Whirlpool HC Error Code — What It Means
On Whirlpool top-load HE washers, the HC error code indicates that the hot and cold inlet hoses are installed backwards. The washer has detected that the cold water supply is feeding the hot inlet valve and the hot supply is feeding the cold inlet valve. This code typically appears at the end of a wash cycle to flag the incorrect hose hookup.
The code is not a component failure in most cases. It is a plumbing installation error, often introduced when the washer is first installed, moved to a new location, or reconnected after service. Correcting the hose connections usually clears the code immediately.
Common Causes
- Hot and cold supply hoses swapped at installation The most common cause is simply reversing the hoses when connecting the washer to the wall valves or to the inlet valve ports on the back of the machine.
- Hoses crossed or kinked behind the washer Even if connected correctly at each end, hoses routed across each other behind the machine can result in reversed flow or confuse the inlet detection.
- Incorrect reconnection after moving the washer When a washer is relocated or pulled out for cleaning or repairs, hoses may be reattached to the wrong inlets without checking color or marking.
- Washer reconnected incorrectly after service A technician or DIYer may reconnect hoses in reverse after replacing an inlet valve or performing other rear-panel work.
Step-by-Step Fix
- Turn off the water supply at the wall shutoff valves behind the washer to prevent leaks or spray while you work.
- Unplug the washer from the electrical outlet for safety during any inspection or hose handling.
- Pull the washer forward enough to access the back panel and see both the wall connections and the inlet valve ports clearly.
- Inspect the hose connections at the washer inlet valves and confirm that the hot supply hose (usually marked red or H) is connected to the hot inlet and the cold hose (usually blue or C) is connected to the cold inlet.
- Swap the hoses if reversed by unscrewing them from the washer inlet valves and reattaching hot to hot and cold to cold, then hand-tighten each connection and snug with pliers.
- Check the routing behind the washer to make sure the hoses are not crossed, kinked, or pinched, and that each hose runs straight from the wall valve to the correct inlet.
- Restore water and power, then run a short test cycle to verify that the HC code clears and the washer fills and operates normally.
Parts Often Needed
| Part | Notes |
|---|---|
| Hot and cold inlet supply hoses | Amazon | Typically no replacement needed unless hoses are damaged, but make sure each is marked or color-coded for correct installation. |
| Inlet valve assembly | Amazon | Only required if the code persists after correct hose hookup and further diagnosis points to a valve or wiring fault, which is rare for HC. |
When to Call a Pro
Call a professional if you have confirmed that the hot and cold hoses are correctly connected at both the wall and the washer inlets, the hoses are not crossed or kinked, and the HC code still appears after running a test cycle. In that case the issue may involve the inlet valve temperature sensors, control board communication, or model-specific wiring that requires diagnostic tools and service documentation. Also contact Whirlpool support or a qualified technician if your model does not use the HC code for reversed hoses, since not all Whirlpool codes apply to every washer model.