GE Dishwasher Error Code C1

The C1 error code on a GE dishwasher indicates that the pump-out portion of the drain cycle has exceeded 95 seconds without completing successfully. The dishwasher's control board monitors drain cycle timing, and when the pump runs longer than this threshold, the C1 code is triggered. Importantly, the dishwasher does not halt the cycle when this code appears; it logs the fault and continues operating, which means you may not notice the issue immediately. The problem points specifically to a restriction somewhere in the drain path that is slowing the removal of water.

The drain system on a GE dishwasher includes the drain pump, the drain hose, the air gap (if installed at the sink), and the connection point at the garbage disposer or sink drain tailpiece. A partial blockage at any of these points increases the backpressure the pump must work against, slowing the drain rate enough to exceed the 95-second limit. This is distinct from a complete drain failure, where water would stand in the tub at the end of the cycle. A C1 code typically means water is draining, just more slowly than the control expects.

Common restriction points include a clogged or blocked drain air gap on the countertop, a kinked drain hose behind or beneath the dishwasher, and a disposer knockout plug that was never removed during installation. Food debris accumulation inside the disposer or at the drain hose connection can also create the partial restriction this code describes. Clearing the restriction usually resolves the code without any parts replacement.