Fridge is warm, freezer is still cold
Usual causes: Evaporator fan, frosted-over coil, failed defrost heater or damper
Cold air is made in the freezer and blown into the fresh-food side. When the fan stops or the coil is buried in frost, the freezer stays cold while the fridge warms up. A thick, even frost on the freezer back panel is the tell for a defrost problem.
Technician Both sections are warm
Usual causes: Condenser fan, start relay, compressor, control board
If you hear clicking every few minutes and the compressor never settles into a hum, the start relay or compressor is the usual suspect. A silent unit with lights on points toward the control board or thermistor.
Technician Water on the floor or under the crisper drawers
Usual causes: Clogged defrost drain, cracked drain pan, water inlet line
Ice blocking the defrost drain sends meltwater into the cabinet. On models with a dispenser, a split supply line or loose inlet valve fitting leaks behind the unit.
Check first Freezer is frosting up
Usual causes: Door gasket, defrost timer or heater, door left ajar
Frost on food and walls usually means moist air is getting in. Frost concentrated on the rear panel with poor airflow points to the defrost system instead.
Check first Loud buzzing, grinding or rattling
Usual causes: Evaporator or condenser fan motor, ice on a fan blade, drain pan loose
Noise that stops when you open the freezer door is usually the evaporator fan. Noise from the bottom rear is the condenser fan or compressor mounts.
Technician Running constantly
Usual causes: Dirty condenser coil, failing gasket, low refrigerant
A fridge that never cycles off in a normal-temperature room is working too hard. Clean the coil first; if it still runs nonstop, a technician should check the sealed system.
Check first