Unplug it, wait a minute, plug it back in
A huge share of error codes are the control board getting confused, not an actual broken part. A full power cycle clears more of these than people expect.
APPLIANCE & PC ERROR CODE DECODER
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Pick the brand, tell us what's blinking (or beeping), and we'll translate it into plain English — plus what to actually do about it. Now covering motherboard debug LEDs and BIOS beep codes too.
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Before you call anyone
Check the obvious stuff first
Closed water valves, kinked hoses, a door that didn't quite latch, or a clogged filter cause more service calls than any actual mechanical failure.
Know when to stop
Gas lines, refrigerant, and anything behind a high-voltage warning label are not DIY territory. That's what the "call a pro if" box on every code is for.
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Browse the database
AMI BIOS 4 codes
1 shortMotherboard (Beep Code)DRAM refresh failure
8 shortMotherboard (Beep Code)Display memory read/write failure
1 long, 2 shortMotherboard (Beep Code)Video error / BIOS can't initialize display
11 shortMotherboard (Beep Code)Cache memory error
ASUS 2 codes
CPU LEDMotherboard (Q-LED)CPU not detected / initializing
DRAM LEDMotherboard (Q-LED)Memory not detected / training failure
Apple 3 codes
4013SmartphoneRestore/update failed — connection issue
9SmartphoneRestore failed — security software or connection
3004SmartphoneRestore failed — server verification issue
Award BIOS 2 codes
1 long, 2 shortMotherboard (Beep Code)Video error
Continuous beepMotherboard (Beep Code)No power / loose card / short circuit
Bosch 3 codes
E15DishwasherAquastop / leak detected
E24DishwasherDrain error
Door lock errorWasherDoor lock error
Gigabyte 1 codes
AA / A0Motherboard (Debug LED)Boot process just starting / no display yet
LG 7 codes
OEWasherDrain error
IEWasherWater inlet error
UEWasherUnbalanced load
dEDryerDoor error
IFRefrigeratorIce maker / freezer fan error
CH05ACIndoor/outdoor communication error
Blink codeTVStandby LED blinking
MSI 2 codes
VGA LEDMotherboard (EZ Debug LED)Graphics card not detected
BOOT LEDMotherboard (EZ Debug LED)No valid boot device found
Roku 2 codes
014Streaming DeviceCan't connect to the network
003Streaming DeviceChannel store connection error
Samsung 8 codes
5EWasherDrain issue
4EWasherWater supply issue
UEWasherUnbalanced load
dE1DryerDoor not sensed closed
22ERefrigeratorCooling fan error
LEDishwasherLeak detected
SEOvenControl panel / keypad error
Blink codeTVStandby LED blinking
Sony 1 codes
Blink codeTVStandby LED blinking
Whirlpool 3 codes
F21WasherLong drain time
SdWasherOversudsing
F01DryerControl board communication error