Sub-Zero · Refrigerator error code
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Guide · RefrigeratorFirst decide if it's really a problem. Whirlpool says 40-80% run time is normal at average room temperature, and newer variable-speed compressors are designed to run long at low speed. If it's truly excessive, the usual causes are heat-rejection problems (dirty condenser, dead condenser fan), air leaks (gaskets, doors) and a frosted evaporator. A compressor or refrigerant fault is a referral.
Guide · RefrigeratorOn Sub-Zero units the condenser sits behind the top grille (or the kickplate on undercounter models) and loads up with dust and pet hair; the service indicator generally means a compressor is running too long to hold temperature. The common wrong turn is quoting a sealed-system repair or a board before the condenser has been properly cleaned, the condenser fan confirmed and the unit given a full day to recover.
Guide · RefrigeratorFind where the noise is and when it happens. Scraping in the freezer that stops when the door opens is the evaporator fan, often hitting ice. A squeal from the bottom rear is the condenser fan. Clicking every few minutes with no cooling is a start problem.
Sub-Zero · Refrigerator
10 1 02
Zone 1 cabinet thermistor unstable
Sub-Zero · Refrigerator
10 r 00
Refrigerator evaporator thermistor open
Sub-Zero · Refrigerator
10 r 02
Refrigerator evaporator thermistor unstable
Sub-Zero · Refrigerator
10 r 09
Evaporator reads warmer than cabinet
Sub-Zero · Refrigerator
15 1 01 / 15 2 01
Compressor relay reported stuck closed
Sub-Zero · Refrigerator
20 2 07
Freezer defrost under-heat