Hotpoint Refrigerator Ice Cubes Small or Hollow:... | appliancefaults.com

Technical Background:

MCU logic and voltage paths.
The refrigerator's Main Control Unit (MCU) controls the ice maker operation. It energizes the water inlet valve based on temperature sensors and ice level feedback. Voltage is supplied to the water inlet valve (120V AC) via relays on the MCU. A faulty water inlet valve, low water pressure or a defective ice maker module can interrupt the ice making process, resulting in small or hollow ice cubes.

Symptoms:

US homeowner observations.
Small or hollow ice cubes being produced by the Hotpoint refrigerator's ice maker. Ice production may be slow or nonexistent. Ice cubes may also appear cloudy or have an unusual shape.

Possible Causes:

Low water pressure to the refrigerator.
Clogged water filter.
Frozen or restricted water supply line.
Faulty water inlet valve.
Defective ice maker module.
Low freezer temperature.

Solution:

1

Check the water supply pressure to the refrigerator. It should be at least 20 PSI. A pressure gauge can be connected to the water supply line.
2

Replace the water filter with a new Hotpoint approved filter. Note the filter part number and install it correctly.
3

Inspect the water supply line for kinks or freezing. Thaw the line with a hair dryer if frozen. Replace if kinked. Use a 1/4-inch compression fitting to make the connections.
4

Test the water inlet valve for proper operation. Use a multimeter to check for continuity when the ice maker calls for water (approximately 120V AC). If no continuity, replace the valve.
5

Inspect the ice maker module for physical damage or defects. Replace if necessary. Disconnect the power supply before changing the module.
6

Verify the freezer temperature is set to between 0-10 degrees Fahrenheit. Adjust the temperature using the control panel.
7

Check the fill tube to the ice maker for ice buildup. Clear ice from the fill tube with a turkey baster and warm water.

Safety Warning:

Disconnect power to the refrigerator at the breaker panel before performing any repairs. Use Lock-Out/Tag-Out (LOTO) procedures to prevent accidental re-energizing of the circuit. High voltage is present in the refrigerator's electrical system.

Prevention:

Replace the water filter every 6 months. Check the water supply line for kinks or freezing regularly. Clean the ice maker compartment periodically to remove any ice buildup.

Expert Tip:

Some Hotpoint refrigerators have a service mode that allows you to manually cycle the ice maker. To access the service mode, press and hold the freezer temperature UP and DOWN buttons simultaneously for 5 seconds. Then, press the ice maker button to start a test cycle.

Follow-up Questions:

Frequently Asked Questions

•How do I test the water inlet valve with a multimeter?

Disconnect the power to the refrigerator and then disconnect the wires to the water inlet valve. Set your multimeter to measure resistance (Ohms). Check for continuity across the valve terminals. If there is no continuity, the valve is likely faulty. Also, check for voltage (120V AC) at the valve when the ice maker calls for water.

•Where is the water filter located in my Hotpoint refrigerator?

The water filter location varies depending on the Hotpoint refrigerator model. It is typically located inside the refrigerator compartment, either in the upper right corner or in the base grille. Consult your owner's manual for the exact location.

•How do I thaw a frozen water line?

Disconnect the refrigerator from the water supply. Use a hair dryer on a low setting to gently warm the frozen section of the water line. Avoid using high heat, as this can damage the line. You can also wrap the frozen section in warm, wet towels. Once the ice has melted, reconnect the water supply and check for leaks.

Hotpoint Refrigerator Ice Cubes Small or Hollow: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I test the water inlet valve with a multimeter?

•Where is the water filter located in my Hotpoint refrigerator?

•How do I thaw a frozen water line?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: