LG Dishwasher Leaking or No Water? Connector Assembly ACJ73790102 – Fix Water Supply Failures Fast

Your LG dishwasher isn’t filling with water, is leaking at the inlet connection, or is showing a water supply error — and the household water supply and shutoff valve are both confirmed fine. In most LG dishwashers, this is caused by a failed or cracked connector assembly at the water inlet. When it fails, the dishwasher loses its sealed connection to the water supply, resulting in no fill, slow fill, or active leaking at the base of the unit. ⚡ Common failure point in LG dishwashers from the LDT, LDF, and LDP series. Part ACJ73790102 is the genuine OEM replacement that restores a leak-free water supply connection in one direct-fit swap.

❓ Is This the Right Part?

This is the correct fix if ALL of the following are true:

• ✔ Dishwasher powers on and cycles run normally otherwise
• ✔ Household water supply pressure is confirmed at spec
• ✔ Water inlet valve has been tested and is functioning
• ✔ Door latch and float switch are intact and operational
• ✔ ONLY problem is no fill, slow fill, or leaking at the water inlet connection point

Not sure? Send us your model number — we’ll confirm before you order.

🔧 Common Symptoms

• Dishwasher won’t fill with water — cycle starts but tub stays dry
• Water leaking from underneath the dishwasher at the front or sides
• IE error code displayed — water inlet error
• Dishwasher fills very slowly or incompletely
• Visible cracking, splitting, or mineral buildup on the connector fitting
• Hissing or dripping sound from the inlet area during or after a cycle

✔ If these symptoms match, this is the most likely failed component in the system.

✔ In most cases, replacing this connector assembly restores normal fill and operation immediately.

📦 Part Details

• Part Number: ACJ73790102
• Type: Dishwasher Water Inlet Connector Assembly — supply line fitting and connection hardware
• Replaces: OEM direct-fit connector assembly — supersedes ACJ73790101 (no modification required)
• Brands: LG

⚙️ Installation

Skill Level: Easy — 20–30 minutes. Shut off the water supply valve under the sink and disconnect power at the breaker or wall outlet before beginning. Pull the dishwasher forward to access the inlet connection at the rear or base, disconnect the supply line, unclip or unthread the old connector assembly, and install the new one in reverse order. Hand-tighten fittings only — do not overtorque plastic connectors. Restore water supply and run a short cycle to confirm no leaks before pushing the unit back into the cabinet.

✓ Compatible Models

LDT7797ST, LDF5545ST, LDP6797ST, LDT7808ST, LDP6809SS, LDP7808SS, LDT6809SS, LDPS6844AS, LDFN343LS, LDTS5552S, plus additional LG dishwasher models. Contact us to verify your model number before ordering.

💡 Pro Tip

✓ Model-Specific Repair Pages