An attic fan shakes or rattles when it is not getting enough air. To solve this problem, home service pros recommend installing a window at the attic, so that you can open it and allow natural air flow. Please note that the window should be installed at least 30 feet away from the fan.
Reliance Red-Tagged my furnace but refused to show me the actual measurement of Carbon Monoxide in the outside exhaust. This is a tactic they use to force an unnecessary purchase of a new furnace.
When they red-tag or tell you that...
Amazing service .was on time and found the problem with in an hour . Very professional.
While the previous company came 4 times and couldn't fix the issue