Upright Freezer: Sheet of ice at the bottom

In an upright freezer with automatic defrost, a defrost drain tube clogged with ice or gunk can cause water to puddle at the bottom of the freezer, where it forms a sheet of ice. Clear the drain tube to fix this problem.

A sheet of ice in the bottom of the freezer can be caused by a temporary power outage in a manually defrosting freezer. Water will puddle at the bottom of the freezer when ice and frost melts inside the freezer. A sheet of ice at the bottom of the freezer will form when power is restored and the puddle freezes. Defrost the freezer to get rid of the sheet of ice in the bottom of the freezer.

upright freezer

These repairs may help solve your upright freezer problem

Clean the freezer defrost drain tube

Clean the freezer defrost drain tube

As part of the defrost cycle, the defrost drain tube transfers water that condenses in the evaporator drip tray to the drip pan near the compressor, where the water evaporates. Because it's directly under the evaporator, the defrost drain tube can freeze or clog. Pour hot water down the defrost drain tube to clear it.

Symptoms common to all freestanding freezers

Choose a symptom to see related freezer repairs.

Main causes: lack of power, bad compressor, refrigerant leak, bad thermistor, defrost system failure, dirty condenser coils, control failure
Main causes: leaky door or lid gasket, broken defrost heater, bad defrost bi-metal thermostat, defrost control failure, faulty compressor
Main causes: dirty condenser coils, condenser fan failure, dirty bottom front grill, leaky door or lid gasket
Main causes: burned out light bulb, bad door or lid switch, faulty LED light board, wiring failure, control system failure
Main causes: damaged door or lid gasket, cracked cabinet liner, bad defrost bi-metal thermostat, broken defrost heater, bad defrost timer
Main causes: lack of power, control system failure, broken compressor start relay, locked up compressor, compressor motor failure
Main causes: compressor failure, no refrigerant, faulty sensor, control failure, broken defrost heater, bad defrost bi-metal thermostat
Main causes: excessive frost, bad defrost heater, bad defrost bi-metal, control system failure, low refrigerant charge, compressor problems

Repair guides for upright freezers

February 20, 2015
By Lyle Weischwill
How to replace a freezer thermistor

When the thermistor can’t sense the freezer temperature, the freezer is colder or warmer than the set temperature. Follow these step-by-step instructions to replace a defective freezer thermistor.

Repair difficulty
Time required
 45 minutes or less
February 20, 2015
By Lyle Weischwill
How to replace a freezer defrost heater

If frost builds up on the freezer evaporator because the defrost heater isn’t working, follow these step-by-step instructions to replace the freezer defrost heater.

Repair difficulty
Time required
 45 minutes or less
February 20, 2015
By Lyle Weischwill
How to replace a freezer evaporator fan

Air won’t circulate to cool the freezer properly when the evaporator fan fails. Follow these step-by-step instructions to replace a defective evaporator fan.

Repair difficulty
Time required
 45 minutes or less

Articles and videos common to all freestanding freezers

Use the advice and tips in these articles and videos to get the most out of your freezer.

October 26, 2016

How to repair broken or damaged wires video

By Sears PartsDirect staff

Learn how to repair broken, frayed or damaged wires in your appliances.

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How to use a multimeter to test electrical parts video

By Sears PartsDirect staff

Learn how to use a multimeter to check for wiring problems in an appliance that's not working

November 1, 2014

Freezer common questions

By Sears PartsDirect staff

Benefit from other people's experience by checking on these frequently asked questions about freezers.