I have brought a window AC 1.5 ton of Hitachi in 2004. The AC was not performing well and its cooling was very less. I complained for that at its service centre to M/s Garg Sales Patiala. But he didn, t listen to my complaints. The very next year gas of my machine got leaked and on our request and seeing the genuinety in our complaits the company filled gas free of cost. But this keeps on hapning every year for last 4 consective years gas has been filled in the machine by company. but the cause of leakage of gas was never detected for last four times at Hitachi Service Centre owned by M/s Garg Sales Patiala, they were unable to find the actual cause of gas leakage from machine every year and the same story happened this time also. The service centre of your company which is presently with Shri Hans Air Conditioners, Patiala, had taken my machine to their centre after my complaint, then they checked for the Oil leakage and gas leakage in our presence. But to our surprise this time also there was no Oil leakage was found on the cooling coils or else where in the machine. Then the company mechanic filled Nitrogen gas in the cooling coils after dismantling the unit, about 350 pounds of pressure was filled in the pipes and he heated the coils with gas welding on the pretext of burning the carbon present on the coils (Remember the Nitrogon gas was filled during this duration). Then he dipped the cooling unit in water tub. For your surprises no leakage was found in it. Then this man, to put off the complaint from his soldiers and to hide his inability to find the leakage cause he again heated the coils with gas welding and made the coils red hot from the junction point where the capillary pressure is exerted on the gas (known as Panja) where five six pipes come out. Immediately the pipes got leaked and gas comes out of the coils. The mechanic said to us that this was the leakage point. Even we told him immediately that you made the coils red hot and have created the leakage by your self. Also we have come to know that one can not heat the coils after filling the gas in it. Moreover our this version of manufaturing defect was also agreed by the service engineer who had not mentioned any gas leakage point in the Field Call Report given to me, it only mentioned that gas was filled free of cost by Shri Hans Air Conditions Patiala.
Sir this all shows that the machine is definitely have a manufacturing defect and which is untraceable since last five years and every year the gas is filled by company free of cost, even the company has replaced the compressor last year, but the problem still persists. Every year we have to spend 2-3 months in summers without AC and then it got repaired. This time also the gas is filled but will your company own the guarantee for next year that the gas will not be leaked again. Your local service centre has said that we give only 15 days guarantee for gas leakage, what the hell is this, we are already requesting to them that past experiences shows that machine make gas leaked after the gap of a year not immediately and from the above details you can definitely ascertain now that the actual cause of leakage was never been found and the machine has a manufacturing defect. It is therefore requested that my complaints made to company through M/s Garg Sales, Patiala may be redressed and the defective part of the AC may be got replaced at company’s cost, so that I may able to enjoy the benefit of my AC atleast this year in time otherwise every year this correspondence takes atleast 2-3 months and then the gas got filled and after that the machine starts working.
Also I request you to kindly check if the company service center is not able to find out the manufacturing defect in the machine, the A.C may kindly be replaced and help me to come out of this problem.
Please look into matte
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