Compressor Contactor

Apr 01
2005

Combination Of Knowledge And A Small Refrigerator Repair Troubleshooting Methods

HC HVAC & R Network 1, check Power supply : There is no power distribution box, or screen is not displayed. Please check whether the failure of cold storage of the private gate.

2, cold storage refrigeration or cooling effect is not bad. Check Refrigerator Condenser Whether dirty. Check database Evaporator Whether the product too thick frost. Inspection Refrigerants Whether the leakage (painted with soap and water pipe joints, air bubbles generated instructions refrigerant leakage). And invites professionals to add refrigerant leaks and processed. Check the refrigerator door and remove the seal is intact. Check the refrigerator freezer is working. Check the refrigerator's computer controller parameters are set correctly and re-adjust. Check whether the cold storage controller failure and replacement. Check whether the bank piled with sufficient clearance items and clear the.

3, the machine running an abnormal noise, please stop check whether it is caused by vibration or mechanical failure. Abnormal noise distribution box, which is the sound of AC contactor is due to contact with moving parts of the local device is not flexible, please click the power was returned to the absorption of iron contactors can eliminate the noise.

4, frequent or prolonged starts refrigerator not start or warm boot does not stop or library not to stop. A, check whether there is dirt on the condenser, heat causes poor Condenser pressure is too high, in order to protect Compressor , Under the pressure controller to stop operating the machine, wait until the heat well, click on the black pressure controller reset button, the machine will automatically resume operation. B, the controller parameter setting is incorrect, you can reset. C, cooling is not good, please refer to failure 2. D, temperature control failure. E, electrical damage.

5, closing after the cold storage distribution box does not respond, but the normal three-phase power. Please check the zero line, is there 220V voltage. Refrigerator parts (all Valve Cases, the controller) are configured, the user need not adjust the parts.

6, bank lighting does not shine. Please check the switch is defective light bulbs for damage. Check the power to cut off installed lamp shade should pay attention to water.

7, when Environment Temperature is too high, cooler running for some time, library and refrigerator temperature settings in advance until they stop. This is due to lower temperatures lead to cooler condensation pressure is too high, to protect the compressor, the pressure controller to stop operating under the machine, wait until the heat well, click the black press reset button on the controller, the machine that is automatically resume operation. And check whether the cooling water condenser good. Pressure controller can not be adjusted to set the value, or the role of pressure controller serve to protect the refrigerator.

8, cold storage doors are not tightly closed, please adjust the garage door on the hinges and locks and the spacing between the storage body.

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