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Error code reference

Samsung Dishwasher Error Code 1C

Low water level anomaly detected 3 times during a wash stage after HC condition is met; heater is no longer turned on and only washes for 10 minutes.

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What the 1C error code actually means

Your Samsung dishwasher detected that the water level inside dropped too low during washing, and this happened three times in a row. To protect the machine, it shut off the heating element and shortened the wash cycle to 10 minutes. This usually means water is not filling properly, the water meter inside is faulty, or water is leaking somewhere inside the tub.

Diagnostic procedure

The full 1C procedure

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1
First diagnostic step
Check the inlet valve operation; check the flowmeter for abnormalities; check for water leakage in the inner tank.
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Most common causes of 1C

Ranked by how often they cause this code
  1. 1Faulty or clogged inlet valve
  2. 2Flowmeter malfunction
  3. 3Water leakage from the inner tank
  4. 4Low household water pressure
  5. 5Kinked or blocked water supply line

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Questions people ask about 1C

What does 1C mean on a Samsung dishwasher?
The 1C code means the dishwasher detected a low water level condition three times during a wash stage after the heating cycle condition was already met. In response, the control board disables the heater and limits the wash to 10 minutes to protect internal components. The most common causes are a faulty inlet valve, a malfunctioning flowmeter, or water leaking from inside the tub. Diagnosing and fixing the root cause is necessary to restore normal operation.
Will resetting my Samsung dishwasher clear the 1C error code?
A reset may temporarily clear the 1C code and allow the dishwasher to run again, but if the underlying problem is not fixed, the code will return. The dishwasher triggers 1C only after three repeated low water level events, so a reset does not address the inlet valve, flowmeter, or leak issue causing it. Clearing the code without a repair is a short-term workaround at best.
How much does it cost to repair a Samsung dishwasher showing a 1C error?
Repair costs depend on which component is at fault. A replacement inlet valve typically costs in the range of $20 to $60 for the part alone, while a flowmeter can range from $15 to $50. If professional labor is needed, total repair costs including diagnosis and installation commonly fall between $100 and $250. Repairs involving internal leaks from cracked components or damaged seals may vary depending on the specific part and extent of the damage.
Can I fix the 1C error code on my Samsung dishwasher myself?
Some causes of the 1C error are DIY-friendly, such as checking that the water supply valve is fully open, inspecting the supply hose for kinks, and looking for visible leaks around the door seal. However, replacing the inlet valve or flowmeter requires comfort with appliance disassembly and basic electrical testing. If you are not familiar with working on appliances, a qualified technician should handle parts replacement.
Is it safe to keep using my dishwasher when the 1C code is showing?
Running the dishwasher repeatedly with an active 1C condition is not advisable. The control board does restrict operation by turning off the heater and capping the cycle at 10 minutes, which offers some protection. However, if the cause is an internal water leak, continued use could worsen the leak or cause water damage to surrounding cabinetry and flooring. Diagnosing the problem before continued use is the safer choice.

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