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Here we have a roof top condensor unit on freemason ave that has a rusty/peeling filter dryer x2, accumalator, and most important the fan motor support cage. What i did was essentially remove the fan motor and top of condensor and began to remove chipping paint from fan cage with multiple types of wire brushes. After that I cleaned the filter dryers, one inside of the unit and one outside of the unit, and not to mention the compressor top. After all chipping paint and rust was thouroghly cleaned I wiped down those areas with alchohol and acetone to get surface nice and clean. In the end I painted all treated areas with 2 coats of paint primer combo exterior paint. The reason for painting the top of condensor in addition to the cage itself was because the top was also rusting. The outline was created with masking tape as a paint sheild in order not to get paint on the coils.

This premaintance was discovered after I went to service a fourth floor indoor unit. The coils on the indoor unit had slight mold build up. I cleaned the coils with an evaperator coil cleaner and vacumed out the condensation drain. During that visit I also visited the roof and cleaned the outdoor coil that is also when I saw the multiple rusting parts. After doing a walk through I saw that justa about every unit needed pre-maintenace on the same parts. By taking steps to stop rusting damage can be prevented that can come in the form of freon leaks, and worst of all the fan motor cage can fail and cause the fan to fall and cause a freon leak/fan motor to fail and etc. 7-8 pounds of r22 refrigerant can be lost/vented to the atmosphere. damage can range from $500-$1500 in damage.

Click here to see cleaning of indoor unit