【 Weak current College 】 refrigerator motor failure of judgment 】

Now some refrigerator factory produced products, in circuit design, many unreasonable to give consumers the expensive maintenance costs. Here, expert for everyone to brief refrigerator motor failure of judgment and examine the ways in which you can unlock a lot of trouble for you. Motor common fault 1.　　motor winding wire or wire disconnected, motor lead and compressor shell falls within the three terminals and motor circuit breakers. Maintenance of this failure, when the normal power supply voltage, the refrigerator when you power up the compressor is not running, start the winding available multimeter measurement and run winding, its resistance value is infinite, the motor circuit breakers.　　2. the motor windings and motor. When the motor can barely started running, but noise significantly more than the original, larger than normal running current 1 x above, run with multimeter than normal winding resistance.　　3. motor start winding short circuit. You can manually start the motor, but after using start relay could not be started. 4. motor start winding and running a winding.　　When using a multimeter check, the starting and running a winding resistance than normal significantly reduced. Phenomenon as the power supply voltage, start relay control circuits are functioning, such as, the start continuous overload relay, thermal protection contact jumped, and a compressor to normal. 5. motor Terminal enclosure colliding with a public leader. Then motor could be up and running, but in the refrigerator without grounding good leakage everywhere.　　When the power plug can be inserted at the back.　　In order to prevent electric shock, power outlet into three eye socket. Motor failure reasons 1.　　motors often overvoltage or undervoltage started and run.　　2. due to the fault of the refrigeration system, which makes motor running non-stop for a long time, the temperature is too high, the ageing and the burning of enamelled wire. 3. poor crankshaft oil absorption, causing motor axle, card cylinder for a long time and has not been found, the motor windings burned.　　4. the defrosting is not timely, the workload of the refrigerator, premature damage caused by motor.　　5. a power outage, a will call, resulting in the frequent launch of refrigerator, affecting motor life. 6. filling of methanol in the repair, resulting in premature damage to the motor. 7. the motor itself quality does not cross the border, winding wire is not used by fluoride-resistant high-strength wire