DIY & Tips5 min read
7 Silent Signs That Your AC Needs a Refrigerant Top-Up
Published: Apr 18, 2026 by Lourds Editorial Team
engineering
AC blowing lukewarm air, ice on the coils, or hissing sounds? Learn how to spot low refrigerant charges before they damage your compressor.
Lukewarm airflow is a common sign of low refrigerant, but there are other, subtler indicators that your AC system is losing gas charge.
Silent Signs
- Ice on Copper Lines: Ice forming on the thin liquid line at the outdoor unit is a primary sign of low pressure.
- Hissing Sounds: A continuous hissing or bubbling sound indicates gas escaping through a micro-crack.
- Longer Cooling Cycles: The AC runs continuously without shutting off, driving up power bills.
Lourds Gas Services
We diagnose and repair gas leaks using bubble tests, seal cracks, vacuum the lines, and recharge refrigerant using digital scales. Call our Thane team for immediate support.
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Lourds Aircool Service
Shop no 3, Shantiban Society, Masan Wada, Azad Nagar, Thane West, Thane, Maharashtra 400601.
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