Seasonal Maintenance


Seasonal Checklist:


  • Check concentrations of glycol (see fluid chart below.)*
  • Check fluid level, if applicable.
  • Check that the reservoir and fluid are free of debris or contamination.


  • Ensure crankcase heaters are operating.*
  • Check & clean condenser(s) and fan(s).
  • Check compressor AMPs (compared to name plate.)


  • Check the pump(s) for leaks.
  • Check pump motor(s) AMPs (compared to name plate.)
  • Look over piping for any cracks or leaks.*


  • Check that sealed electrical boxes are adequately sealed.
  • For outdoor units, make sure Ebox heater is operating in order to keep components that need heat to run properly are protected.*
  • Check compressor, pump and fan contactors (replace if needed.)
  • Check fuses and replace as needed.


  • Inspect, clean or replace.

Proper Flow & Pressure

  • Most chillers are equipped with a pressure gauge.

If you have any questions about how to determine adequate flow and pressure, please call our Service Technicians at 800-968-5665 ext 500.

*These checks are especially important leading into the winter months to prevent freezing in your system