GE Profile UltraFast Combo: Troubleshooting "Add Water"... | appliancefaults.com

Technical Background:

The Main Control Unit (MCU) monitors the water level using a pressure sensor and/or a flow meter. It controls the water inlet valves to fill the tub to the appropriate level. If the MCU doesn't detect the correct water level within a specified timeframe, it will display the "Add Water" error. Voltage paths from the pressure sensor, flow meter, and water inlet valves feed back to the MCU.

Symptoms:

The GE Profile UltraFast Combo displays an "Add Water" error message, and the unit will not start or continue its cycle, even though the water supply hoses are properly connected and the water is turned on.

Possible Causes:

Faulty water inlet valve.
Blocked water inlet screens.
Defective pressure sensor.
Malfunctioning flow meter.
Problem with the Main Control Unit (MCU).
Kinked or damaged water supply hose.

Solution:

1

Disconnect the unit from the 120V AC power source at the breaker panel.
2

Check the water supply hoses. Ensure they are not kinked and are securely connected. Water pressure should be at least 20 PSI.
3

Inspect and clean the water inlet valve screens. Use a 5/16-inch nut driver to access the valves.
4

Test the water inlet valve solenoids for proper operation using a multimeter. Resistance should be within the range specified in the service manual (typically 1.3k ohms). Replace if faulty.
5

Disconnect the pressure sensor and check the hose for blockages. Use a multimeter to test the sensor's output voltage. Compare the readings to the service manual specifications.
6

Inspect the flow meter. Use a multimeter to check the continuity of the flow meter switch.
7

If all components check out, the MCU may be defective. Contact a qualified technician for replacement and programming.

Safety Warning:

Always disconnect the appliance from the power source before performing any repairs. Lock Out/Tag Out (LOTO) procedures must be followed. High voltage components are present inside the appliance. If you are not comfortable working with electricity, contact a qualified appliance repair technician.

Prevention:

Regularly inspect and clean the water inlet valve screens to prevent clogs. Check water hoses for kinks or damage at least every 6 months. Use a water softener if you have hard water to prevent mineral buildup.

Expert Tip:

Some GE washers have a service mode. To enter service mode, press and hold the Start/Pause button while pressing and releasing the Temp button three times. This allows you to run diagnostic tests and calibrate sensors.

Frequently Asked Questions

•Where is the pressure sensor located on this model?

The pressure sensor is typically located near the bottom of the tub, connected to a small hose that senses the water level.

•What is the proper voltage range for the pressure sensor?

Refer to the service manual for the specific voltage range for the pressure sensor at different water levels. Generally, it will vary between 0.5V and 4.5V DC.

•How do I test the flow meter for proper operation?

Disconnect the flow meter and use a multimeter to check for continuity. As water flows through the meter, the switch should open and close. If the switch is always open or always closed, the flow meter is likely faulty.

GE Profile UltraFast Combo: Troubleshooting "Add Water" Error When Hoses Are Connected

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•Where is the pressure sensor located on this model?

•What is the proper voltage range for the pressure sensor?

•How do I test the flow meter for proper operation?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: