- Appliances
- Washing machines
HC
Samsung HC on a washer: water temperature not as expected
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
Medium
Quick answer
On a Samsung washer, HC, HE or H1 flag a water temperature problem. Samsung says to check the washer is connected to the cold water supply (blue tap). If the connection is right and the code returns, call service.
Safety first
Stop and check this first
- Do not confuse HC or HE with HE1: Samsung defines HE1 as a heater that is not working and says to call service, with no home checks.
Safe checks you can perform
- Which tap the inlet hose goes to
- Hoses on their inlets if there are two
- Code after a wash with the connection verified
Leave these tasks to a qualified professional
- Do not attempt this professional task: Water installation check
- Do not attempt this professional task: Water temperature control measurement
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Water installation check
What they doIf the code depends on the supply, the installer or technician verifies the washer is fed with cold water and the hoses are on their inlets.
They must show youthe hose connected to the cold water tap.
In writingthe correction made to the installation and a test wash without the code.
Water temperature control measurement
What they doWith the connection already verified, the technician measures the temperature sensor and heating circuit with a multimeter against Samsung's specification.
They must show youthe measured values against the specification.
In writingwhich part fails according to the measurement, its part number and the reason for replacing it.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Which tap the inlet hose goes to
- Who:
- you, no tools, with the washer stopped.
- How:
- follow the hose from the back to the tap and check it is the cold supply (blue tap), as Samsung asks.
- Result that matters:
- whether the washer is getting cold water.
- If it goes to hot water:
- that is the likely cause; it needs reconnecting to cold (a plumber if you are unsure).
- If it goes to cold:
- the connection is ruled out; move to the next check.
- Evidence to keep:
- photo of the hose and the tap it is connected to.
Evidence: What do the codes on my washing machine mean?
Hoses on their inlets if there are two
- Who:
- you, looking at the back of the washer.
- How:
- if the machine has two inlets, check the blue hose goes to the blue inlet and the red one to the red, as Samsung US says.
- Result that matters:
- whether each hose is on the inlet of its colour.
- If they are swapped:
- that is the cause Samsung describes; put them right with the water turned off.
- If they are right or there is only one inlet:
- ruled out.
- Evidence to keep:
- photo of the rear inlets.
Evidence: Samsung US washing machine information and error codes
Code after a wash with the connection verified
- Who:
- you, with a normal programme.
- How:
- with the connection checked, run a wash and note whether HC, HE or H1 returns, and whether HE1 appears at any point.
- Result that matters:
- whether the code clears once the supply is correct.
- If it clears:
- the connection was the cause.
- If it returns or HE1 appears:
- the fault is inside the machine; book service.
- Evidence to keep:
- photo of the code if it returns and a note of the programme.
Evidence: What do the codes on my washing machine mean?
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Appliances
- Brand
- Samsung
- Product type
- Washing machines
Known code variants
- error HC lavavajillas Samsung
- H1
- HE
- lavadora Samsung error HE
- Samsung dishwasher HC
- Samsung dishwasher overheating HC
- Samsung HC agua caliente
- Samsung HC cold water connection
- Samsung HC dishwasher code
- Samsung HC hot water
- Samsung HC lavavajillas
- Samsung HC toma agua fría
- Samsung lavadora HC
- Samsung washer HC
- Samsung washing machine HE
- sobrecalentamiento lavavajillas Samsung
What it means
Samsung UK groups H1, HC and HE as a water temperature issue and its only instruction is to verify the cold water connection. Samsung US describes a similar case under its hot/cold codes: water arriving through the cold inlet is very hot because the hoses are swapped. If the connection is fine, the warning points to temperature sensing or control inside the machine. Do not confuse it with HE1, which Samsung defines as a heater that is not working, or HE2 on the dryer section.
Warnings and stop conditions
- Mediumsource verified
Do not confuse HC or HE with HE1: Samsung defines HE1 as a heater that is not working and says to call service, with no home checks.
Evidence: What do the codes on my washing machine mean?
Symptoms and causes
Probable causes · in order
- Inlet connected to hot waterCommon
The cause Samsung asks you to check first. Fits if the hose goes to a hot tap or a mixed supply instead of the blue cold tap.
Evidence: What do the codes on my washing machine mean?
- Swapped hoses on two-inlet modelsPossible
Samsung US says very hot cold water comes from swapped hoses. Only applies if your washer has hot and cold inlets.
Evidence: Samsung US washing machine information and error codes
- Temperature sensing faultPossible
If the connection is right and the code persists, the problem is inside: sensor, heating or board. A technician separates them by measuring.
Evidence: What do the codes on my washing machine mean?
Virtual technician
Does HC still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Samsung US washing machine information and error codes
Samsung Electronics · 2026 · official_doc
- 2
What do the codes on my washing machine mean?
Samsung · 2026 · official_doc
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