Yes, running your automotive air conditioning system when it is severely low on refrigerant is highly detrimental to the mechanical health of the unit and can lead to extremely expensive repair bills. Refrigerant loops circulate specialized mineral or synthetic oil that provides essential internal lubrication to the moving mechanical parts of the AC compressor; when refrigerant leaks out, lubricating oil is also depleted or circulated inefficiently. Furthermore, low refrigerant starves the evaporator core of cooling capacity, causing the compressor to run continuously under high thermal stress without achieving temperature setpoints, which leads to overheating, internal scoring, seized bearings, and total compressor burnout. You can troubleshoot by turning off the AC switch immediately when warm air blows. You can verify that your system is protected when you stop operating it until professional repairs and recharges are completed.
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