Attic HVAC Struggling to Keep Up in the Heat in Wake Forest
Wake Forest · August 2026 · Steve, Mario, Chris, Ryan, Jeorell, Manny & Bernard · From our service records

What the customer reported
A Wake Forest homeowner reported that the HVAC system was having difficulty maintaining the desired indoor temperature during periods of elevated outdoor temperatures, and requested a correct drain pan for the attic furnace.
What we found and did
Bernard found that the blower speed settings for both heating and cooling were configured lower than optimal for the 3-ton equipment serving the three-zone system. He adjusted the blower speed taps to increase airflow after verifying CFM at the registers on each floor, confirming every zone damper fully opened and closed, checking R-410A pressures (within the expected range), and scoping the blower assembly, heat exchanger, and evaporator coil with no significant debris found. On a separate visit, Mario installed a new 3.5"x16" drain pan with a secondary float safety switch under the attic furnace and recommended replacing the 12" bypass damper assembly, which is completely non-operational, with a separate estimate provided.
Result
After the adjustments, the system was operating properly with approximately a 20°F temperature differential across each zone.