Danfoss Compressor SM090A3RU

07/14/2020

What's wrong with the freezer not cooling

1. Test the power cord with an electric pen. The broken power cord of the freezer is also a cause of non-refrigeration. For this situation, we need to check whether it is a power problem. The general approach is to open the door and observe whether the lighting lamp in the box Light up. Look for signs of damage to the wires, such as being bitten by a mouse.

07/05/2020

Hitachi 6HP Inverter Compressor-Compressor

Hitachi 6HP Inverter Compressor-Compressor Why is frost formed between the electronic expansion valve and the compressor? A customer asked: The compressor is suddenly not cooling, and the electronic expansion valve is frosted to the compressor. Is there any relationship between the two before?

07/24/2025

The principle of auxiliary equipment of air conditioning and refrigeration system

The principle of auxiliary equipment of air conditioning and refrigeration system (1) In air conditioning and refrigeration, in order to enable the reliable and stable operation of the refrigeration system and improve the economics of operation

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

10/16/2020

How to distinguish true and false Copeland compressors

Every year in the refrigeration peak season, there are always some non-original Copeland compressors from OEM or refurbished companies appearing on the market. Due to the current many models of Copeland compressors, the market is relatively chaotic, which will affect purchases.

08/20/2020

Common auxiliary accessories and refrigeration methods for industrial chillers

Commonly used auxiliary accessories for chillers include water flow switch, pressure controller, pressure difference controller, temperature controller and solenoid valve, as well as a brief introduction of three cooling methods,

10/21/2023

Why Does My AC Keep Freezing Up at Night?

During the hot summer months, a well-functioning air conditioning (AC) system is crucial to maintaining a comfortable indoor environment. However, if your AC keeps freezing up at night, it can be a frustrating and perplexing problem.

02/27/2024

Types of RV Refrigerators and Their Working Principles

Recreational Vehicles (RVs) have become a popular means of travel and adventure, allowing individuals to explore the great outdoors while enjoying the comforts of home.

01/15/2022

Case Studies of How to Replace a Compressor in Refrigerator (Part Two)

As we have mentioned in the first part, it’s the refrigeration capacity, the clean piping system, and the drying filter that deserve our attention.

12/10/2024

How to detect the tightness of the refrigeration equipment system

Keep the refrigeration equipment under a proper vacuum for a certain period of time, and observe whether the air infiltrates the system from the reading of the vacuum pressure gauge to check the sealing performance of the system.