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1. LIQUID CRYSTAL DISPLAY
The display can be used to check temperature adjustments, error codes, etc.
– the temperature reading on the left side of the display indicates the temperature of the water
to be heated
– the temperature reading on the right side of the display indicates the target temperature set
for the water
2. ACTIVITY INDICATOR LIGHT
This light is on when the water heater is running.
3. OIL BURNER INDICATOR LIGHT
This light is on when the oil burner is in operation.
4. OVERHEAT WARNING LIGHT
This warning light is lit when the temperature of the water being heated exceeds 50°C or the
overheating sensor in the heater detects a temperature higher than 75°C. The heater burner is
switched off at the same time.
5. POWER BUTTON
Switches the device power on and off.
6. TEMPERATURE CONTROL BUTTONS
These buttons are used to set the desired water temperature.
7. LOW WATER WARNING LIGHT (W/L = Water Low)
The warning light is lit when the water level of the heating system drops too low or if there are
air bubbles in the device.
8. BURNER MALFUNCTION WARNING LIGHT (MISFIRE)
This indicator light is lit if the burner has failed or shut down during operation
Controller
Operating switches and display
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