kaon
12-04-2014, 12:59 PM
Hi all,
I have a few units of Mitsubishi VRF PUHY-P400YHA that are making these awful noises audible in the conditioned spaces.
Listen here: https://soundcloud.com/dt5433/mitsubishi-city-multi-vrf-air
The system has had this problem from day 1, and it has been running for about 4 months now, the noise seems to happen more often during low load, and it will occur about once every 15 minutes. Mitsubishi techs have called it "balancing noise" and are unwilling / unable to solve it. They just changed some settings / firmware using their laptop to reduce it, but it seems to be about the same.
Any ideas and insight would be greatly appreciated, thank you!
I have a few units of Mitsubishi VRF PUHY-P400YHA that are making these awful noises audible in the conditioned spaces.
Listen here: https://soundcloud.com/dt5433/mitsubishi-city-multi-vrf-air
The system has had this problem from day 1, and it has been running for about 4 months now, the noise seems to happen more often during low load, and it will occur about once every 15 minutes. Mitsubishi techs have called it "balancing noise" and are unwilling / unable to solve it. They just changed some settings / firmware using their laptop to reduce it, but it seems to be about the same.
Any ideas and insight would be greatly appreciated, thank you!