Error code · Dishwasher

Samsung Dishwasher One Light Blinking: Water Supply

Medium · inspection needed

Code: Blinking: Auto / Express 60 / Quick / Smart Auto (alone)
Appliance: Dishwasher
Brand: Samsung
Warranty: 30-day workmanship

What Blinking: Auto / Express 60 / Quick / Smart Auto (alone) means

Samsung dishwashers without a digital display flash one cycle light on its own to report a supply problem, and which light it is depends on the model: Auto, Express 60, Quick or Smart Auto. A single blinking light of that kind means the water pressure or temperature is not what the dishwasher needs. Digital-display models show this condition as 4C or 4E. The cycle stops and the tub may be partly filled or empty.

Common causes of Blinking: Auto / Express 60 / Quick / Smart Auto (alone)

Supply valve not fully open
Kinked or pinched fill line
Clogged inlet screen
Low household water pressure
Supply too cold or too hot

✓ One safe check you can try

1. Make sure the shutoff valve under the sink is fully open. 2. Check the fill line behind the dishwasher for kinks. 3. Run the kitchen faucet to confirm normal pressure. 4. Turn the dishwasher off and on. 5. Start a new cycle and watch the light.

! Why to stop there

Good pressure at the faucet does not show whether the dishwasher's inlet is restricted.
We test the fill valve and flow reading if the supply side checks out.
We give a written price ahead of any work, and cover our labor for 30 days.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Dishwasher codes

SRSamsung Dishwasher Code SR: Water Not Draining Out 1E / IE (rotary models)Samsung Dishwasher Code 1E / IE on Rotary Models: Heater Overheating Blinking: Heavy (without Express 60) / NormalSamsung Dishwasher Heavy or Normal Light Blinking: Leak Detected Blinking: Normal, Delicate + Quick / Normal, Delicate + Smart Auto / Normal, Quick+ + Smart Auto / Smart Auto, Normal + DelicateSamsung Dishwasher Normal Light Trio Blinking: Supply Water Too Hot Blinking: Normal + HeavySamsung Dishwasher Normal and Heavy Lights Blinking: Thermistor Reading Blinking: Normal, Heavy + Express 60Samsung Dishwasher Normal, Heavy and Express 60 Blinking: Thermistor Short Blinking: Normal, Heavy + Quick / Normal, Heavy + Smart AutoSamsung Dishwasher Normal, Heavy and Quick Lights Blinking: Low Water LC / LESamsung Dishwasher Code LC / LE: Leak Detected

Blinking: Auto / Express 60 / Quick / Smart Auto (alone)Blinking: Auto / Express 60 / Quick / Smart Auto (alone) questions

Which light blinks on my dishwasher?

It depends on the model. It is one of Auto, Express 60, Quick or Smart Auto, flashing alone. Check your manual or tell us the model when you call.

Is this the same as a supply code on newer units?

Yes. Digital-display models show 4C or 4E for the same condition, and we use the same checks. It uses the same checks at the supply, the fill line and the valve.

Could it be my house water pressure?

It could. Try another faucet in the home, and let us know if the pressure is weak everywhere. A weak supply to the whole house points to a different problem than the dishwasher.

Book a visit

Still seeing Blinking: Auto / Express 60 / Quick / Smart Auto (alone)?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 561-5298