Keep your eyes open! A factory in Shenzhen paid three times the usual cost to repair York screw compressors!

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In the first two months, a customer called to ask, \"Can you repair York screw compressors?\" Upon hearing about the compressor unit failure described by the other party, Gong Lenghui said that he could fix it! After the initial discussion between the two parties regarding the repair cost, the other party agreed and asked when the workers would arrive; Gonglenghui replied that they would arrive the day after afternoon. The following afternoon, Gonglenghui arrived at the customer’s site on time. The customer was using York YS-type screw compressors, and upon on-site inspection, it was found that major components such as the compressor’s screw rotor, bearings, and shaft seals had the following issues: 1. Severe abnormal noises and vibrations in the compressor – severe corrosion and wear of the bearings; 2. Severe abnormal noises and looseness in the screw rotor – corrosion and wear of the rotor; 3. Abnormal noises from the shaft seals – damage to the friction surfaces. These were the main faults of the screw compressors. Gonglenghui determined that the rotor and shaft seals required thorough maintenance, while the severely corroded and worn bearings needed to be replaced with new ones. After providing a quote to the customer on site, the customer said they needed some time to consider it. In the evening, the customer called and said they would not proceed with the repairs for now. As a result, Gonglenghui’s repair mission had to end without success. It was thought that the matter would be resolved there, but a month later the customer called again, stating that they accepted the cost of the previous repair and asking if someone could come to fix the issue as soon as possible. Understanding well the impact of screw compressor unit failures on customers, Gonglenghui promptly recalled the engineers who had just returned from vacation and sent them to the site urgently. The engineers on site found that the customer’s unit’s rotor was worn out, the shaft seals were leaking, and the bearings were not original parts. This failure was clearly different from the previous one. When asked about the reason, the customer explained that after receiving the quote on site, they had compared prices with other companies; since one of them offered a lower repair cost, they handed over the damaged components to that company for repair. Soon afterward, problems such as rotor wear, shaft seal leaks, and bearing wear occurred, rendering the unit inoperable. In the end, the customer turned to Gonglenghui to resolve these issues. An engineer from Gonglenghui, who has been maintaining refrigeration units for over a decade, expressed understanding after hearing the customer’s explanation, but did not agree with the customer’s actions. It is fine to compare different options, but one must be careful. People who are not familiar with the subject often make mistakes due to low prices, short service periods, or fast delivery of spare parts, and thus fail to make proper judgments. Gonglenghui understands the customer’s desire for the unit to start operating as soon as possible, but making impulsive decisions without proper consideration can result in repair costs that are many times higher than usual, as well as significant losses caused by the unit’s downtime.