Refrigerator Troubleshooting Diagram

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Category: Refrigerator Troubleshooting

Refrigerator Troubleshooting

SYMPTOMS OF AN OVERCHARGED SYSTEM

Posted on January 21, 2022January 21, 2022 by sam

There are several symptoms that indicate the presence of an excessive amount of refrigerant in the system. 1. Long running time of the unit. When…

Refrigerator Troubleshooting

CLEANING THE CONDENSER

Posted on January 21, 2022 by sam

There are several cleaning solutions in the market suitable for condensers. They are primarily alkaline or acid, about the same price and about equally effective.…

Refrigerator Troubleshooting

CAUSES OF HIGH HEAD PRESSURE

Posted on January 21, 2022 by sam

Different types of refrigerant produce different head pressures. In air-cooled condensers, a normal head pressure should correspond to a temperature of about 30°F higher than…

Refrigerator Troubleshooting

A QUICK TEST FOR A RESTRICTION OR LEAK IN RESIDENTIAL UNITS

Posted on January 21, 2022 by sam

When a residential unit runs warmer than normal (or does not cool), the problem can be due to a leak or a restriction in the…

Refrigerator Troubleshooting

A QUICK CHECK FOR A RESTRICTED CAPILLARY TUBE

Posted on January 21, 2022 by sam

1. Turn off the system and listen where the capillary tube connects to the evaporator. If you don’t hear a hissing sound, there may be…

Refrigerator Troubleshooting

SIGNS OF RESTRICTION OF REFRIGERANT FLOW

Posted on January 21, 2022 by sam

A restriction of refrigerant flow is caused by the formation of ice from moist air in the system. Air can penetrate into the system from…

Refrigerator Troubleshooting

SIGNS OF LOSS OF REFRIGERANT

Posted on January 21, 2022 by sam

1. Low-side pressure reads lower than normal. 2. High-side pressure reads lower than normal. 3. Low amperage reading. Read the amperage the compressor draws. Do…

Refrigerator Troubleshooting

SIGNS OF A DIRTY CONDENSER

Posted on January 21, 2022 by sam

Dirty condensers cause (a) higher evaporator temperatures and consequently higher temperatures in the cabinet, (b) higher operating temperatures in compressors and condensers, (c) longer running…

Refrigerator Troubleshooting

PROCEDURE FOR REPLACING A BURNT OUT COMPRESSOR

Posted on January 21, 2022 by sam

CAUTION: Do not touch the oil from a burnt out compressor as the acid will cause a burn. Always wear rubber gloves. Also, safety goggles…

Refrigerator Troubleshooting

COMPRESSOR BURNOUT

Posted on January 19, 2022 by sam

Compressors often burn out by overheating caused by above-normal head pressures. Laboratory tests have proven that presence of air, dirt, and moisture in the sealed…

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