Five solutions to the u4 failure code for the great gold air-conditioner are explained by the cause of the u4 failure:
Causes of malfunction: poor contact or error with the outdoor control line by indoor aircraft。
Solutions:
1. It is possible to turn off all indoor and outdoor power and then to turn it on and try to restart the air conditioning。
2. To check whether indoor aircraft - outdoor aircraft, outdoor aircraft - transmission lines were normal, all were stabilized。
3. It should also be noted that indoor and outdoor aircraft within the same system must be powered at the same time, otherwise u4 failure will be reported。
4. If the reconnected power test is also reported to u4, it may be that the plate or signal line is broken and requires repair。
5. Contacts with gold personnel for home repairs
Great gold air conditioning (service line) is available 24 hours a day
The national hotline for financial air conditioning, which is available 24 hours a day, 24 hours a day, is available to you。
Provide full maintenance assurance to users for 365 days. At all times, the maintenance of large-scale gold air conditioners insists on doing their own good, always providing friendly warmth services to users! The company has built up an intensive network of services, using nationally harmonized service standards, to provide thoughtful services to customers。
Professional technicians, professional maintenance, non-refrigeration, poor performance, power failure, e1, e2, remote failure, fluorine, maintenance, etc。
Distinguished users, whatever your needs, just call our 24-hour unified maintenance hotline: we'll do the rest。
Our client services representatives will give you professional advice and answers!
Two, we'll schedule the service for the network at your scheduled hours!
3. While providing quality services, you will be provided with a detailed description of how the product works and how it works!
After the service, you will be informed of the common sense in the use of the product, which will guide your use!
Your service information will be fed back to client services in a synchronized fashion, and we will arrange regular visits from the client service!
As the standard of living of our people grows, air conditioners become essential appliances in people's daily lives, and as more users increase their maintenance failures, the daily lives of users are greatly inconvenienced!
Founded in 2009, since its inception, the gaac service has been closely focused on "specialized" service standards, promoting business growth with a "my heart, you can rest assured" service spirit, winning markets and rewarding societies with a "good faith" service philosophy, and enabling businesses to develop steadily over the years in an exceptionally competitive domestic electricity market, with good economic and social benefits。
Great gold air conditioning service maintenance commitments:
(1) to ensure the quality of maintenance in strict compliance with maintenance* and operational protocols。
(2) strictly customs the quality of the parts and eliminate the use of fraudulent and obsolete parts。
(3) the helpline is staffed 24 hours a day and responds within 10 minutes. The maintenance workshop and reception festivals are held without rest and the users are assured of their presence. A maintenance system is in place and recovery teams are established in a timely manner and ready to reach the site。
(4) strictly enforce the rates of the mvb and my company in respect of fees, without overestimating the faults and eliminating excessive charges。
(5) remote failure diagnosis, technical failure resolution, rapid processing of mail accessories by field customers. Our off-site clients will do their own repairs, and we will hasten to debug your machine and complete the maintenance on that day。
(6) the machinery that i have maintained is subject to warranty, and during the period of warranty, i am responsible for re-engineering if there are problems with the quality of maintenance or replacement parts。
Service target: 0 deficiencies, client satisfaction
The factory maintenance office reports on the reception services*: telephone calls, door check, actual offers, maintenance failure, warranty
I don't want much profit, i want better services, i'll serve you all day!
