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.
Lochinvar whn 85 fog horning
wjplumbing
Member Posts: 7
I am looking for some help in solving a "fog horning" problem with a lochinvar whn85. This boiler will fog horn from 10 seconds to about a minute when it modulates down to 20%. I have tried to tune out the noise with venturi and gas valve adjustments using a combustion analyzer with no results. The boiler rep came down and also tried to tune out the noise with no results. The install is done according to the manufactures instructions and the vent and air intake are within limits. The only way to make it stop is to remove the air intake at the rubber coupling. I don't want to use room air as it is a direct vent setup. Any help or info would be greatly appreciated. Thanks, Jim.
0
Categories
- All Categories
- 86.3K THE MAIN WALL
- 3.1K A-C, Heat Pumps & Refrigeration
- 53 Biomass
- 422 Carbon Monoxide Awareness
- 90 Chimneys & Flues
- 2K Domestic Hot Water
- 5.4K Gas Heating
- 100 Geothermal
- 156 Indoor-Air Quality
- 3.4K Oil Heating
- 64 Pipe Deterioration
- 917 Plumbing
- 6.1K Radiant Heating
- 381 Solar
- 14.9K Strictly Steam
- 3.3K Thermostats and Controls
- 54 Water Quality
- 41 Industry Classes
- 47 Job Opportunities
- 17 Recall Announcements