LG Dishwasher Inlet Water Valve 5221DD1001E, Replaces 5221DD1001C

5221DD1001E is a genuine LG dishwasher water inlet valve assembly. It replaces discontinued LG part number 5221DD1001C. The 12-volt DC valve connects to the household water supply and controls the water entering the dishwasher tub.

A blocked, leaking or electrically failed valve may contribute to a dishwasher that does not fill, fills slowly, has a low water level, leaks while filling, or allows water into the tub while switched off. Similar symptoms can also result from low household water pressure, a closed supply valve, kinked inlet hose, blocked inlet screen, defective float switch, damaged wiring, door-latch problem or control-board fault.

Is This the Right Part?

Confirm the complete dishwasher model before ordering. Similar-looking LG inlet valves may use different voltages, connectors, mounting arrangements or hose connections.

Common Symptoms

• Dishwasher does not fill with water
• Fills slowly — cycle takes much longer than normal
• Low water level in the tub during wash cycle
• Water leaks into the tub while the dishwasher is switched off
• Water continues entering after the dishwasher is full
• Fill-related error codes (IE, FE) on the control panel

Check Before Replacing

• Confirm household water supply pressure is adequate (40–60 PSI) and the shutoff valve is fully open
• Inspect the inlet hose for kinks and the valve inlet screen for sediment blockage — a clogged screen causes the same slow-fill symptoms as a failed valve
• Test the float switch and overflow sensor — a stuck float prevents filling regardless of valve condition
• Check the wire connector at the valve solenoid for corrosion or loose pins before condemning the valve

Part Details

Installation Notes

1. Disconnect electrical power and shut off the water supply before servicing.
2. Photograph the inlet hose connection, wire harness connectors, and mounting bracket position before removal.
3. Compare the new valve with the original — confirm voltage, connector type, hose fitting, and mounting configuration match.
4. Inspect the inlet screen and nearby hose for sediment or damage during the swap.
5. Reconnect the supply line and restore water pressure — check for leaks before restoring power.
6. Run a full test cycle and confirm fill operation before closing the access panel.

Use a qualified technician when diagnosis or installation is outside your experience. Shut off the water supply before disconnecting any hose connections.

Verified Compatible Models

Two-source verified: LDF7774ST, LDP7808BD, LDPN6761T

Extended fitment list: LDS5040ST, LDS5040WW, LDS5540ST, LDS5540WW, LDS5560ST, LDS5774ST, LDF5545BB, LDF5545BD, LDF5545SS, LDF5545ST, LDF5545WW, LDF5678BD, LDF5678SS, LDF5678ST, LDF7551BB, LDF7551ST, LDF7551WW, LDF7561ST, LDF7774BB, LDF7774BD, LDF7774ST, LDP5676BD, LDP6797BB, LDP6797BD, LDP6797BM, LDP6797SS, LDP6797ST, LDP6797WW, LDP6809BD, LDP6809BM, LDP6809SS, LDP6810BD, LDP6810SS, LDP7708BD, LDP7708ST, LDP7808BD, LDP7808SS, LDPN6761T, LDPS6844AS, LDT5665BB, LDT5665BD, LDT5665ST, LDT5665WW, LDT5678BD, LDT5678SS, LDT5678ST, LDT6809BD, LDT6809SS, LDT7797BM, LDT7797ST, LDT7808BD, LDT7808BM, LDT7808SS, LDT7808ST, LDB4548ST, LDFN343LS, LDFN3432T, LDFN4542W, LDTS5552S, LSDF9963ST, LSDT9908BD, LSDT9908SS, LSDT9908ST, LUDP8908SN, LUDP8996SN, LUDP8997SN, SKSDW2401S

Fitment reminder: Match the complete model number, including suffixes and revision digits, before ordering. Send us your model number if you need confirmation before ordering.