sometime?

Answer: After half a year or one year’s use, clearance will increase because of wear of inner components, and compressor’s noise will increase accordingly. Then it will get stable till the whole life of freezer.

12.6.7Why freezer’s noise increases after stop use for sometime?

Answer: After long time stop of freezer, the crankshaft of compressor may be blocked by dirt brought in by lubrication oil or blocked by freezing lubrication oil because of low temperature. For this reason, compressor cannot be started, or noise will increase after starting, and the wear of

crankshaft will increase too. It is better that freezer doesn’t stop use. Sometimes newly bought freezer also has this characteristic. After a period operation, it will get normal.

12.6.8 How to reduce freezer’s noise?

At present, all kinds of freezers have the problem of noise. Scientists have been seeking a method to solve it but to little effect. The final solution depends on new improvements and developments in technology.

MAINTENANCE SERVICE AND TROUBLE SHOOTING Maintenance Service and Trouble Shooting

12.6.9 why freezer noise changes greater at night?

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Haier BD-478A Sometime?, Why freezer’s noise increases after stop use for sometime?, How to reduce freezer’s noise?