One of the most common summer calls we get in Taylors Hill is this:
The cooler is running… but it is just blowing hot air.
This issue shows up across all major brands including Brivis, Bonaire, Braemar, Breezair and others. The fan works, air is coming through the vents, but it feels like outside temperature air instead of cool, fresh airflow. In many cases, a proper evaporative cooling service helps identify the cause before the problem gets worse.
Evaporative Cooler Blowing Warm Air
For an evaporative cooler to actually cool, the filter pads must be wet. That is the entire principle behind evaporative cooling. Warm outside air passes through water saturated pads, and the evaporation process drops the temperature.
If the pads are not wet, the system simply blows ambient outside air into the house. No cooling effect at all.
So when a unit is blowing warm air only, it usually means one thing:
Water is not entering, staying in, or circulating inside the cooler properly.
What Could Be Causing It?
There are several components that could be responsible, including:
- PCB control board
- Water pump
- Solenoid valve
- Drain valve
- Float valve
It could be one faulty part, or sometimes a combination of issues. That is why accurate assessment is critical. Guesswork can quickly lead to replacing the wrong components and unnecessary costs. A professional evaporative cooling service can save time and prevent avoidable repair expenses.
What We Found This Time
In this particular case, the diagnosis was straightforward.
