I bought 2 Hitachi 1.5T Quadricools for my house and from day one I have had nothing but problems. The first started with the installation of the airconditioners where the Authorised dealers installed the AC without removing the block of wood under the compressor that is used to keep it stable during transport. After installation during the test run the louvres were found to be not working and had to be replaced. A month after I bought the AC the blower motor stopped working on both the ACs. Both were replaced under warranty but the replacement motors did not come with the necessary plug clip and the service people had to cut off the plug clips from the old motor and attach it with insulation tape to the new one. At this time I told the Area Manager of Hitachi that these were obviously defective pieces and I rather have them exchanged for new pieces. He spoke to his Boss and promised me that if there was any other problem the ACs would be replaced. About six month after this was done the blower motor on one AC stopped working again and on the second AC the blower motor stopped working on speed two. The blower motor on one was again replaced and on the other the service people have not yet come despite repeated calls and reminders. I reminded the Hitachi Area Manager that he had promised me a replacement if any problems occured again but he said he would have to talk to his boss again to get the repacement. Several weeks later the his boss, the regional manager, came to meet me and promised that they would get my AC thoroughly checked up and if he found any issues he would replace it. The date for the check up was to be in the two weeks when Hitachi was having a free check up camp. During that week neither the Area manager nor the Regional Manager called me nor did any person come to my house to check the airconditioner. Recently when I turned on the AC a puff of thick white smoke came out of the front. I immediately turned it off fearing a fire and the next day I tried to contact the Area manager of Hitachi to report the incident. Till now I have not been able to get in touch with him, his phone rings but he does not answer it.
Besides these issues there are several other smaller issues with the AC and service. During one of the various service jobs a technician broke the placstic clips of the grill in front of the filter. The airconditioner is anything but quiet and makes strange rattling sounds. One louvre is not working any more, the service people do not respond in a timely fashion, and many spare parts are not stocked so one has to wait several days for part replacement.
In terms of the electricals in my house, I have put my own earthing pit at a depth of 2.4m isolated from the rest of the building with all the necessary charcoal and salt etc. I also have a neutral pit (which most houses do not have) located over 4m away from my earthing pit so there is issues with my electrical wiring. The electricals are checked every six month by my factory engineer for any problems. The AC gets stabilised power and I have a 5KVA stabliser for the job.
The unsual thing is over the past few years we have bought many Hitachi ACs for my offices and factories so I would consider myself a good customer of Hitachi. If this is the treatement metted out to their good customers with one of their premium products, I would rather not buy an AC from them ever again.