Amana Refrigerator Leaking Water Inside Crisper Drawers:... | appliancefaults.com

Technical Background:

The refrigerator's Main Control Unit (MCU) initiates defrost cycles based on run time and evaporator temperature. The defrost cycle melts frost buildup on the evaporator coil. The resulting water drains through a drain tube to a pan at the bottom of the refrigerator where it evaporates. If any part of the defrost system fails, ice can block the drain, causing water to overflow and leak into the refrigerator compartment. The MCU relies on thermistors and the defrost thermostat to properly regulate this process. Voltage paths involved include 120V AC to the defrost heater and low voltage DC for sensor readings.

Symptoms:

The homeowner reports water leaking inside the crisper drawers of their Amana refrigerator, originating from the top of the refrigerator compartment.

Possible Causes:

Clogged defrost drain.
Icing of the evaporator coil due to a faulty defrost heater.
Defective defrost thermostat (bi-metal switch).
Air leak allowing moist air into the refrigerator.
Improper door seal.

Solution:

1

Unplug the refrigerator from the outlet.
2

Locate the defrost drain, usually at the back wall of the freezer compartment above the evaporator coil. Access typically requires removing the back panel with a 1/4-inch nut driver.
3

Use a turkey baster with warm water or a pipe cleaner to clear any blockage in the drain. A wet/dry vacuum can also be used.
4

Inspect the defrost heater for continuity using a multimeter. A good heater will typically read between 20-50 ohms. Replace if open.
5

Check the defrost thermostat (bi-metal switch) for proper function. It should be closed when cold (below 40 degrees F) and open when warm. Replace if faulty. Use a multimeter to test continuity.
6

Examine the door seal for damage or gaps. Clean the seal and the refrigerator frame where it makes contact. Replace if necessary. Inspect the hinge side for sagging.
7

Ensure the refrigerator is level to promote proper drainage.

Safety Warning:

Disconnect power to the refrigerator before performing any repairs. Lock Out/Tag Out (LOTO) procedures must be followed. Be aware of potential high voltage (120V AC) when testing electrical components.

Prevention:

Periodically clean the refrigerator's interior and exterior. Inspect the door seals regularly for damage. Clear the defrost drain at least once a year.

Expert Tip:

Some Amana models have a service mode that allows you to manually initiate a defrost cycle. Consult the service manual for the specific key sequence for your model.

Follow-up Questions:

Frequently Asked Questions

•How do I access the defrost heater on my Amana refrigerator?

The defrost heater is typically located behind the back panel inside the freezer compartment, covering the evaporator coil. You will usually need to remove screws with a 1/4-inch nut driver to access this panel.

•What is the proper way to test a defrost thermostat?

A defrost thermostat is a bi-metal switch. At temperatures below approximately 40 degrees F, it should be closed (showing continuity with a multimeter). Above that temperature, it should be open (no continuity).

•How often should I defrost my Amana refrigerator if it's a manual defrost model?

Manual defrost refrigerators should be defrosted when the frost buildup on the freezer walls reaches approximately 1/4 to 1/2 inch thick. This will help maintain efficient cooling and prevent water leakage.

Amana Refrigerator Leaking Water Inside Crisper Drawers: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the defrost heater on my Amana refrigerator?

•What is the proper way to test a defrost thermostat?

•How often should I defrost my Amana refrigerator if it's a manual defrost model?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: