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Troubleshooting Tips

Case

Explanation

Hydro Kit does not operate.

  • Have you made a mistake in timer operation?

  • Has the fuse blown or has the circuit breaker been tripped?

The room has a peculiar odor.

  • Check that this is not a damp smell exuded by the walls, carpet, furniture or cloth items in the room.

Hydro Kit does not operate for about 3 minutes when restart.

  • This is the protector of the mechanism.

  • Wait about three minutes and operation will begin.

Does not cool or heat effectively.

  • The room may have been very hot when the Hydro Kit was first turned on. Allow time for it to cool down.

  • Has the setting temperature been set incorrectly?

The unit operation is noisy.

  • Refrigerant flow sound

    • While the system is being started or stopping, sound from the refrigerant flow may be heard.

  • Sound for the indoor unit heat exchanger

    • During the cooling operation, a sound may be heard from the indoor unit heat exchanger due to water freezing or melting.

  • Water noise

    • During starting or stopping of the unit, noise can appear in water piping

  • During defrost

    • Noise can appear in unit due to defrosting of water.

Steam is raised in outdoor unit.

  • Steam from outdoor heat exchanger

    • During defrosting operation, ice on the outdoor heat exchanger is melted, resulting in making steam.

Remote controller display is faint,or no display at all.

  • Has the circuit breaker been tripped?

Note
  • Max Allowable pressure High side : 4.2 MPa / Low Side : 2.4 MPa

  • Max Allowable water temperature High side : 50 7 / Low side : 10 7

  • Max Allowable water pressure : 0.3 Mpa