Refrigerant Leak Diagnosis & Repair
Refrigerant circulates in a sealed circuit; it is not normally consumed during cooling. Low charge may reflect a leak, but restricted airflow and other faults can also cause icing or weak cooling. Leak location, component condition, and system type determine whether a repair is practical; adding refrigerant without addressing a leak does not resolve its cause.
One symptom.
Several possible causes.
What causes this?
These are possibilities, not a diagnosis. Similar symptoms can come from different parts of the cooling system.
A corroded coil or damaged tubing joint may allow refrigerant to escape gradually.
Vibration or mechanical damage can create a leak at a connection or line.
Restricted indoor airflow can also freeze a coil, so ice alone does not establish that a leak exists.
What to look for
Take note of when the problem occurs and what the indoor and outdoor units are doing. Share these clues when you call.
- 01
Cooling declines over time and the system runs longer to approach the set point.
- 02
Ice develops on accessible refrigerant lines or the indoor coil.
- 03
The system cools briefly after a previous refrigerant addition, then loses performance again.
Refrigerant handling and sealed-system repairs require qualified personnel and appropriate equipment. Do not open a line or attempt to add refrigerant yourself.
What our technician will do
A licensed professional looks for leaks and evaluates the sealed system; adding refrigerant alone does not fix a leak. The findings help determine which repair, if any, addresses the actual fault. Repair pricing is quoted after diagnosis; review the proposed work and price before approving a repair.
Check airflow, coil condition, and operating measurements before concluding that refrigerant charge is the problem.
If a leak is suspected, use appropriate leak-detection methods to locate and assess the affected part of the sealed circuit.
Explain the findings, refrigerant and repair considerations, and options; obtain approval before opening the circuit or making a repair.
If repaired, perform appropriate leak and system checks and verify cooling operation under the conditions present.
What to tell us when you call
- Is your AC blowing warm air or no air?
- Is the outdoor unit running?
- When did the problem start?
- Have you noticed unusual noises, ice, or leaking water?
These details help our technician prepare. You don’t need to diagnose the problem yourself.
Need help with your AC?
Tell us what you've noticed at home. Scheduling depends on your address and the current appointment schedule; contact us to discuss the next step.