Air Conditioning Blowing Warm Air
The indoor unit runs and the fan blows, but the air isn't cold..
The indoor unit runs and the fan blows, but the air isn't cold.
What is actually going on
The indoor unit runs and the fan blows, but the air isn't cold.
The realistic causes, in order
Low refrigerant charge caused by a leak, which is the most common single cause A dirty filter or blocked indoor coil restricting airflow across the heat exchanger An outdoor unit that can't reject heat because the coil is blocked or the fan has failed
What we test on site
Refrigerant pressures and superheat against the manufacturer's data A leak test where pressures indicate loss, because topping up without finding the leak is not lawful practice Indoor and outdoor coil condition and airflow
Questions we get asked
Why is air conditioning blowing warm happening on an air conditioning system?
Low refrigerant charge caused by a leak, which is the most common single cause
What normally puts air conditioning blowing warm right?
Where a leak is found it is repaired and the system recharged correctly, rather than simply topped up.
Is it safe to keep using the system with air conditioning blowing warm?
Refrigerant work is controlled under F-Gas regulations and must be carried out by a certified engineer. We are REFCOM registered for this work.