Check Defrost System (Evaporator Coils and Thermostat) — Defrost System Check
Part of project
Refrigerator Repair · Step 9 of 10
In this video
To inspect the internal cooling components, open the freezer door. Before proceeding, ensure the refrigerator is unplugged from the wall to prevent injury. Remove any shelves inside the freezer compartment. You will need to remove between four and six screws that secure the thin metal piece covering the evaporator coils. If you encounter a significant amount of snow or ice built up on the back of this panel or on the coils themselves, it indicates a problem with the defrost system. Look for the defrost thermostat and the freezer sensor (also called a defrost sensor) at the top of the evaporator coils. A swollen defrost thermostat unit is a clear sign it's faulty and needs to be replaced. For a more precise test, a technician can check the thermostat's continuity when cooled below 30 degrees Fahrenheit.
FAQs
What is the most critical safety precaution I must take before attempting any refrigerator repair?
Always unplug the refrigerator from its power source before starting any inspection or repair, even for simple tasks like cleaning condenser coils. This prevents serious electrical shock and ensures your safety throughout the process.
Is a multimeter truly necessary for basic refrigerator troubleshooting, or can I skip it to save on tools?
A multimeter is highly recommended and almost essential for accurately diagnosing electrical components like fan motors, thermostats, and start relays. It helps confirm if a part is faulty, preventing unnecessary purchases and ensuring you address the correct problem.
My refrigerator isn't cooling properly. What are some common DIY fixes for this, and what's their difficulty level?
Often, cooling issues are due to dirty condenser coils or a malfunctioning evaporator or condenser fan. Cleaning coils is an intermediate DIY task, crucial for efficiency. Testing and replacing a fan motor, also intermediate, requires careful handling of electrical connections.
The project suggests an estimated time of 6 hours. Does this include diagnosing the problem, or just the hands-on repair work?
The 6-hour estimate typically covers both diagnosing common issues and performing the subsequent repair. Be prepared to allocate sufficient time for initial checks, component testing, and potential trips for parts if replacements are needed.
Check Defrost System (Evaporator Coils and Thermostat) — Defrost System Check
Part of project
Refrigerator Repair · Step 9 of 10
In this video
To inspect the internal cooling components, open the freezer door. Before proceeding, ensure the refrigerator is unplugged from the wall to prevent injury. Remove any shelves inside the freezer compartment. You will need to remove between four and six screws that secure the thin metal piece covering the evaporator coils. If you encounter a significant amount of snow or ice built up on the back of this panel or on the coils themselves, it indicates a problem with the defrost system. Look for the defrost thermostat and the freezer sensor (also called a defrost sensor) at the top of the evaporator coils. A swollen defrost thermostat unit is a clear sign it's faulty and needs to be replaced. For a more precise test, a technician can check the thermostat's continuity when cooled below 30 degrees Fahrenheit.
Frequently Asked Questions
What is the most critical safety precaution I must take before attempting any refrigerator repair?
Always unplug the refrigerator from its power source before starting any inspection or repair, even for simple tasks like cleaning condenser coils. This prevents serious electrical shock and ensures your safety throughout the process.
Is a multimeter truly necessary for basic refrigerator troubleshooting, or can I skip it to save on tools?
A multimeter is highly recommended and almost essential for accurately diagnosing electrical components like fan motors, thermostats, and start relays. It helps confirm if a part is faulty, preventing unnecessary purchases and ensuring you address the correct problem.
My refrigerator isn't cooling properly. What are some common DIY fixes for this, and what's their difficulty level?
Often, cooling issues are due to dirty condenser coils or a malfunctioning evaporator or condenser fan. Cleaning coils is an intermediate DIY task, crucial for efficiency. Testing and replacing a fan motor, also intermediate, requires careful handling of electrical connections.
The project suggests an estimated time of 6 hours. Does this include diagnosing the problem, or just the hands-on repair work?
The 6-hour estimate typically covers both diagnosing common issues and performing the subsequent repair. Be prepared to allocate sufficient time for initial checks, component testing, and potential trips for parts if replacements are needed.