ADC Washer Error Code E4

The E4 code on an ADC washer means the machine detected a water inlet fault. The control board activated the solenoid valve to begin filling the tub, but the water level did not rise within the pre-established time limit. This points to a problem with the water supply, the inlet valve, or the water level sensing system.

Pressing ESC will end the current program and may clear the displayed error, but the underlying cause must be resolved or the code will return on the next fill cycle. The machine provides the option to press START to continue or ESC to abort, but neither action repairs the root cause of the fault. Diagnose and correct the water supply or valve issue before running another cycle.

Repair costs vary depending on the cause. If the issue is simply a closed valve or a clogged inlet screen, there may be little to no cost involved. Replacing a faulty water inlet solenoid valve typically runs in the range of $30 to $100 for the part, plus labor if a technician is needed. A defective pressure switch is generally in a similar price range, with total repair costs varying based on local labor rates.

Start by checking that both water supply valves behind the washer are fully open and that the hoses are not kinked. Next, inspect the inlet valve screens for sediment buildup and clean them if blocked. If the water supply appears normal, the inlet solenoid valve or pressure switch may need testing and possible replacement. Pressing START will allow the machine to attempt continuing the cycle after you have addressed any obvious supply issues.

Continuing to run the washer without addressing E4 is not recommended. If the tub is not filling correctly, the machine may attempt to run a wash cycle without sufficient water, which can affect wash performance and potentially stress other components. Identify and resolve the fill issue before resuming normal operation.