Appliance Error Codes by Type & Brand
Appliance error codes are the manufacturer's way of telling you what the control board detected – a drain that is too slow, water that doesn't heat, a door that won't lock. The same code can mean something completely different on another brand, so choose your appliance type and brand first. Each page covers the likely causes, safe checks you can do yourself, how to reset the code and when it is time to call a technician.
180Codes
2.7Average severity
11%High or critical
48%DIY-friendly
Severity distribution
Most viewed
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
E15
Bosch · Dishwasher
Water reached the base pan under the tub and the Bosch leak protection shut the cycle down.
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
AE
LG · Dishwasher
Water collected in the LG base pan and lifted the leak float. Find the leak before restarting.
Moderate
All codes (180)
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
C-d0
Samsung · Microwave
The control saw one button pressed continuously for more than about 10 seconds and locked…
Minor
C-F2
Samsung · Oven / Range
The touch control and the main board stopped talking to each other; a long power reset often…
Low
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
dC
Samsung · Washing Machine
The washer tried to lock the door or lid and couldn't confirm it – often clothing or residue…
Low
dE
LG · Washing Machine
The LG door or lid switch doesn't report closed and locked. Check the latch hook first, then…
Low
dF
Samsung · Dryer
The Samsung dryer isn't getting a valid signal from its door switch, so it won't start or stops…
Low
dHE
LG · Washer-Dryer
dHE on an LG washer dryer combo: the drying system failed – usually the drying fan motor.
Moderate
DL
Speed Queen · Washing Machine
Speed Queen front-load Er dL: the door lock reported unlocked mid-cycle. Check the latch, lock…
Moderate
dr
Speed Queen · Washing Machine
Speed Queen Er dr: the control still sensed water after draining. Hose, pump inlet, pump power…
Moderate
E003
Navien · Water Heater / Boiler
The heater sparked and opened its gas valve, but never saw a flame – often a closed valve or no…
Moderate
E01
Bosch · Dishwasher
The main control found a fault in the circuit that powers the heat pump. Start with a breaker…
Moderate
E011
Bosch · Oven / Range
The oven control thinks a key or touch field is being pressed continuously and blocks operation.
Low
E012
Navien · Water Heater / Boiler
The burner lit, then lost its flame signal mid-cycle – think gas pressure, grounding or a dirty…
Moderate
E02
A. O. Smith · Water Heater / Boiler
The tank water got hotter than the safety limit, so the ECO cut power to both elements – reset…
Moderate
E04
A. O. Smith · Water Heater / Boiler
The electronic thermostat can't power the upper element; the lower one still works, so hot…
Low
E-08
Samsung · Oven / Range
The oven didn't warm up to about 100°F within 10 minutes of starting, so the range stopped…
Moderate
E09
Bosch · Dishwasher
The Bosch sees no working heater circuit. On most models the heater is built into…
Moderate
E09
Bosch · Dryer
Bosch lists E09 as an electronic fault for a technician; heat-pump models often have a bad…
Moderate
E1
Goodman · Air Conditioner / Heat Pump
E1: the low-stage pressure switch reads closed before the inducer starts, so the furnace won't…
Moderate
E1
Gree · Air Conditioner / Heat Pump
E1: refrigerant pressure on the high side got too high and the Gree unit stopped the compressor…
Moderate
E101
Samsung · Air Conditioner / Heat Pump
The indoor unit waited too long for the outdoor unit to answer on the F1/F2 link and shut…
Moderate