Car AC Lines Freezing
Ice or frost forming on the car AC lines and pipes. Indicates a problem with refrigerant flow or airflow.
Possible Causes
Low Refrigerant
High likelihoodLow refrigerant causes excessive pressure drop, leading to line freezing.
Expansion Valve Stuck Open
Medium likelihoodExpansion valve stuck in open position, allowing too much refrigerant flow.
Poor Airflow Over Evaporator
Medium likelihoodA clogged filter or weak blower prevents sufficient airflow over the evaporator, causing freezing.
How to Diagnose?
- 1 Turn off AC and let lines defrost
- 2 Check refrigerant level
- 3 Replace cabin filter
- 4 Inspect expansion valve
- 5 Verify airflow through evaporator
Repair Cost
Depends on cause and vehicle type
| Service | Price | Notes |
|---|---|---|
| Estimated Repair Cost | 50–800SAR | Depends on cause and vehicle type |
* Prices are estimates and may vary depending on vehicle type and condition. Contact us for an accurate quote.
Frequently Asked Questions
Frost on AC lines, is it serious?
Yes, freezing indicates a system problem. Turn off AC temporarily and request inspection. Ignoring it can damage the compressor.
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Read moreReady to Fix Your Car AC?
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