TROUBLESHOOTING TOPICS

Unit is not operating

  • Cause: No power to the unit

  • Solution: Check the power from the power supply panel

  • Cause: The overload tripped

  • Solution: Check the power from the power supply panel

Little or no airflow

  • Cause: Fan motor is burnt
  • Solution: Replace the fan
  • Cause: Refrigeration
  • Solution: See section ‎7 — Maintaining the unit
  • Cause: Circuit breaker tripped
  • Solution: Rest the circuit breaker
  • Cause: Fuse is blown
  • Solution: Replace the fuse

Little or no water extraction

  • Cause: Insufficient air flow
  • Solution: Check and perform the suggestions for the above “Little or no airflow” symptom
  • Cause: Compressor
  • Solution: Contact the factory service center

Unit vibrates excessively

  • Cause: Loose compressor
  • Solution: Tighten the nuts of the compressor mounts
  • Cause: Damaged fan
  • Solution: Replace the fan

Water flooding inside the machine

  • Cause: Drain pipe is blocked / frozen
  • Solution: Clear the obstruction
  • Cause: Drain pipe is too high
  • Solution: Ensure that no section of the drain hose is above the level of the water outlet
  • Cause: Crimped or blocked tubing
  • Solution: Straighten, clear, or replace the tubing

Compressor is not working while the fans are working

  • Cause: High pressure switch fault
  • Solution: Press the HP switch button
  • Cause: Oil pressure switch fault
  • Solution: Press the oil pressure switch button
  • Cause: Circuit breaker tripped stage 1
  • Solution: Press circuit breaker stage 1
  • Cause: Circuit breaker tripped stage 2
  • Solution: Press circuit breaker stage 2
  • Cause: Main compressor protection fault
  • Solution: Press compressor protection fault

The fans are not rotating

  • Cause: Possible failure of the no volt relay component
  • Solution: Check there is no failure of the no‑volt relay component

The two fans are rotating counterclockwise (blowing air into the unit)

  • Cause: The power supply cable is not connected correctly
  • Solution: Go to the main power supply connections and reverse two of the cables (from R S T to R T S)