Error Code Lookup

Enter the error code shown on your washer, dryer, dishwasher, or other appliance and we will explain what it means in plain English, list the likely causes ranked by probability, walk you through the fix step by step, and tell you whether to DIY or call a pro. Current coverage focuses on hand-written fixes for the most common Samsung, LG, Whirlpool, GE, and Bosch codes.

What you get for each code

  • Plain-English meaning of the error code
  • Most common causes ranked by likelihood
  • Step-by-step fix instructions with difficulty rating
  • Estimated repair cost (DIY vs professional)
  • Whether the fix is safe to DIY or requires a technician

Error Code Lookup

Enter your appliance error code to find what it means and how to fix it. Hand-written fixes for the most common Samsung, LG, Whirlpool, GE, and Bosch codes.

11 error codes found

E4

Samsung WasherWater Supply Issue

Samsung washer error E4 means your machine isn't getting enough water. This is usually a quick fix — most people solve it in under 15 minutes without spending a dime.

$0-$50
UE

Samsung WasherUnbalanced Load

The UE error code indicates your Samsung washer has detected an unbalanced load during the spin cycle. The machine stops spinning to prevent damage.

$0-$200
OE

LG DishwasherDrain Error

LG dishwasher error OE means water isn't draining properly. This is typically caused by a clogged drain hose, blocked filter, or garbage disposal connection issue.

$0-$150
F5 E1

Whirlpool DryerDoor Switch Failure

Whirlpool dryer F5 E1 error means the door switch is not detecting that the door is properly closed. The dryer won't start until it confirms the door is shut.

$10-$100
E1

GE WasherWater Fill Timeout

GE washer error E1 indicates the machine took too long to fill with water. Similar to other brands' water supply errors, this is usually caused by restricted water flow.

$0-$100
E15

Bosch DishwasherWater in Base Pan

Bosch dishwasher E15 means water has been detected in the base pan underneath the dishwasher tub. The safety float switch has activated to prevent flooding.

$0-$300
P0171

OBD-II CarSystem Too Lean (Bank 1)

OBD-II code P0171 means the engine is running with too much air relative to fuel on cylinder bank 1. The oxygen sensor sees less unburned fuel in the exhaust than expected, so the engine computer (ECU) sets the code and turns on the check engine light. The car often still runs, but fuel economy drops and the engine may hesitate or stumble at idle and low load.

$0-$400
P0300

OBD-II CarRandom/Multiple Cylinder Misfire Detected

OBD-II code P0300 means the engine computer detected misfires on multiple cylinders within a short period. You may feel rough idle, hesitation under acceleration, or shaking at stoplights. The check engine light typically flashes (rather than glowing steady) during an active misfire — that flashing indicates damage to the catalytic converter is happening right now.

$30-$600
P0420

OBD-II CarCatalyst System Efficiency Below Threshold (Bank 1)

OBD-II code P0420 means the catalytic converter on cylinder bank 1 is not cleaning the exhaust as efficiently as it should. The car still runs and drives normally — emissions are the only thing affected — but you will fail emissions testing in states that require it, and the underlying problem can shorten the catalyst's remaining life.

$0-$1500
P0442

OBD-II CarEvaporative Emission Control System Small Leak Detected

OBD-II code P0442 means the evaporative emissions (EVAP) system has a small leak — somewhere between the fuel filler cap, the fuel tank, and the engine, fuel vapors are escaping rather than being captured and burned. The car drives normally; the only symptom is the check engine light and a faint fuel smell near the rear of the vehicle when fueling.

$0-$250
P0700

OBD-II CarTransmission Control System Malfunction

OBD-II code P0700 is a "request code" — the engine computer is telling you the transmission control module (TCM) has detected its own fault. P0700 by itself is not a specific failure; it tells you to look at the transmission-specific codes (typically starting with P07XX) that should accompany it. Symptoms range from harsh shifting to limp-mode (limited to one or two gears) depending on the underlying fault.

$100-$3000