What you'll notice
Visible ice on the indoor coil behind the filters, weak or no airflow, and water dripping from the unit once it thaws.
Why it happens
Restricted airflow from clogged filters or a dirty blower wheel is the usual cause, with low refrigerant charge second. Both let the coil run below freezing.
How we fix it
We thaw the unit, clean filters and coil, and measure airflow and pressures to confirm which cause applies. Owners often report this as a water leak, so establishing the real cause prevents a pointless drain repair.
Still not working?
If the checks above haven't restored your evaporator coil & filters, this usually needs a technician. Our Aircon Cleaning & Sanitising service covers exactly this fault — from R700, quoted upfront.