SERVICE CALL FOR RENTAL PROPERTY: Upon arrival property manager Stated the hvac system is not working properly on cooling mode. After Complete troubleshooting I found the heat pump system 3 ton capacity 9 years old auxiliary drain pan is rusted no extra safety flood switches For main drain line or any wet switch. Test outdoor condenser unit and The defrost board was on lock out mode due to low pressure reset control board and test refrigerant charge pressure are extremely low that’s indications of refrigerant leak I explained to property manager and she stated they have Home warranty company and she will call them to fixed The system. Low pressure unit can ice up system and creates water damage. I recommend to perform leak search to find where is the leak. Homeowner declined any recommendations at this moment. Thanks for choosing TE CERTIFIED.