What it is: The system has insufficient return air ducting or grilles for the equipment.
Why it matters
Starved return air strains the blower, reduces comfort, and can cause pressure imbalances.
Why it's common in Bloomington
Many older Bloomington forced-air systems have a single central return that undersupplies the system.
Signs to watch for
- only one central return grille
- doors that slam when the fan runs
- uneven room temperatures
What we check during the inspection
The inspector notes the number and size of return grilles relative to the system.
How it's typically corrected
A contractor adds return air pathways or grilles to balance the system.
Concerned about undersized return air in a home you're buying or selling? Get a free instant quote and we'll evaluate it as part of a full inspection.