MCM assembly has an internal failure or the input voltage problem has not been corrected, the fault will persist. A reset alone is not a fix for this error code.

Repair costs depend on whether the issue is the MCM assembly, wiring, or input power supply. If the MCM assembly requires replacement, parts and labor costs can vary widely, generally ranging from a few hundred dollars to over five hundred dollars depending on parts pricing and local labor rates. A qualified technician should diagnose the root cause before parts are ordered to avoid unnecessary expenses.

Resolving this error requires replacing the Motor Control Module assembly, which involves working with components that handle high-voltage AC and DC power. While a knowledgeable technician can perform this repair, it is not recommended as a DIY task for most homeowners due to the electrical safety risks involved. Confirming stable incoming AC voltage at the dishwasher connection is a safe preliminary check anyone can perform.

The dishwasher will typically not complete a wash cycle while this fault is active because the wash pump cannot be properly driven. Attempting repeated cycles will not resolve the issue and may place additional stress on the MCM. It is best to stop using the appliance and arrange for service until the fault is diagnosed and corrected.