Bathroom exhaust fans need to vent to the outside, as moisture levels could affect other areas of the house. Experts recommend leaving the fan on in the bathroom after a shower for at least 20 minutes to effectively reduce moisture and condensation levels at home.
Mark checked on the electrical wiring relating to the furnaces to insure that the furnaces are functioning efficiently with respect to one another.
Minor adjustments were made and both furnaces are functioning properly.
Kale suggested that the wiring should be examined by...