GE Profile Dishwasher Error Code F97: Heating Element vs... | appliancefaults.com

Technical Background:

The main control unit (MCU) monitors the heating element circuit through a temperature thermistor and a relay. The F97 error typically indicates that the control board is detecting an open or shorted heating element circuit, or that the water temperature is not reaching the expected level within a specified time frame. The voltage path goes from the breaker panel to the control board, then through a relay to the heating element, and returns to neutral.

Symptoms:

The homeowner reports that the dishwasher is not heating the water properly. Dishes are not drying completely, and food residue remains after the wash cycle. The F97 error code is displayed on the control panel.

Possible Causes:

Failed heating element
Faulty control board
Wiring harness issue between the element and the board
Thermistor malfunction affecting temperature sensing
Loose connection at the heating element or control board
Excessive scaling or buildup on the heating element

Solution:

1

Disconnect power to the dishwasher at the breaker panel. Verify no voltage present using a multimeter.
2

Locate the heating element, usually at the bottom of the dishwasher tub. Inspect for physical damage or excessive scaling.
3

Disconnect the wiring harness from the heating element. Use a multimeter to test the element's resistance. A typical reading should be between 15-25 ohms. An open circuit indicates a failed element.
4

Check the wiring harness for continuity. Repair or replace any damaged wires.
5

Access the control board. Locate the relay that controls the heating element. Inspect for burned components or loose connections.
6

With power disconnected, carefully unplug and re-plug the connectors on the control board to ensure good contact. Visually check for corrosion.
7

If the heating element tests good and the wiring is intact, the control board is likely the cause. Replacement of the control board may be necessary.

Safety Warning:

Always disconnect power to the dishwasher at the breaker panel before performing any repairs. Use proper Lock-Out/Tag-Out (LOTO) procedures to prevent accidental re-energization. High voltage is present when the dishwasher is operating.

Prevention:

Run a dishwasher cleaner cycle monthly with a product designed to remove scale and buildup. Check the spray arms for clogs regularly. Avoid overloading the dishwasher to ensure proper water circulation.

Expert Tip:

Some GE dishwashers have a service mode that can be accessed by pressing a specific sequence of buttons. Consult the service manual for the correct sequence for your model. This mode allows you to run diagnostic tests, including testing the heating element circuit independently.

Frequently Asked Questions

•What is the specific resistance range I should expect for the heating element on my GE Profile dishwasher model?

Refer to the service manual for your exact model. However, most GE dishwashers are between 15 and 25 ohms. If the reading is significantly different (open circuit or very low resistance), the element is likely faulty.

•How do I access the service mode on my GE Profile dishwasher to run diagnostic tests?

The service mode access sequence varies by model. A common sequence involves pressing and holding certain buttons (e.g., Start, Select Cycle) for a few seconds. Consult your dishwasher's service manual or search online for the specific sequence for your model.

•Where can I find a replacement heating element and control board for my GE Profile dishwasher?

You can purchase replacement parts from appliance parts retailers online, authorized GE appliance dealers, or through the GE Appliance Parts website. Make sure to have your model number handy to ensure you order the correct parts.

GE Profile Dishwasher Error Code F97: Heating Element vs Control Board Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the specific resistance range I should expect for the heating element on my GE Profile dishwasher model?

•How do I access the service mode on my GE Profile dishwasher to run diagnostic tests?

•Where can I find a replacement heating element and control board for my GE Profile dishwasher?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: