GE Dishwasher Error Code C5: Pump Out Time Too Short... | appliancefaults.com

Technical Background:

The C5 error code indicates that the dishwasher's control board (MCU) is not detecting the drain pump operating for a sufficient time. The MCU monitors the drain pump's current draw and flow meter signals. If the drain time is shorter than expected, the error is triggered. The voltage path involves the MCU sending a 120V AC signal to the drain pump relay, and monitoring feedback from the flow meter.

Symptoms:

The GE dishwasher displays a C5 error code and may not drain properly. You might find standing water at the bottom of the dishwasher tub. The wash cycle may be interrupted, or the dishwasher might fail to start.

Possible Causes:

Drain hose obstruction or kink
Faulty drain pump
Clogged filter assembly
Siphon issue in drain hose
Defective flow meter
Control board malfunction

Solution:

1

Disconnect power to the dishwasher at the breaker panel.
2

Inspect the drain hose for kinks or obstructions. Disconnect the hose and flush it out.
3

Check the drain pump filter assembly for debris. Clean thoroughly.
4

Verify the drain pump impeller rotates freely. If not, the pump may be faulty.
5

Use a multimeter to test the drain pump for continuity. A reading of 15-25 ohms is typical.
6

If the pump tests good, inspect the flow meter using a multimeter. Refer to the service manual for expected values.
7

As a last resort, consider replacing the main control board if all other components test okay.

Safety Warning:

Disconnect power to the dishwasher at the breaker panel before performing any repairs. Verify the power is off using a non-contact voltage tester. Dishwashers operate on 120V AC, which can cause serious injury or death. Lock Out / Tag Out (LOTO) procedures should be followed.

Prevention:

Regularly clean the drain pump filter assembly to prevent clogs. Ensure the drain hose is properly installed and free from kinks. Avoid overloading the dishwasher with excessive food debris.

Expert Tip:

Some GE dishwashers have a service mode. Press and hold the 'Start' and 'Select Cycle' buttons simultaneously for 5 seconds to enter the service mode. From there, you can run diagnostic tests on individual components, including the drain pump.

Frequently Asked Questions

•What is the typical resistance reading for a GE dishwasher drain pump?

A typical resistance reading for a GE dishwasher drain pump is between 15 and 25 ohms. Use a multimeter to test the pump's continuity after disconnecting power.

•Where is the drain pump filter assembly located in a GE dishwasher?

The drain pump filter assembly is typically located at the bottom of the dishwasher tub, near the drain opening. You may need to remove the lower spray arm to access it.

•How do I prevent siphoning in the drain hose?

Ensure the drain hose has a high loop, meaning that part of the hose is higher than the connection to the garbage disposal or sink drain. This prevents water from being siphoned back into the dishwasher.

GE Dishwasher Error Code C5: Pump Out Time Too Short Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the typical resistance reading for a GE dishwasher drain pump?

•Where is the drain pump filter assembly located in a GE dishwasher?

•How do I prevent siphoning in the drain hose?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: