HC1
Samsung Washing Machine
Severity: CriticalWhat Does This Error Mean?
HC1 means the water temperature inside your Samsung washer exceeded the maximum safe limit. This is an overtemperature fault — the water got hotter than it should have. The machine stops the cycle immediately to protect you, your clothes, and the machine itself. Do not restart until you identify why the water overheated.
Affected Models
- WF45R6100AW
- WF50R8500AV
- WF56H9100AG
- WF45T6000AW
- Samsung front-load washers with internal heating elements
Common Causes
- Hot water supply hose connected to the wrong inlet — both inlets fed with hot water
- Home water heater set too high, above 60°C or 140°F
- Faulty thermistor giving incorrect low temperature readings so the heater runs too long
- Defective heating element not cycling off at the correct temperature
- Scale buildup on the heating element causing it to overheat before shutting down
How to Fix It
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Unplug the washer immediately and do not restart it. Allow the machine to cool for at least 30 to 45 minutes before doing anything else.
An overheated machine is a fire risk if restarted while still hot. Safety first.
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Check the hot and cold water inlet hoses at the back of the machine. The hot water hose must connect to the port labeled HOT. Cold to COLD. If both hoses feed hot water, the temperature will spike.
The ports are labeled on the back of the machine. The hot port is usually on the left.
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Check your home hot water heater thermostat. If it is set above 60°C (140°F), the incoming water temperature may be enough to trigger HC1 on certain wash cycles.
The recommended home hot water heater setting is 49°C to 60°C (120°F to 140°F) — hot enough to kill bacteria, cool enough to be safe.
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After the machine cools, plug it back in and run a cold-water-only cycle. Watch it carefully. If HC1 appears again on a cold cycle, the thermistor or heating element has failed and needs professional service.
A cold-water cycle should never produce an overtemperature error unless the sensor or heater is faulty.
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If overheating persists, call a Samsung technician. The thermistor or heating element will need to be tested with a multimeter and replaced if out of specification.
Samsung certified technicians can order OEM parts for accurate replacement.
When to Call a Professional
Do not attempt to service the heating element or thermistor yourself unless you have appliance repair experience. These components involve electricity and water in close proximity. Contact Samsung support at 1-800-SAMSUNG or hire a licensed appliance technician. Expect repair costs of $150 to $350 depending on which part failed.
Frequently Asked Questions
What is the difference between HC and HC1?
Both codes relate to overheating, but HC1 specifically indicates the temperature exceeded the absolute maximum threshold. HC is the general heater warning. HC1 is a more severe version that triggers at a higher temperature and is more likely to indicate a component failure.
Can I use my washer while waiting for repair?
Only if the cold cycle runs without triggering HC1. If cold cycles run fine, the fault is likely related to the heating element and you can use cold-water settings until the repair is done. If HC1 appears on cold cycles too, stop using the machine entirely.
How do I descale my Samsung washer heating element?
Run a Self Clean cycle with a washing machine descaler tablet or white vinegar. Descaling every 3 to 6 months in hard water areas prevents limescale buildup on the heating element. Buildup acts as insulation and causes the element to overheat, which can lead to HC1.