Field pattern: new ice maker, still no ice (water supply, valve and fill tube first)

Most no-ice calls are water problems, not ice-maker problems. Techs check freezer temperature, supply pressure and the filter, then the inlet valve and a frozen fill tube, and only then the ice maker. Replacing the ice maker first is the expensive wrong turn, and a fill tube thawed without fixing why it froze comes back.

Cross-checked ~45 min moderateBrands: All

Before you start

Unplug before touching inlet-valve terminals
Live-voltage checks at the valve: insulated probes and dry hands
Do not use a heat gun on plastic fill tubes or liners

Diagnostic steps

Unlock all 7 steps with expected values

Full library + AI assistant + the OnCall Tech app for iPhone & Android. $34.90, one time.

Get lifetime access

OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

More refrigerators guides

Guide · Refrigerator

Adaptive defrost control (ADC) board: how to diagnose it

An adaptive defrost board replaces the old cam timer. It counts compressor run time (and on some boards door-open time) and adjusts the next defrost interval based on how long the last one took. Test the heater and the cold bimetal first, then force a defrost: if the heater warms on a forced defrost but the coil still ices, the board isn't starting defrost on its own.

8 steps ~60 minmoderate

Guide · Refrigerator

Ice dispenser not dispensing ice (ice maker is making ice)

Most cases are mechanical: cubes fused into a block, a bin not fully seated on the auger drive, or ice behind the auger motor. After that, check the electrical path: door switch, dispenser switch, auger motor voltage and, on crushed/cubed models, the cube solenoid. Water dispensing working is a useful clue that the dispenser control has power.

8 steps ~45 minmoderate

Guide · Refrigerator

Refrigerator runs all the time

First 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.

8 steps ~45 mineasy