Appliance & device error codes, explained
Find your error code to learn what it means, the likely causes, how to fix it yourself, and when to call a professional.
93 error codes · 4 guides · Independently written
Start here — guides
All guides →DIY or Call a Pro? The Honest Framework for Appliance Repairs (2026)8 min readAppliance Error Codes 101: How to Read Them Like a Technician8 min readHow Long Appliances Really Last — and When Replacing Beats Repairing (2026)9 min readOBD2 Scanners: Read Your Own Check Engine Light for the Price of One Diagnostic Fee9 min read
Repair or replace?
See the numbers →The rule is simple — if a repair costs more than half a new machine, replace it. Knowing which half you are in is the hard part, so we worked it out from the cost estimates on every code we cover. Hazardous codes are excluded from DIY on purpose: those start with a technician, not a part.
Error code rankings
All rankings →We triage every code by urgency, DIY difficulty, and cost — so you know whether to reset it or shut it off and call a pro.
Error codes by brand
Pick a brand, then your code for what it means, the likely causes, the step-by-step fix, and when to call a pro.
OBD-II Car P0011P0011 is a generic code meaning '"A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)'.OBD-II Car P0102P0102 is a generic OBD-II code meaning 'Mass or Volume Air Flow (MAF) "A" Circuit Low Input.OBD-II Car P0113P0113 means 'Intake Air Temperature (IAT) Sensor 1 Circuit High Input'.OBD-II Car P0128P0128 means the coolant temperature stayed below the thermostat's regulating temperature — in plain terms, the engine is not warming up to its proper operating temperature within the expected time.OBD-II Car P0141P0141 means 'O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)'.OBD-II Car P0171P0171 means the engine is running too lean on Bank 1 — there is too much air relative to fuel in the mixture.OBD-II Car P0174P0174 means the engine computer has detected that the air-fuel mixture on Bank 2 is 'too lean' — there is too much air and not enough fuel.OBD-II Car P0300P0300 means the engine computer has detected a random or multiple-cylinder misfire — combustion is failing intermittently across more than one cylinder rather than in a single, specific one (single-cylinder misfires set P0301–P030x instead).OBD-II Car P0301P0301 means the engine computer has detected a misfire in cylinder #1 — the combustion in that specific cylinder is failing to complete properly, either because of weak spark, wrong fuel delivery, or a mechanical problem.OBD-II Car P0303P0303 is a generic OBD-II code meaning a misfire has been detected in cylinder number 3.OBD-II Car P0325P0325 is a generic powertrain code that means the engine control module (ECM/PCM) has detected a malfunction in the Knock Sensor 1 (Bank 1) circuit.OBD-II Car P0340P0340 is a generic OBD-II code meaning 'Camshaft Position Sensor 'A' Circuit Malfunction.OBD-II Car P0401P0401 means the exhaust gas recirculation (EGR) system is not flowing enough exhaust gas.OBD-II Car P0420P0420 means the powertrain control module has decided the catalytic converter on Bank 1 (the engine bank that contains cylinder #1) is no longer cleaning the exhaust efficiently enough.OBD-II Car P0430P0430 means the powertrain control module has determined that the catalytic converter on Bank 2 is no longer cleaning the exhaust efficiently enough.OBD-II Car P0440P0440 is a generic OBD-II code that sets when the powertrain/engine control module (PCM/ECM) detects a general malfunction in the evaporative emission control (EVAP) system.OBD-II Car P0442P0442 means the evaporative emission control (EVAP) system has a small leak.OBD-II Car P0455P0455 means the engine computer has detected a large (gross) leak in the evaporative emission control system, known as the EVAP system.OBD-II Car P0700P0700 is a generic 'informational' code meaning the transmission control module (TCM) has detected a malfunction somewhere in the transmission control system and has requested the engine computer turn on the check engine light.
Samsung Air Conditioner E1E1 is a frequently displayed Samsung air conditioner (split / mini-split) indoor-unit code that points to a sensor or component fault.Samsung Dishwasher LC (1E / LE)LC stands for a leak/moisture fault — a leak sensor in the base of the dishwasher has detected water or dampness where it shouldn't be, so the machine stops to prevent a leak.Samsung Dishwasher OE (1E)OE is an over-level water error — the dishwasher senses more water in the tub than there should be, usually because it isn't draining properly.Samsung Dryer dCOn a Samsung dryer, dC (sometimes shown as DC) is a door-related error meaning the door is not closed or latched properly.Samsung Dryer HCThe HC error (related codes include hE, HC4, and 1 HC) means the Samsung dryer is getting too hot.Samsung Microwave SEOn a Samsung microwave, SE means a Key Short Error.Samsung Range SEOn a Samsung range or oven, SE means a Key Short Error - the control board thinks a button on the touch panel is shorted or being held down too long, so it stops and shows the fault.Samsung Refrigerator 22EThe 22E error (closely related to 22C) on a Samsung refrigerator points to the freezer evaporator fan - the fan that circulates cold air off the evaporator through the freezer and fridge.Samsung Refrigerator OF OF'OF OF' on a Samsung refrigerator isn't a fault — it means the fridge is in Demo/Cooling Off mode (used in stores).Samsung Washer 4CThe 4C error (shown as 4E on some older Samsung washers) means the washer is not filling with water correctly.Samsung Washer dCThe dC code on a Samsung washer signals one of two related problems depending on your model: the door is not detected as closed and locked (a Door error), or the laundry inside the tub is unbalanced (an Unbalanced Load error).Samsung Washer SC (5C)The SC error — which is actually the code 5C displayed in a way that often looks like 'SC' (and shows as 5E on older models) — means the washer is not draining water correctly, or at all.Samsung Washer UR (UB)The Ur error means the washer detected an unbalanced load during the spin cycle and is retrying: it slows down, adds water, and tries to redistribute the laundry so it can spin safely (Ur is sometimes described as 'Unbalanced Load Retry').
LG Air Conditioner CH 05CH05 (also shown as CH 05 or C5) is the most common LG air conditioner code.LG Dishwasher OEThe OE error on an LG dishwasher is a drain error (Outlet Error) — the water didn't drain out within the expected time.LG Dryer D80 (D90/D95)D80, D90, and D95 are Flow Sense codes on LG dryers that report how restricted the exhaust airflow is.LG Oven F9F9 means the oven is not heating properly — specifically, the oven failed to reach about 150°F (65°C) within roughly 5 minutes of being turned on.LG Refrigerator ER FFER FF (also shown as E FF) on an LG refrigerator means the freezer evaporator fan motor is not running normally, so the control board can't confirm the fan is spinning.LG Washer dE (dE1/dE2)The dE family of errors on an LG front-load washer is a Door Error — the washer can't confirm the door is closed and locked, so it won't start the cycle.LG Washer IEThe IE error on an LG washer is a water-inlet error (Inlet Error) — the machine isn't filling with enough water in time.LG Washer LEThe LE error on an LG washer is a Locked Motor / Motor Error — the control board senses that the motor is overloaded or cannot reach the correct speed to turn the drum, so it pauses to protect the motor and electronics.LG Washer OEThe OE error on an LG washer is a drain error (Outlet Error) — the machine could not drain the water used during the wash cycle within the expected time.LG Washer UEThe UE error on an LG washer means the load is unbalanced — the drum can't spin evenly, so the washer adds water and tries to redistribute the clothes.
Whirlpool Dishwasher F8 E4F8 E4 means the dishwasher has detected water where it should not be.Whirlpool Dryer PFPF stands for 'Power Failure' — it means a power interruption stopped the dryer mid-cycle.Whirlpool Microwave F2On a Whirlpool over-the-range microwave, F2 means the keypad (user interface) reported a problem to the control board.Whirlpool Oven F2On a Whirlpool oven or range, the F2 code points to a fault in the temperature-sensing system: an oven temperature sensor open or short circuit, or an oven-temperature-too-high condition.Whirlpool Washer F21The F21 error on a Whirlpool front-load washer means the water is draining too slowly (a 'long drain' error).Whirlpool Washer F5 E2The F5 E2 error means the Whirlpool washer's door (or lid) is not locking properly, so the cycle can't start.Whirlpool Washer F8 E1The F8 E1 error (sometimes shown as 'LF' or 'Lo FL') on a Whirlpool washer means the machine is not detecting the correct amount of incoming water — a 'long fill' / low-flow error.Whirlpool Washer Sud (Sd)The 'Sud' code (also shown as 'Sd' or '5d' on some models) means the Whirlpool washer detected too many suds in the drum.
GE Dishwasher C1C1 means your GE dishwasher took longer than expected to pump the water out — the drain step ran past about 2 minutes without finishing.GE Microwave F3On a GE microwave, F3 means a shorted touch pad (keypad) panel.GE Oven F2The F2 code (shown as F20 on some models) signals an over-temperature or runaway-heat condition.GE Refrigerator FFThe FF code on a GE refrigerator is a freezer-temperature warning (FF is often read as "Frozen Food").GE Washer dEdE is a door (or lid) error — the washer's control can't confirm that the door is fully closed and locked.
Maytag Dishwasher F8 E4F8 E4 means the dishwasher has detected water where it shouldn't be — typically in the base or drip pan beneath the tub.Maytag Dryer AFAF (also shown as "Check Vent") means the dryer has detected restricted air flow.Maytag Washer F5 E3The F5 E3 error means the Maytag washer's door (or lid) is not locking properly.
PlayStation PS4 CE-34878-0CE-34878-0 is one of the most common PS4 errors.PlayStation PS5 CE-100028-1CE-100028-1 means there is not enough free space on the PS5's storage to complete what you are doing — installing a game, downloading an update, or saving a capture.PlayStation PS5 CE-108255-1CE-108255-1 is a common PS5 error meaning an error occurred with the game or application.
Epson Printer 0x97Error code 0x97 means the Epson printer has detected an internal hardware problem — most often on the main board (motherboard) or another internal component — and has shut down to protect itself.Epson Printer 0xF10xF1 is a critical hardware error on Epson WorkForce, EcoTank, and similar inkjet printers.
Frigidaire Dishwasher i10i10 means your Frigidaire dishwasher detected a low fill — not enough water entered the tub fast enough during the fill step.Frigidaire Refrigerator SY EFSY EF (sometimes shown as 5Y EF on a digital display) is a system fault for the evaporator fan on Frigidaire refrigerators, most often French door models.
Rheem Furnace 3 FlashesOn a Rheem (or the near-identical Ruud) gas furnace, the integrated furnace control board flashes a diagnostic LED so you can read a fault at a glance — count the blinks (blink-blink-blink, pause, repeat).Rheem Tankless Water Heater Code 11Code 11 on a Rheem (and the closely related Ruud) gas tankless water heater means 'no ignition' — the unit tried to light the burner but no flame was detected.
Decode the blinking light before you call for repair
ErrorCodePedia turns a cryptic error code into a plan. For each code we explain what it actually means, the most likely causes in order, a clear step-by-step fix you can try yourself, a realistic repair-cost estimate, and an honest call on whether it is worth fixing or time to replace — plus exactly when to stop and call a professional.
We are independent and not affiliated with the brands listed, and codes and steps vary by model, so we date every page and link the official source. Always unplug an appliance before servicing and follow your model's manual. Start with a guide above, find your code, or read the common questions below.
Commonly searched codes
🚗 OBD-II P0011❄️ Samsung E1❄️ LG CH 05🍽️ Whirlpool F8 E4🍽️ GE C1🍽️ Maytag F8 E4🎮 PlayStation CE-34878-0🍽️ Bosch E15🖨️ Canon 5200❄️ Carrier E1
Frequently asked questions
＋ − Is an error code a serious problem?
Not always. Some codes just flag a full drain filter, an open door, or a one-time sensor glitch you can clear yourself in minutes. Others point to a failing pump, board, or heating element that needs a part or a technician. Each code page here rates the difficulty and tells you when it is safe to DIY versus when to call a pro.
＋ − Can I fix an appliance error code myself?
Often, yes — many of the most common codes are caused by clogs, kinks, loose connections, or things that just need a reset, all of which are safe to handle at home. We give the exact step-by-step fix, list the likely causes, and clearly flag the codes that involve electricity, gas, or sealed systems where a professional is the safer choice.
＋ − Why does the error code keep coming back after a reset?
A reset clears the display but not the underlying cause. If the code returns, something is still triggering it — a partial clog, a worn part, or a sensor reading out of range. Our fix steps are ordered to rule out the cheap, common causes first before you spend on parts or a repair call.
＋ − Where do I find the exact error code on my appliance?
It usually shows on the digital display, or as a blinking-light pattern on models without a screen. The code, plus your brand and appliance type, is all you need — search it here to get the meaning, causes, and fix. We also note which models a given code commonly appears on.
🔧 Independent & practical — 93 codes covered and growing, every page dated with safe DIY steps and honest repair-or-replace advice. About this site →