Written by
Nadia Okafor Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codeHC4
ApplianceDishwasher
HC4 symptoms
HC4 can pop up straight away on a Samsung dishwasher. What you may notice:
A wash that finishes
Drying that fails or stops short
A blast of very hot air at the door vent right before the stop
Beeps toward the end
The fix Samsung gives
Make sure the outside vent has nothing over it, and arrange the load so no dish presses on the vent outlet inside the tub, leaving the hot air a free path.
Next codes to read
HC2: a similar early drying stop, minus the hot air
Booking Samsung dishwasher service in San Francisco
If HC4 returns, ring (415) 969-6153 about Samsung dishwasher repair in the Bay Area, and tell us the code and model number along with how the vent and load looked.
Model compatibility: Samsung reuses codes across series and model years, so HC4 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Drying fails or ends early, with unusually hot air at the door vent.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
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Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
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Ready to get your Samsung appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
