Error code · Dishwasher

Samsung Dishwasher Heavy and Delicate Lights Blinking: Heater Trouble

Medium · inspection needed

Code: Blinking: Heavy + Delicate
Appliance: Dishwasher
Brand: Samsung
Warranty: 30-day workmanship

What Blinking: Heavy + Delicate means

When the Heavy and Delicate lights blink together on a Samsung dishwasher without a digital display, the heater is failing. The control expected the water to warm up and found that it did not, or that the heating circuit is not behaving as it should. Light names can vary by model. Digital-display models report heater trouble through codes such as HE or HC1. You may notice cool dishes, detergent that has not fully dissolved, or a cycle that stops.

Common causes of Blinking: Heavy + Delicate

Heater not warming the water
Temperature sensing that lags behind the heater
Heater wiring and connection
Water level too low for heating

✓ One safe check you can try

1. Turn the dishwasher off. 2. Empty it and fill the detergent drawer. 3. Confirm the supply valve is open and the tub fills normally. 4. Run a Normal cycle. 5. If the same lights blink, call us. Tell us which lights were blinking on your model.

! Why to stop there

A normal fill does not prove the heater is working.
We test the heater and the temperature reading before choosing a part.
Our price goes on paper before work starts, and the job has 30 days of workmanship coverage.

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

1E / IE (rotary models)Samsung Dishwasher Code 1E / IE on Rotary Models: Heater Overheating SRSamsung Dishwasher Code SR: Water Not Draining Out 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: Heavy + DelicateBlinking: Heavy + Delicate questions

Does this mean my dishwasher is not heating?

It points to heater trouble. We check whether the water warms and whether the control reads the temperature correctly. A simple test cycle gives us the first answer.

Will dishes still get clean?

Poorly. Cold water weakens detergent, so repeating the cycle will not fix the cause. Wasted water and a second cycle only add cost without clean results.

Is this the same as unable to heat?

It is close but listed separately for another light pair. We test the same circuit for both. Both involve the heater, so the work starts at the same place.

Book a visit

Still seeing Blinking: Heavy + Delicate?

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

(713) 561-5298