Haier HVW18 Service, Руководство по обслуживанию

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2. To discover the common trouble in Semi-conductor Wine Cooler
Causes for troubles occurring in this type of Wine Cooler are closely related to the quality of
components and workmanship in assembling by manufacturers and whether the unit are properly
used and maintained. The parameters generally used to express the working conditions of a wine
cooler include the temperature inside the unit, electric power consumption, noise level, and other
functional indexes. If any one of these parameters is beyond its permissible range, this indicates
that there is a fault or trouble in the unit.
In troubleshooting, the first thing you must do is to determine where the trouble comes from --- the
control system or the cooling system. There is general no trouble indicating instrument mounted
on the domestic wine cooler, locations and natures of troubles should be determined according to
their respective features, therefore, experience in servicing is very important to troubleshooting.
Service technicians with rich experience can correctly locate them and take reasonable remedy
measures based on their comprehensive analysis of trouble characteristics as well as operating
conditions of the unit.
Checking
Equipment used for checking and maintenance
1/ Set of Phillips head, flat head, cross head screwdrivers
2/ Pliers
3/ Electronic Multi meter
4/ Electrical soldering iron and tin solder
5/ Wire strippers
6/ Scissors
7/ Clamping tools for closed-end wire connector
A. Visual checking
It is the most simplest way to check the unit.
Any of the following points found can tell the unit is in trouble.
- The fan inside the cavity (internal fan) is not running during the operation;
- The fan on the rear housing (external fan) is not running during the operation;
-
The wire is loosed from it original position / connection;
- The gasket along the door is damaged or air gap can be seen along the edge of the cooler
body.
- Any part on the unit is deformed.