Amana Fridge Compressor Clicking Once Then Stopping:... | appliancefaults.com

Technical Background:

The Amana refrigerator's Main Control Unit (MCU) sends a 120V AC signal to the compressor start relay. The start relay provides a temporary boost to the start winding of the compressor motor. If the compressor motor is locked or there are issues with the start components (relay, capacitor), the overload protector will trip, preventing damage to the compressor. Voltage fluctuations can also affect compressor starting ability.

Symptoms:

The Amana refrigerator's compressor clicks once when attempting to start, then stops. The refrigerator is not cooling. The overload protector might trip, causing the clicking to repeat periodically.

Possible Causes:

Faulty start relay
Bad start capacitor (if equipped)
Locked compressor rotor
Low voltage at the outlet
Overload protector tripping
Failing compressor

Solution:

1

Unplug the Amana refrigerator from the 120V AC outlet.
2

Locate the compressor compartment at the rear of the refrigerator. Remove the access panel using a 1/4-inch nut driver.
3

Visually inspect the start relay and overload for signs of burning or swelling. Replace if damaged.
4

Use a multimeter to test the start relay for continuity. An open circuit indicates a faulty relay and requires replacement.
5

If a start capacitor is present, discharge it safely with a resistor. Then, use a capacitor tester to verify its capacitance is within the specified range. Replace if out of spec.
6

Check the voltage at the refrigerator outlet using a multimeter. It should read approximately 120V AC. Low voltage can prevent the compressor from starting.
7

If the relay and capacitor are good, a locked compressor rotor or a failing compressor are likely causes. Testing the compressor windings for shorts or opens requires advanced troubleshooting and may necessitate licensed technician service.

Safety Warning:

Disconnect power (Lock Out/Tag Out) before working on any electrical components. Refrigerant circuits are under pressure; avoid puncturing or damaging them. The compressor circuit operates at 120V AC and poses a risk of electric shock.

Prevention:

Regularly clean the condenser coils (at least twice a year) to ensure proper airflow and cooling. This reduces stress on the compressor and extends its lifespan. Periodically check the voltage at the outlet.

Expert Tip:

Some Amana refrigerators have a service mode. Consult the service manual for the specific model to access diagnostic functions and error codes. Often pressing the Freezer Temp Down and Refrigerator Temp Up buttons simultaneously for 3 seconds will enter service mode, then use the same buttons to cycle error codes.

Frequently Asked Questions

•How do I safely discharge a start capacitor?

Use a 10,000-ohm, 2-watt resistor with insulated alligator clip leads. Connect the resistor across the capacitor terminals for several seconds to safely discharge it.

•What are the typical resistance values I should expect when testing compressor windings?

Typical resistance values for compressor windings are usually very low, a few ohms. Consult the service manual for your specific Amana model. Significantly higher or open readings suggest a faulty compressor. Shorted windings will have very low resistance between them and to the compressor shell.

•How do I clean the condenser coils on my Amana refrigerator?

Unplug the refrigerator. Locate the condenser coils (usually at the back or bottom). Use a vacuum cleaner with a brush attachment to remove dust and debris from the coils. Be careful not to damage the coils.

Amana Fridge Compressor Clicking Once Then Stopping: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I safely discharge a start capacitor?

•What are the typical resistance values I should expect when testing compressor windings?

•How do I clean the condenser coils on my Amana refrigerator?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: