- 60 -
Problems | Causes | Checks | Measures | Remarks |
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No defrosting | Melting fuse blows out. | - Check melting fuse with tester. - | Faullty parts: parts replacement. |
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| 1) Lead wire is cut. | If 0Ω: OK. | - Check wire color when maeasuring |
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| 2) Bad soldering. | If ∞Ω: wire is cut. | resistance with a tester. |
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| Ice in the Sucking duct. | 1. Check the inner duct with mirror. | 1) Turn power off. |
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| 1) Icing by foreign materials in the |
| 2) Raise the front side(door side), |
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| duct. |
| support the front side legs, and let |
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| 2) Icing by cool air inflow through |
| the ice melt naturally. (If power is |
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| the gap of heater plate. |
| on, melt the frost by forced |
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| 3) Icing by the gap of heater plate. |
| defrosting.) |
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| 2. Check by inserting soft copper | 3) Reassemble the heater plate. |
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| wire into the duct (soft and thin |
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| copper not to impair heating wire). |
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| Bad cool air inflow and discharge, | 1. Turn on power, open or close the | 1) Check the faulty connector of |
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| and bad defrosting due to faulty | door, check that motor fan | housing and reassemble wrongly |
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| contact and insertion (bad connector | operates (If it operates, motor fan | assembled parts. |
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| insertion into housing of heater, | is OK). | 2) If the parts are very damaged, |
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| melting, fuse and motor fan). | 2. Disconnect parts in the refrigerator | remove the parts and replace it |
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| compartment, check the connection | with a new one. |
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| around the housing visually, |
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| defrost, and confirm heat generation |
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| on the heater. Do not put hands on |
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| the sheath heater. |
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| 3. Check the parts which have faults |
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| described in 1, 2 (mechanical |
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| model: disconnect thermostat |
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| from the assembly). |
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TROUBLE DIAGNOSIS
