Error Code Lookup
Type the code showing on your appliance's display, or a keyword like "vent" or "demo mode," to find out what it means and whether it needs a technician. Covers 22 verified codes across 5 appliance/brand combinations so far.
LG Refrigerator
View full guide →FF- Freezer fan issue, usually frost buildup jamming the fan — see full steps
rF- Refrigerator fan issue, usually frost buildup jamming the fan — see full steps
CH E / E CHService required- High-side refrigerant leak (condenser) — see full steps
CL E / E CLService required- Low-side refrigerant leak (evaporator) — see full steps
CFService required- Condenser fan not reaching proper feedback signal — see full steps
88- No fault detected (status check, not an error) — see full steps
OF F- Demo/Display Mode active (disables cooling) — see full steps
Samsung Dryer
View full guide →HC / hE / HC4 / 1HC- Heating error, usually a clogged lint screen or vent (electric dryers: also check for low voltage) — see full steps
Clg / Cg- Vent Blockage Test: vent clogged — see full steps
C80- Vent Blockage Test: ~80% clogged — see full steps
C90- Vent Blockage Test: 90%+ clogged — see full steps
C1 / CL1- Vent Blockage Test: laundry detected in drum (false positive, not a vent issue) — see full steps
Ct- Vent Blockage Test: dryer temperature out of valid test range — see full steps
tS / t5 / tC / tO / t0 / tE- Temperature sensor error, usually resolved by cleaning lint/vent — see full steps
Whirlpool Washer
View full guide →LdL- Lid not locking (something physically blocking the lock, or detergent buildup) — see full steps
LdU- Lid can't unlock (something sitting on top of the washer) — see full steps
Ofb- Load out of balance (washer's own correction routine) — see full steps
OL- Overload — see full steps
F# E#- System error — see full steps
Whirlpool Dishwasher
View full guide →F9E1- Drain fault (check drain/disposer, hose routing, air gap in that order) — see full steps
Samsung Oven
View full guide →tESt / tE5t- Demo Mode active (disables heating) — see full steps
bAd LinE- Power connection not seated properly — see full steps