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Error code reference
Samsung Washer Error Code Hot&Low LED Flash
Water supply code - water supply issues including frozen water, defective valve, or PCB terminal not connected.
SourceSamsung Top-Loading Washer - Service Manual (WA45M3100A/A4)p. 19, 22-23
Diagnostic procedure
The full Hot&Low LED Flash procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check if the water supply is blocked due to an alien substance in the valve or check if water is supplied to the machine.
SourceSamsung Top-Loading Washer - Service Manual (WA45M3100A/A4)p. 19, 22-23
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Where this code is documented
2 manuals in the MyPros+ library document this code for Samsung washer.
Models covered by the manuals that document this code
75,000+ service documents · 20,000+ error codes · 100+ brands
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