The compressor does not start on smaller fractional horsepower refrigeration units
Not enoungh cooling due to a dirty condenser
Compressor frequent start and stops & cooler too warm.
What basic Maintenace can I do myself
Product is too warm while the compressor and fans are running
Weather you have a small reach-in cooler or a large walk-in cooler a frozen evaporator coil will warm you up in no time, sounds strange but ture