This is normally caused by poor lubrication, insufficient quantity of lubricant, clogging in the lubricant oil’s line, or intermittent lubricant oil supply. Dirt and other impurities in the lubricant will increase its viscosity and cause the shaft to be seized. Copper plating may also result in the seizure of the shaft.

ii)Seizing of piston

This happens because the fit clearance between the piston and cylinder is too small or expansion due to heat.

iii)How do you know that the shaft and piston have been seized

When the refrigerator is switched on, the compressor will not start running. A slight hum sound will be heard and several seconds later, the thermal protective relay will actuate and open the contacts. This process will occur repeatedly, but the compressor will not start.

Compressor will not stop

Sometimes, the compressor will run continuously (for several hours or run without end). If the food placed in the refrigerator is not too much, there may be the following two situations:

i)Control system is probably out of order

ii)The control system works normally but there are problems in the refrigerating system or other parts

a)Temperature is set improperly

i)The temperature control knob is set to the “coldest” position. This position is to be used for fast freezing or continuous running, its temperature for power off is too low, therefore, the compressor will not stop and the temperature in the refrigerator becomes lower and lower.

ii)Inspection method: check the temperature control knob to see whether it is set in the position “coldest”.

b)Thermostat is malfunctioning and makes the compressor running continuously

Analysis of Trouble

When the thermostat does not work normally, it will make the compressor run continuously, and hence very low temperature will be achieved in the refrigerator. The fault is generally because the contacts of the thermostat cannot be released.

Remedy

Dismantle the thermostat and make a through checkup. If it is totally out of functioning, replace with a new one.

c)Evaporation temperature is too high in refrigerating system, resulting in lower refrigerating capacity and hence continuous running of compressor

19

Page 19
Image 19
Haier RF-8888-193 service manual Ii Seizing of piston, Compressor will not stop, Temperature is set improperly

RF-8888-193 specifications

The Haier RF-8888-193 is a sophisticated home appliance designed to meet the demands of modern living. With its sleek design and advanced features, this refrigerator stands out as a reliable choice for families and individuals alike.

One of the key features of the Haier RF-8888-193 is its impressive storage capacity. With multiple compartments, including adjustable shelves and crisp drawers, it offers ample space for groceries, leftovers, and beverages. The layout is thoughtfully designed to maximize storage efficiency, allowing for organized placement of various items, which helps in easy access and reduces waste.

In terms of technology, the RF-8888-193 utilizes advanced cooling systems, ensuring that food remains fresh for longer periods. The Multi Air Flow technology helps maintain consistent temperatures throughout the refrigerator. This technology circulates cold air through multiple vents, ensuring even cooling across all shelves and eliminating hot spots.

Another significant feature of the Haier RF-8888-193 is its energy efficiency. This model is designed with eco-friendly technology that not only helps reduce energy consumption but also minimizes noise, providing a quieter kitchen environment. The inverter compressor adjusts its speed according to temperature requirements, ensuring optimal performance without excessive energy use.

The refrigerator is also equipped with a smart control system, allowing users to set temperatures precisely and monitor conditions through a user-friendly digital display. This feature enhances convenience and helps in managing food preservation effectively. Additionally, the refrigerator offers various cooling modes, allowing for tailored settings depending on the contents within.

Moreover, the Haier RF-8888-193 features a sophisticated water and ice dispenser, providing instant access to chilled water and ice cubes. This addition is particularly useful for entertaining guests or enjoying cold beverages during hot weather.

In conclusion, the Haier RF-8888-193 embodies a blend of style, functionality, and cutting-edge technology. Its spacious design, advanced cooling technologies, energy-efficient operation, and convenient features make it a highly sought-after appliance for any modern kitchen. With this refrigerator, users can enjoy a seamless experience in food storage and preservation, making it an excellent investment for households.