Error Code 4C

The dishwasher is not getting enough water to run

Also displayed as: 4C

What This Means

Water supply pressure is low; Water supply valve is closed; Aqua stop is out of order; Foreign material in Water Supply Line or Water Valve filter; Water Valve connector disconnected; Water Valve coil not conductive; Main PBA defect; Power Relay error

First Thing to Check

Parts Involved

How to Fix

1. 1

   1. Check whether the faucet is open

2. 2

   2. Check whether the water supply has been cut off

3. 3

   3. Check whether any foreign material is in the Water Supply Line and the Water Valve filter — remove foreign material, clean filter with a brush

4. 4

   4. Check the connection for the Water Valve connector — reconnect

5. 5

   5. Check whether the coil in Water Valve is conductive (remove connector before measuring) — Normal: approx. 990 ohms +/- 10% (890-1089 ohms)

6. 6

   6. Check whether the water supply stops after water is supplied for 1 minute — check water supply pressure (> 1.0 bar). If faulty, replace Water Valve

7. 7

   7. Check whether the Water Valve is operating normally in the Main PBA — check Water Valve Relay: voltage between Blue wire (Number 6) of CN401 and Red wire of CN101 connector. Normal: 110-120V while operating

8. 8

   8. Check the Power Relay

This Error Applies To

Samsung DW80B7070A Series Dishwashers (2023) (2023–present)