Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.
Busy signal
Options

gstewart04
Member Posts: 1
I have a Mitsubishi hyper mini split.
When the unit is in heat mode the wall unit i
s making a busy signal sound. This noise goes
away in cool mode. The sound is loud enough
to keep you awake at night, I have turned up
the air cleaner to drown out the noise.
Anyone ever run into this.
When the unit is in heat mode the wall unit i
s making a busy signal sound. This noise goes
away in cool mode. The sound is loud enough
to keep you awake at night, I have turned up
the air cleaner to drown out the noise.
Anyone ever run into this.
0
Comments
-
Some have a minimum lineset length and can make noise if it’s too short. I think liquid velocity becomes too high.0
Categories
- All Categories
- 87K THE MAIN WALL
- 3.2K A-C, Heat Pumps & Refrigeration
- 57 Biomass
- 425 Carbon Monoxide Awareness
- 112 Chimneys & Flues
- 2.1K Domestic Hot Water
- 5.7K Gas Heating
- 106 Geothermal
- 160 Indoor-Air Quality
- 3.6K Oil Heating
- 70 Pipe Deterioration
- 979 Plumbing
- 6.3K Radiant Heating
- 387 Solar
- 15.4K Strictly Steam
- 3.4K Thermostats and Controls
- 54 Water Quality
- 44 Industry Classes
- 48 Job Opportunities
- 18 Recall Announcements