Galletti MCC Series - User Manual

Questions and Answers

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Kathleen ButlerAug 11, 2025
What to do if Galletti MCC compressor does not start?
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  Jason JonesAug 12, 2025
  If the compressor on your Galletti Air Conditioner isn't starting, it could be due to: * Compressor burnout or seizure: The solution is to replace the compressor. * Compressor contactor de-energized: Check the voltage at both ends of the compressor contactor coil and check the coil's continuity. * Open power circuit: Find the cause that tripped the protection. Look for short circuits in the wiring or windings of the pump, fan, compressor motors, or the transformer. * Motor thermal protection open: The compressor may have operated in critical conditions or there might be insufficient refrigerant. Check the working conditions to ensure they are within operating limits.
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Steven GalvanAug 21, 2025
How to fix Galletti MCC compressor that starts and stops repeatedly?
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  Ashley JonesAug 21, 2025
  If your Galletti Air Conditioner's compressor starts and stops repeatedly, it could be due to: * A tripped minimum pressure switch. * A defective compressor contactor: Check the compressor contactor and replace if necessary. * Wrong set-point or differential setting: Change them according to the indications given in the tables.
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Kathy LeeDec 1, 2025
Why Galletti Air Conditioner unit does not start?
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  ian16Dec 1, 2025
  The Galletti Air Conditioner might not start due to several reasons: * A faulty connection or open contacts causing voltage issues. Solution: Check the voltage and ensure all contacts are closed. * Remote controls not enabling the unit. Solution: Verify the water circulation pump's efficiency, check the pressure switch, bleed air from the circuit, and ensure contacts 16 and 30 on the terminal board are closed. * The anti-recycle timer is active. Solution: Wait 5 minutes for the timer to enable operation. * A defective service thermostat sensor. Solution: Check and replace the sensor if needed. * The unit is not enabled by the service thermostat because the system is at the set temperature. Solution: Check the thermostat setting. * The unit is not enabled by the antifreeze ther...