AIRCON NOT COLD \u2014 CAUSES & FIX
Aircon not cold? Uncle 7 Aircon explains the top causes \u2014 dirty filters, low gas, faulty compressor \u2014 and how to fix them in Singapore homes.
An aircon that runs but isn't cold usually points to one of a few culprits: dirty filters and coils, low refrigerant, a failing capacitor, or a tired compressor. Here's how to tell the difference and what to do.
Top Causes
- Dirty filters and fan coil restricting airflow
- Low refrigerant from a slow leak
- Faulty capacitor stopping the compressor
- Failing compressor (older units)
- Blocked outdoor condenser
Quick Checks Before You Call
- Set mode to Cool (not Fan or Dry)
- Set temperature below room temperature
- Vacuum the filters and switch on again
- Check the outdoor unit is running
When to Call Uncle 7
If the above doesn't restore cooling within 20 minutes, WhatsApp us — we'll diagnose, quote firmly and fix it on the same visit where possible.
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