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HomeRepair HelpCrosley Microwave RepairCrosley Microwave is tripping circuit breaker Repair
Crosley Microwave is tripping circuit breaker
If your Crosley microwave is tripping the circuit breaker, the most likely cause is a failed door switch. Most microwaves use three or four interlock switches, including the primary door switch, secondary door switch, and monitor switch, which must close in sequence when the door shuts. A defective switch can short the circuit, blow the line fuse, or make the microwave trip the breaker when the door opens or cooking starts. If the door switches test good, a shorted high-voltage capacitor is the next likely cause. Less common causes include a shorted magnetron or high-voltage transformer, especially if the transformer is arcing or the microwave smells burnt. This type of troubleshooting requires opening the outer cabinet. The high-voltage capacitor can store a lethal charge even after the microwave is unplugged and must be properly discharged before any interior work. Repairs involving the door switch, high-voltage capacitor, magnetron, or high-voltage transformer may require a qualified technician if you are not familiar with capacitor discharge procedures. Enter your model number to find the exact replacement part for your Crosley microwave.
01 - Crosley Microwave Door Switch
Most microwaves have three or four door switches. When the microwave door closes, the door switches actuate in sequence to ensure that the door is closed properly. If any of the door switches fail, the microwave line fuse can blow, or the circuit breaker may trip. To determine if any of the door switches are defective, use a multimeter to test each of the switches for continuity. If any of the door switches lack continuity, replace the defective switch. (Caution: The microwave oven can store thousands of volts of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. Due to the potenti...
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02 - Crosley Microwave High Voltage Capacitor
A microwave that is tripping a circuit breaker can be caused by a shorted high voltage capacitor. You can determine that a capacitor has shorted by contacting one multimeter lead to one of the capacitor's terminals and the other lead to the casing. If meter display indicates that electrical continuity is present between any of the capacitor terminals and the casing, or the terminals show continuous continuity between them, the component has shorted and will need to be replaced.
Uncommon But Possible
03 - Crosley Microwave Magnetron
A microwave that is tripping a circuit breaker can be caused by a shorted magnetron. You can determine that a magnetron has shorted by contacting one multimeter lead to one of the magnetron's terminals and the other lead to the casing. If meter display indicates that electrical continuity is present between any of the terminals and the casing, the magnetron has shorted and will need to be replaced.
Uncommon But Possible
04 - Crosley Microwave High Voltage Transformer
A microwave that is tripping a circuit breaker can be caused by a shorted high voltage transformer. When a high voltage transformer shorts out, it will usually arc and smell burnt.
Uncommon But Possible
Frequently Asked Questions
Why is my Crosley microwave tripping the circuit breaker?
Could a Crosley microwave door switch cause the breaker to trip?
How do I test a Crosley microwave high-voltage capacitor or magnetron?
What should I do if my Crosley microwave trips the breaker and smells burnt?
How can I find the correct Crosley microwave door switch or other replacement part?
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