GE Washer Error Code CB

The CB code on a GE washer indicates a DC bus voltage fault in the motor drive circuit. It covers two related conditions: a brownout where the DC bus voltage is too low, and an overvoltage condition where the DC bus voltage is too high. Both prevent the motor from operating safely. The first step is always to verify that the AC line voltage at the outlet is correct.

You should not continue running the washer while the CB code is active. The fault indicates that the internal power supply is operating outside safe limits, which can cause further damage to the drive electronics or motor if ignored. Address the voltage issue before resuming use.

If the fix is simply correcting a wiring issue or a circuit problem, costs can be minimal, covering only a service call in the range of 75 to 150 dollars. If a motor control board or main control board needs replacement, parts and labor typically range from 200 to 450 dollars depending on the specific board and your location. Getting a diagnostic visit first helps confirm which component is actually at fault before committing to parts costs.

Some causes of the CB error are DIY-friendly. Start by checking your outlet voltage with a multimeter and making sure the washer is on a dedicated circuit without other high-draw appliances sharing it. Inspect visible wiring connections for looseness or corrosion. If those checks do not resolve the fault, the control board likely needs professional evaluation or replacement.

A reset may temporarily clear the CB code, but it will return if the underlying voltage problem is not corrected. If the AC line voltage is consistently out of range or a component in the power circuit is failing, the fault will reappear as soon as the washer attempts to run the motor again. A reset is useful for confirming whether the fault is intermittent, but it is not a repair.