Marco ECOBOILER T20-3 Instructions page 3

Power
Button
Ready/Status
Indicator
Ecomode
Button
Figure 1: Machine User Interface
NOTE:
Because the boiler is electronically controlled no priming is necessary.
The element cannot switch on until a safe level of water is reached.
ECO Mode Operation:
 All Ecoboilers use high grade insulation and it is applied to give a significant energy usage
improvement over a standard water boiler.
 The 20 & 30L Ecoboiler variants also incoprate a ½ tank 'ECO mode' function.
 To enable the 'ECO Mode' press the button located below the 'Ready' indicator so that the leaf
symbol illuminates green.
 This mode saves energy by mimimising the energy wasted during machine down-time.
 NOTE: The ECO mode is most effective in installations where the machine has a regular 'off'
period.
 To achieve the most benefit from the energy saving 'ECO Mode' on your Ecoboiler unit, the
following method should be employed:
o Towards the end of the boilers operating period for a given day, switch the machine to
ECO Mode. Whilst maintaing water at 96
full, where it will remain.
o At the end of the machines operating period it should the be turned 'off'.
o During the 'off' period as there is less water in the tank there will be less energy lost to
the surrounding environment resulting in an energy saving.
 To disable simply press the 'ECO Mode' button again so that the leaf symbol is not illuminated
TROUBLESHOOTING:
The Ready/Status light signals various errors or problems. A cycle of red flashes indicates an error.
The number of flashes in a cycle corresponds to the symptom in the table below:
Status/Diagnostic light gui de:
No of
flashes
Water level below elements. Normal
2
3 Temperature sensor failure (o/c)
4
5 Temperature sensor failure (s/c)
1900053
Symptom
when machine first fills.
Water not heating
o
C, the machine tank will slowly drop to half
Check water pressure , if this is OK then call
REV.5
Action required
service agent.
Call service agent
Call service agent
Call service agent
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