RCA ice maker produces ice that is too small, even on the largest size setting.

Safety first: Unplug the unit and drain water before servicing.

• Step 1 – Clean water system: Descale the reservoir, pump, and water distribution tray with vinegar solution to remove mineral buildup.
• Step 2 – Check pump output: With the cover removed and unit briefly powered, observe water flow over the evaporator. Weak or uneven flow suggests a failing water circulation pump.
• Step 3 – Verify ice size setting: Confirm the size button is set to the largest cube size and that the indicator responds correctly.
• Step 4 – Control board: If water flow is strong and the unit still harvests too early, the main control board may be mis-timing the freeze cycle and could require replacement.