MH-082-00 Ecomaster Basic Manual PAGE 6 de 7
Ecomaster Basic
1.6 Visualizing the compressor operation.
When the compressor is activated the led next to the key (3) will light up. The led will blink if the
control activates the compressor output but detects that there is no return from the pressure switches due
to disconnection of the compressor as a result of high or low pressure.
Note: There is a delay of 20 seconds between the time the compressor led lights up and activation
of the compressor.
1.7 Ice protection. Visualizing icing temperature.
If the system installed includes an ice sensor in the evaporator, the temperature measured by this sensor
can be visualized by simultaneously pressing the (2) and (1) the keys for 5 seconds, after the air
conditioner has been turned on..
The temperature registered by the de-icer will be shown for 20 seconds, with the LED blinking in the bar
as seen in the figure above.
If the temperature is over 11ºC, the lower LED will blink; if the temperature is below 0ºC the upper LED
will blink. Failure of any of the LED to blink means there is a fault in the de-icer gauge.
To protect against ice, the compressor will stop if the temperature measured is below 3ºC.
2. DETECTING AND INDICATING ERRORS
Every time the air conditioner is activated by pressing the (3) button, the control will perform a
diagnostic to detect errors or faults. If the control detects any of the following errors then one or various
LEDs will blink, as shown in the following table:
Led blinking Description
1 Error in the temperature gauge
2 Error in de-icer gauge
3 Short circuit in the compressor output
4 Short circuit in the evaporator fan output at low speed
5 Short circuit in the evaporator fan output at high speed
6 Short circuit in the re-circulation vents outputs
7 Short circuit in the evaporator fan PWM
8 Short circuit in the condenser fan PWM
The following warnings may also appear when errors are indicated:
Led nº 1
Led nº 16
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