Initiating the Evaporator Manual Defrost Cycle

Important Before initiating a manual defrost, ensure that the unit is not already in a defrost cycle. When the unit is in a defrost cycle the defrost symbol appears on screen.
Note If the unit is not running, or if the coil temperature is not below 37°F, the request for a manual defrost is ignored.

  1. Press and release the Select key once, and the letters dEF will appear (flashing) on screen along with the present defrost condition OFF.

    Display Showing Defrost Off

  2. To activate manual defrost, press the Enter key and then the Up or Down key and the defrost condition will change to On.

    Display Showing Defrost ON

  4. Press the Select key twice to return to the Standard Display where the Defrost (dEF) symbol along with the DEFROST icons will appear when the defrost cycle begins.

    Note In 380.xx software, the compartment temperature appears instead of the Defrost (dEF) symbol.
    Note The defrost termination switch must be closed.
    Note Press the Select key three times for multi-temperature or reverse cycle units.

    Display Showing Defrost Icon

  5. Press the Select key twice to return to the Standard Display (three times in bi-temperature units and in reverse cycle units), where the letters dEF and the DEFROST symbol will appear when the defrost cycle starts (the load compartment temperature must be lower than 0ºC).

    Note The letters dEF will remain on screen for a while after returning to cool mode.

  6. A defrost cycle terminates automatically, in accordance with the [dtt] time set at the Parameters screen. See Section 3 for a description of the [dtt] parameter.

    Note The letters dEF will remain on screen for a while after returning to cool mode.
Parent topic: Operating Instructions