Appliance Error Codes by Type & Brand

E15 Bosch · Dishwasher Water reached the base pan under the tub and the Bosch leak protection shut the cycle down. Moderate AE LG · Dishwasher Water collected in the LG base pan and lifted the leak float. Find the leak before restarting. Moderate U4 Daikin · Air Conditioner / Heat Pump The indoor unit has lost its data link with the outdoor unit, so the system can't cool or heat. Moderate E6 Mitsubishi Electric · Air Conditioner / Heat Pump The indoor unit isn't getting valid signals back from the outdoor unit over the S3 wire. Moderate E24 Bosch · Dishwasher Your Bosch couldn't pump the water out in time. Most often a clogged filter or a blocked drain… Low E25 Bosch · Dishwasher Something is jamming the Bosch drain pump, or the pump cover under the filter isn't seated.… Low

10 Rinnai · Water Heater / Boiler The Rinnai can't breathe: a frozen condensate line, a blocked vent terminal or a dirty air… High 11 Fujitsu · Air Conditioner / Heat Pump Error 11: the serial data link on terminal 3 between the Fujitsu indoor and outdoor units has… Moderate 11 Rheem · Water Heater / Boiler Rheem tankless didn't light at startup. Rheem's own first fix: check the gas shut-off valve… Moderate 11 Rinnai · Water Heater / Boiler The Rinnai tried to light but never proved a flame – gas off, air in the line or low gas… Moderate 12 Rinnai · Water Heater / Boiler The Rinnai lit but then lost its flame or stopped sensing it – usually gas supply, venting… Moderate 126 Trane · Air Conditioner / Heat Pump 126 on a Trane ComfortLink II thermostat: it lost its data link to the furnace, air handler… Moderate 13 Carrier · Air Conditioner / Heat Pump A limit or rollout switch stayed open too long, so the furnace has locked itself out for 3… High 21E Samsung · Refrigerator / Freezer The freezer's evaporator fan isn't reporting any rotation, usually because ice has trapped… Moderate 22E Samsung · Refrigerator / Freezer The fan that moves cold air through the fresh-food section isn't turning, most often because… Moderate 23E Samsung · Refrigerator / Freezer The fan that cools the condenser and compressor behind the bottom rear panel has stopped… High 29 Rheem · Water Heater / Boiler Condensing Rheem tankless: acidic condensate can't drain, so the heater stops before it floods… Moderate 31 Carrier · Air Conditioner / Heat Pump The inducer couldn't prove a clear vent, so the pressure switch stayed open and the burners… Moderate 33 Carrier · Air Conditioner / Heat Pump A high-temperature safety switch opened, usually because too little air is moving through… Moderate 3C Samsung · Washing Machine The control commanded the motor but didn't see the drum turn as expected: overload, jam, wiring… Moderate 434 Lennox · Air Conditioner / Heat Pump The Lennox outdoor control can't talk to the inverter drive that runs the variable-speed… Moderate 51 Fujitsu · Air Conditioner / Heat Pump Error 51: the indoor fan ran far slower than commanded for about a minute, so the Fujitsu unit… Moderate 5C Samsung · Washing Machine The washer couldn't empty the tub in time. On front-loaders the debris filter is the first… Moderate 84E Samsung · Refrigerator / Freezer The inverter tried to spin the compressor, but it didn't turn or ran outside its limits, so… High A1 Daikin · Air Conditioner / Heat Pump The indoor unit's circuit board couldn't load or apply its settings, so the head refuses to run. Moderate A3 Daikin · Air Conditioner / Heat Pump A3 means condensate is backing up in the indoor unit's drain pan and the float switch has… Moderate AE LG · Dishwasher Water collected in the LG base pan and lifted the leak float. Find the leak before restarting. Moderate AF Whirlpool · Dryer Whirlpool's vent monitor found restricted airflow: clogged lint screen or vent, or a crushed… Moderate C-21 Samsung · Oven / Range The Samsung range sensed too high an oven temperature – real overheating or a bad sensor… High CH05 LG · Air Conditioner / Heat Pump CH05: the LG indoor unit hears nothing back from the outdoor unit, so the compressor… Moderate CH10 LG · Air Conditioner / Heat Pump CH10: the indoor unit's fan motor isn't turning or isn't reporting its speed, so the unit shuts… Moderate CH21 LG · Air Conditioner / Heat Pump CH21: the outdoor inverter's power module saw a dangerous current peak and cut power… High CH38 LG · Air Conditioner / Heat Pump LG's protection stopped the system because the refrigerant level or pressure looks too low. High D80 LG · Dryer LG Flow Sense detected restricted airflow in the vent. The dryer still runs, but lint buildup… Moderate d90 LG · Dryer LG's duct sensor found a severe exhaust restriction (about 90%). Clean the whole vent before… High d95 LG · Dryer d95 is LG's highest duct-blockage level: about 95% restricted. Don't run more loads until… Critical