Overview
The water inlet switch in an ice maker controls the flow of water into the ice mold. If the ice maker is not filling with water, the inlet switch may be faulty and should be tested.
Caution
Please read our safety information before attempting any testing or repairs.
Before testing the water inlet switch, unplug the refrigerator to avoid an electrical shock hazard.
Identifying Your Ice Maker Type
- Modular Units: Have holes in the module’s face plate for test probes. If you see several holes, each marked with a letter, it is a modular unit. Follow the control module instructions for testing.
- Component Units: Usually have exposed gears and don’t have holes for test probes.
Testing the Water Inlet Switch (Component Units)
- Unplug the Refrigerator:
- Ensure the refrigerator is unplugged to avoid electrical shock.
- Access the Ice Maker:
- Remove the outer face plate of the ice maker. If there is a knob, pull it off first, then pry off the face plate with a small screwdriver.
- Identify the Inlet Switch:
- Locate the water inlet switch within the ice maker. This switch is typically activated by a cam or lever connected to the ice maker’s cycling mechanism.
- Disconnect the Switch:
- The switch will be connected by two wires. Label the wire placement on the switch before disconnecting the wires.
- The wires are connected with slip-on connectors. Firmly pull the connectors off of the switch terminals (do not pull on the wire). You may need to use a pair of needle-nose pliers to remove the connectors.
- Test the Switch for Continuity:
- Use a multitester set to the ohms setting X1.
- Place a probe on each terminal of the switch.
- The multitester should display a reading of zero or near zero (indicating continuity) when the switch is activated. When the switch is not activated, the reading should be infinity (indicating an open circuit).
- Evaluate the Results:
- If the reading is as expected (zero or near zero when activated, infinity when not activated), the switch is likely functioning correctly.
- If the reading is not as expected, the switch is faulty and should be replaced.
Reassembling the Ice Maker
- Reconnect the Switch:
- Reattach the wires to the switch terminals, ensuring they are securely connected.
- Reinstall the Face Plate:
- Replace the face plate and knob (if any), ensuring all components are properly secured.
- Restore Power:
- Plug the refrigerator back in and restore power.
- Test the ice maker to ensure it operates correctly with the functioning water inlet switch.
By following these steps, you can effectively test the water inlet switch in your ice maker and determine if it needs to be replaced to restore proper function.
