Test Ice Maker Components — Test the Ice Maker Motor and Thermostat
Part of project
Ice Maker Repair · Step 5 of 7
In this video
If the general checks don't resolve the issue, the ice maker unit itself may have failed. There are various styles of ice makers, but two common types are the half-moon style and the flex-tray style. The video demonstrates testing a popular Whirlpool half-moon design. Remove the cover of the ice maker unit to expose the control module. Use a digital multimeter set to ohms to test the following components: 1. **Mold Heater**: Insert probes into the 'L' and 'H' holes. A good reading should be around 72 ohms. 2. **Motor**: Insert probes into the 'L' and 'M' holes. A good reading should be between 4400 and 8800 ohms. 3. **External Water Valve Solenoid**: Insert probes into the 'V' and 'N' holes. A good reading should be around 300 ohms. 4. **Mold Thermostat**: Insert probes into the 'T' and 'H' holes. When the thermostat is cold (below 15°F), it should show continuity (a reading of 0.0 ohms or close to it). After allowing it to warm up (above 15°F), it should no longer show continuity (an 'OL' or open loop reading). If any of these tests yield no reading or a reading significantly different from the expected values, the component has likely failed and the ice maker will need repair or replacement. For newer models, consult your manual for built-in test procedures, often involving a test button or paperclip insertion.
FAQs
What are the most critical safety steps I must take before starting an ice maker repair?
Always prioritize safety by first disconnecting power to your refrigerator at the circuit breaker. Next, locate and turn off the water supply valve connected to the ice maker. Double-check that both power and water are fully off before touching any components to prevent electrical shock or water damage.
Are all the listed tools, especially the multimeter and pliers, truly necessary for this beginner-level repair?
Yes, a multimeter is essential for accurately diagnosing electrical issues by testing components like the motor and thermostat. Pliers and various screwdrivers are fundamental for disassembly and reassembly. While you might not install a new circuit breaker, knowing where it is to safely cut power is critical for this repair.
My ice maker isn't producing any ice at all. What's the most common problem I should look for first?
If there's no ice, begin by checking the water inlet valve for clogs or signs of malfunction, and ensure the water supply line isn't frozen, kinked, or disconnected. If water flow is confirmed, the issue could be with the ice maker's motor or thermostat, which you can test with a multimeter as outlined in the steps.
Is the 4-hour estimated time realistic for a beginner, and what might cause the repair to take longer?
Four hours is a reasonable estimate for a beginner, allowing time for careful diagnosis, part acquisition, and reassembly. The repair might take longer if you encounter seized screws, need to perform extensive cleaning to clear blockages, or have difficulty identifying or sourcing the correct replacement parts for your specific appliance model.
Test Ice Maker Components — Test the Ice Maker Motor and Thermostat
Part of project
Ice Maker Repair · Step 5 of 7
In this video
If the general checks don't resolve the issue, the ice maker unit itself may have failed. There are various styles of ice makers, but two common types are the half-moon style and the flex-tray style. The video demonstrates testing a popular Whirlpool half-moon design. Remove the cover of the ice maker unit to expose the control module. Use a digital multimeter set to ohms to test the following components: 1. **Mold Heater**: Insert probes into the 'L' and 'H' holes. A good reading should be around 72 ohms. 2. **Motor**: Insert probes into the 'L' and 'M' holes. A good reading should be between 4400 and 8800 ohms. 3. **External Water Valve Solenoid**: Insert probes into the 'V' and 'N' holes. A good reading should be around 300 ohms. 4. **Mold Thermostat**: Insert probes into the 'T' and 'H' holes. When the thermostat is cold (below 15°F), it should show continuity (a reading of 0.0 ohms or close to it). After allowing it to warm up (above 15°F), it should no longer show continuity (an 'OL' or open loop reading). If any of these tests yield no reading or a reading significantly different from the expected values, the component has likely failed and the ice maker will need repair or replacement. For newer models, consult your manual for built-in test procedures, often involving a test button or paperclip insertion.
Frequently Asked Questions
What are the most critical safety steps I must take before starting an ice maker repair?
Always prioritize safety by first disconnecting power to your refrigerator at the circuit breaker. Next, locate and turn off the water supply valve connected to the ice maker. Double-check that both power and water are fully off before touching any components to prevent electrical shock or water damage.
Are all the listed tools, especially the multimeter and pliers, truly necessary for this beginner-level repair?
Yes, a multimeter is essential for accurately diagnosing electrical issues by testing components like the motor and thermostat. Pliers and various screwdrivers are fundamental for disassembly and reassembly. While you might not install a new circuit breaker, knowing where it is to safely cut power is critical for this repair.
My ice maker isn't producing any ice at all. What's the most common problem I should look for first?
If there's no ice, begin by checking the water inlet valve for clogs or signs of malfunction, and ensure the water supply line isn't frozen, kinked, or disconnected. If water flow is confirmed, the issue could be with the ice maker's motor or thermostat, which you can test with a multimeter as outlined in the steps.
Is the 4-hour estimated time realistic for a beginner, and what might cause the repair to take longer?
Four hours is a reasonable estimate for a beginner, allowing time for careful diagnosis, part acquisition, and reassembly. The repair might take longer if you encounter seized screws, need to perform extensive cleaning to clear blockages, or have difficulty identifying or sourcing the correct replacement parts for your specific appliance model.