GE Profile GFW850 Washer: Understanding the "1H" Display... | appliancefaults.com

Technical Background:

The 1H error code indicates a problem with the UltraFresh Vent system. The main control unit (MCU) monitors the pressure sensor and vent fan operation during the vent cycle. If the pressure does not change as expected or the fan fails to operate, the MCU generates the 1H error and halts the cycle. Voltage is sent to the vent fan motor from the MCU during the vent cycle.

Symptoms:

The GE Profile GFW850 washer displays a "1H" error code on the control panel. The UltraFresh Vent cycle may not be functioning, leading to potential mold or mildew growth. Clothes may retain a musty odor.

Possible Causes:

Blocked vent hose or vent path
Faulty vent fan motor
Defective pressure sensor
Control board malfunction
Clogged lint filter or drain pump filter

Solution:

1

Disconnect power to the washer at the breaker panel (LOTO).
2

Inspect the vent hose for kinks, obstructions, or damage. Replace if necessary.
3

Check the vent fan for proper operation. Measure voltage at the fan motor connector (approximately 120V AC during vent cycle). Replace fan if no voltage or fan is defective.
4

Inspect the pressure sensor hose for blockages or leaks. Clean or replace as needed.
5

Examine the lint filter and drain pump filter for clogs. Clean thoroughly.
6

If the above steps don't resolve the issue, the main control board may be faulty and require replacement. Consult a qualified technician.
7

Use a multimeter to verify continuity on the vent fan.

Safety Warning:

Disconnect power to the washer at the breaker panel before performing any repairs. Verify the circuit is de-energized with a multimeter. High voltage components are present within the washer. Lock Out/Tag Out (LOTO) procedures must be followed.

Prevention:

Regularly clean the lint filter and drain pump filter. Ensure the vent hose is free from kinks and obstructions. Run the UltraFresh Vent cycle after each wash or as frequently as recommended in the owner's manual.

Expert Tip:

Entering service mode on the GFW850 can provide more detailed diagnostic information. To enter service mode, press and hold the Start/Pause button while simultaneously pressing the Temperature and Spin Speed buttons for approximately 3 seconds. Use the cycle selector knob to navigate through the diagnostic menus.

Frequently Asked Questions

•What is the resistance value I should see when testing the vent fan motor?

A healthy vent fan motor should typically read between 50-150 ohms. An open circuit indicates a faulty motor.

•Where is the pressure sensor located on the GFW850 washer?

The pressure sensor is typically located near the bottom of the washer, often accessible from the rear panel. It is a small, round component with a hose connected to it.

•How do I replace the main control board on the GFW850?

Replacing the main control board requires disconnecting power, removing the top panel, and carefully disconnecting all wire harnesses connected to the old board. Transfer the harnesses to the new board and reassemble. Ensure all connections are secure.

GE Profile GFW850 Washer: Understanding the "1H" Display for UltraFresh Vent Cycle

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the resistance value I should see when testing the vent fan motor?

•Where is the pressure sensor located on the GFW850 washer?

•How do I replace the main control board on the GFW850?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: