Samsung dishwasher code 4C: water supply problem

What it means

Water is arriving at too low a pressure or too low a temperature.

What to try

Unplug the dishwasher before any step beyond a quick look, and turn the water off before touching hoses.

1. Make sure the water valve under the sink is fully open.
2. Check the supply line for kinks.
3. Run the hot tap at the kitchen sink until it runs hot, then start the cycle.

Call a technician if

Resetting a Samsung dishwasher

Samsung’s reset for most faults: switch the dishwasher off at the breaker for about 30 seconds, then restart the cycle. If the code returns, request service.

Still stuck?

Dishwasher won’t start: full Fix Finder6 checks for any brand, quickest first.

Sources