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RCA Dishwasher lights flashing or blinking

If your RCA dishwasher lights are flashing or blinking, the machine is usually telling you a key part is not doing its job. On this symptom, the most common causes are a failed heating element or heating element assembly that is not bringing the water up to temperature fast enough, followed by a bad water inlet valve, a faulty door latch micro switch, or a shorted control board or main control board. When an RCA dishwasher has flashing error lights or the control panel starts blinking, it can also mean the dishwasher is blinking and not starting because the control is waiting for the right water temperature, proper water fill, or a closed-door signal before it moves ahead. A multimeter check for continuity on the heating element, heating element assembly, water inlet valve solenoids, and door latch switch can help narrow it down. If those parts test good, the control board or main control board becomes more likely. Enter your model number on RepairClinic.com to find the exact RCA dishwasher replacement part that fits your machine.

01 - RCA Dishwasher Heating Element

The heating element heats up the water to operating temperature. If the water doesn’t reach the proper temperature after a set amount of time, a light on the control panel might start flashing. To determine if the heating element has burned out, use a multimeter to test it for continuity. If the heating element does not have continuity, replace it.
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02 - RCA Dishwasher Heating Element Assembly

The heating element assembly heats up the water to operating temperature. If the water doesn’t reach the correct temperature after a set amount of time, a light on the control panel might start flashing. To determine if the heating element assembly has burned out, use a multimeter to test the heating element for continuity.
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03 - RCA Dishwasher Water Inlet Valve

If the dishwasher lights are flashing or blinking, the cause could be a faulty water inlet valve. You can use a multimeter to test the valve's solenoids for electrical continuity to help determine if the component is functioning properly or not.
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Highly Likely

04 - RCA Dishwasher Door Latch

A dishwasher's lights flashing or blinking could indicate a problem with a micro switch inside the door latch assembly. To determine if the micro switch is at fault, use a multimeter to test the switch for continuity. If the switch does not have continuity, replace it or the entire latch assembly.
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Highly Likely

05 - RCA Dishwasher Control Board

The control board provides power to nearly every component of the dishwasher. It's possible that the board has shorted and is causing the lights to flash or blink unexpectedly. Check the owner’s manual for possible fault codes as one of the components may have failed. If the control board is not sending power to one of the components, it's likely the control board is at fault and will need to be replaced.
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Common

06 - RCA Dishwasher Main Control Board

The main control board provides power to nearly every component of the dishwasher. It's possible that the board has shorted and is causing the lights to flash or blink. Check the owner’s manual for possible fault codes as one of the components may have failed. If the control board is not sending power to one of the components, it's likely the main control board is at fault and will need to be replaced.
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Common

Frequently Asked Questions

Why are my RCA dishwasher lights flashing or blinking?
Can a bad heating element cause my RCA dishwasher to blink and not start or finish?
How do I know if the water inlet valve is causing my RCA dishwasher flashing error lights?
Could a door latch problem make my RCA dishwasher lights blink?
How do I find the right RCA dishwasher part if I need a heating element, door latch, or water inlet valve?

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