10-5 Diagnosing the main components
| Components | Diagnosing methods and criteria |
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| Use the tester to measure the |
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| Mechanical |
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| Compressor | Measuring point | Normal |
| Abnormal |
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| resistance. |
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| compartment |
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| Primary iwre | Approx 10~500㏀ | 0Ω and |
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| - Bring the component to cool down |
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| completely before measuring. | Secondary wire | 3~20㏀ |
| ∞Ω |
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| Use the tester to measure the |
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| Mechanical |
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| P.T.C Relay | resistance. | Normal |
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| Abnormal |
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| - Bring the component to cool down |
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| compartment |
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| Approx ∞Ω~㏀ |
| 0Ω and ∞Ω |
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| completely before measuring. |
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| Use the tester to measure |
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| Electrical |
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| Condenser | the resistance. | Normal |
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| Abnormal |
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| Approx 10Ω ~ 80㏀ |
| 0Ω and ∞Ω |
| equipment box |
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| Use the tester to measure |
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| the resistance. | Normal |
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| Abnormal |
| Mechanical |
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| - Bring the component to cool down |
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| compartment |
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| Overload relay | Approx 200㏀ |
| 0Ω and ∞Ω |
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| completely before measuring. |
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| Use the tester to measure |
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| Mechanical |
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| the resistance. |
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| compartment |
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| Normal |
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| Abnormal |
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| - Bring the component to cool down |
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| Freezing |
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| Approx 100Ω~20㏀ |
| 0Ω and ∞Ω |
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| completely before measuring. |
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| Use the tester to measure |
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| Rotating blade | the resistance. | Normal |
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| Abnormal |
| Refigerating |
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| - Bring the component to cool down | Approx 10Ω~20㏀ |
| 0Ω and ∞Ω |
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| compartment |
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| completely before measuring. |
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| Use the tester to measure |
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| Measuring point | Normal |
| Abnormal |
| Between the |
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| the resistance. |
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| Door switch | A B contact point |
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| 0Ω and |
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| upper and the |
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| When the switch is on | Approx 200MΩ | ∞Ω |
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| lower doors |
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| by the contact |
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| Use the tester to measure | Measuring point | Normal |
| Abnormal |
| Electrical |
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| the resistance. | Between terminals | Approx 200㏀ | 0Ω and |
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| Defrost timer |
| equipment box |
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| Temperature fuse | Approx 10Ω~300㏀ | ∞Ω |
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| terminal |
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| Use the tester to measure |
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| Lower EVAP |
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| Normal |
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| Abnormal |
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| Defrost heater | the resistance. |
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| Approx 3㏀~6㏀ |
| ∞MΩ~ ∞Ω |
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| - Bring the component to cool down |
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| completely before measuring. |
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| Use the tester to measure |
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| Bimetal | Measuring point | Normal |
| Abnormal |
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| the resistance. | Bimetal terminal |
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| EVAP |
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| Temperature fuse |
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| Temperature fuse | Approx 200MΩ | ∞Ω~ ∞Ω |
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| terminal |
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| －15－ |