NOOTO WV7901 Dishwasher Water Inlet Valve Instruction Manual

Introduction

This instruction manual provides essential information for the installation, operation, maintenance, and troubleshooting of the NOOTO WV7901 Dishwasher Water Inlet Valve. This part is a direct replacement for original equipment manufacturer (OEM) part numbers 807047901, AP5948913, and PS9865067, compatible with various Electrolux and Frigidaire manufactured dishwasher models. Please read this manual thoroughly before attempting any installation or repair.

Safety Information

WARNING: Before beginning any repair or installation, ensure the dishwasher's power supply is disconnected at the circuit breaker and the water supply is turned off. Failure to do so can result in electric shock, water damage, or personal injury.

Always wear appropriate personal protective equipment, such as gloves and safety glasses.
If you are unsure about any step, consult a qualified appliance repair technician.
Keep children and pets away from the work area.
Ensure all connections are secure and leak-free before restoring power and water.

Setup and Installation

This section outlines the general steps for replacing a dishwasher water inlet valve. Specific procedures may vary slightly depending on your dishwasher model. Refer to your dishwasher's service manual for detailed instructions.

Tools Required:

Screwdrivers (Phillips and flathead)
Pliers
Adjustable wrench
Bucket and towels for water spills

Installation Steps:

Disconnect Power and Water: Turn off the electrical power to the dishwasher at the circuit breaker. Close the water supply valve to the dishwasher, typically located under the sink.
Access the Valve: Depending on your dishwasher model, you may need to pull the dishwasher out from its cabinet or remove the lower access panel to locate the water inlet valve.
Drain Residual Water: Place a shallow pan or towels under the valve area to catch any residual water when disconnecting hoses.
Disconnect Hoses and Wiring:
- Disconnect the water supply line (garden hose connection) from the old valve.
- Disconnect the internal water line (push-on connection) leading to the dishwasher's spray arms.
- Carefully disconnect the electrical wiring harness from the solenoid terminals. Note the orientation if necessary.
Remove Old Valve: Unscrew or unclip the old water inlet valve from its mounting bracket.
Install New Valve:
Image 1: Front view of the NOOTO WV7901 Dishwasher Water Inlet Valve, showing the garden hose inlet connection on the left and the push-on outlet connection on the right.
- Mount the new NOOTO WV7901 valve onto the dishwasher's frame using the existing screws or clips.
- Reconnect the electrical wiring harness to the solenoid terminals.
- Reconnect the internal water line to the push-on outlet connection. Ensure it is secure.
- Reconnect the main water supply line (garden hose connection) to the inlet. Hand-tighten, then use a wrench for a snug fit, but do not overtighten.
Image 2: Rear view of the NOOTO WV7901 Dishwasher Water Inlet Valve, illustrating the metal mounting bracket and the solenoid coil.

Image 3: Close-up of the electrical terminals on the NOOTO WV7901 Dishwasher Water Inlet Valve, showing the 120V, 60Hz rating.
Test for Leaks: Slowly turn on the water supply valve. Check all connections for leaks. Tighten any leaking connections as needed.
Restore Power and Test: Restore electrical power to the dishwasher. Run a short cycle to ensure the valve is functioning correctly and there are no leaks.
Reassemble: Reinstall any access panels or push the dishwasher back into its cabinet.

Operating Principle

The NOOTO WV7901 Water Inlet Valve is an electrically controlled device that regulates the flow of water into your dishwasher. When the dishwasher's control board signals for water, the solenoid coil within the valve is energized (120 Volts, 60 Hertz). This opens a diaphragm, allowing water from your home's supply to enter the dishwasher tub. Once the required water level is reached, the control board de-energizes the solenoid, closing the valve and stopping the water flow. This precise control ensures efficient and proper dishwasher operation.

Maintenance

The NOOTO WV7901 Water Inlet Valve is designed for reliable, long-term operation with minimal maintenance. However, periodic checks can help ensure its longevity:

Inspect for Leaks: Periodically check the connections around the valve for any signs of water leaks. Address any leaks immediately to prevent water damage.
Check Inlet Screen: Some water supply lines have a small screen filter at the connection point to the valve. If your dishwasher is filling slowly, you may need to disconnect the water supply line (after turning off water and power) and clean this screen of any sediment or debris.

Troubleshooting

If your dishwasher is experiencing water-related issues, the water inlet valve may be a contributing factor. Here are some common symptoms and potential solutions:

Symptom	Possible Cause	Solution
Dishwasher not filling with water	Water supply turned off Kinked water supply line Clogged inlet screen Faulty water inlet valve solenoid	Ensure water supply is on. Straighten water supply line. Clean inlet screen (see Maintenance). Test valve solenoid for continuity; replace valve if faulty.
Dishwasher filling slowly	Low water pressure Partially clogged inlet screen Partially restricted water inlet valve	Check household water pressure. Clean inlet screen (see Maintenance). Replace valve if internal restriction is suspected.
Dishwasher continuously fills or overflows	Stuck open water inlet valve Float switch malfunction (less common for valve)	Replace the water inlet valve. Inspect float switch for proper operation.
Water leaks from valve area	Loose connections Cracked valve housing Damaged seals/gaskets	Tighten connections. Replace valve if housing is cracked or seals are damaged.

If troubleshooting steps do not resolve the issue, it is recommended to contact a qualified appliance repair technician.

Specifications

Feature	Detail
Part Number	WV7901
Brand	NOOTO
Voltage Rating	120 Volts
Frequency	60 Hertz
Inlet Connection	Garden Hose Type
Outlet Connection	Push-On Type
Replaces Part Numbers	807047901, AP5948913, PS9865067
Compatibility	Specific Electrolux and Frigidaire manufactured dishwasher models. Also compatible with some Kenmore / Sears models.

Warranty Information

Specific warranty terms for the NOOTO WV7901 Dishwasher Water Inlet Valve are provided by the seller or manufacturer at the time of purchase. Please retain your proof of purchase and contact the retailer or NOOTO directly for warranty claims or detailed information regarding coverage and duration.

Customer Support

For technical assistance, installation questions, or further support regarding the NOOTO WV7901 Dishwasher Water Inlet Valve, please contact the retailer from whom you purchased the product. You may also visit the official NOOTO website for additional resources or contact information, if available.

NOOTO WV7901