In Jan 2017, I engaged Gain City to install a new set of Mitsubishi split air-conditioners for my living room and two bedrooms. In addition, I have an existing air-con maintenance contract with Tech-V Air Cool Engineering to service the air-cons on a quarterly frequency.
I have been using Tech-V for a few years already and because each maintenance team has different level of skills and work attitude, my overall satisfaction have ranged from highly satisfied to highly dissatisfied.
On 17 March 2017, a team came to service the air-con. About a month later, I wanted to remove the filtering nets of the indoor units for routine cleaning and was shocked to see that some parts of the evaporator coils were dented. That happened in all the three indoor units.
And again after another team came to service the air-cons on 6 July 2017, there were new dents on other parts of the evaporator coils. Now I understand why all the evaporator coils were badly dented in my old air-cons which were serviced by Tech-V.
On 25 Oct 2017, when I feedback to the technicians who came over for routine servicing, one of them said damage caused by vacuum cleaning is "inevitable", while another said that "vacuum cleaner should not be used." However, I find their contradictory explanations lame and unacceptable. When I ask them what if those aircons were their own, would they accept the explanation? They were silent.
When I provide the feedback to the Customer Service, the general attitude was defensiveness, not empathy. I requested to speak with the boss or GM, but they say they will escalate it to their management. To-date I am still waiting for a response.
I will not renew the contract with Tech-V again when it expires if I am not assured that they will not be causing further damage to the aircons.
It should be obvious why earlier this year we gave the over $5,000 project of new aircon installation with new piping to Gain City but not to Tech-V.
By the way, just by doing some online research, it can easily be seen that Tech-V has created dubious reviews (e.g. HWZ, Google, Yelp) for the company so as to counter the real negative ones that they receive.