MDC ROBSON XTT 2021, Owner'S Manual

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21
Temperature Control
When the combustor is ignited and running, you can turn the control knob according to the arc mark around the
control switch (1) to control the temperature.
Ventilation mode
You can only enter the ventilation mode when you press the ventilation mode key to start the heater. The
ventilation indicating light turns green after pressing ventilation button. Heater can only circulate air without any
heating. The fan speed can be continuously regulated with the control knob.
Shutdown
To shut down the unit, press the button indicative of the current mode of operation. If the fuel pump is at work
before the heater is turned off, the pump will shut down immediately, but the fan will continue to run for 180
seconds.
*DO NOT TURN OFF MAIN SWITCH ON PANEL UNTIL THE UNIT HAS COMPLETED ITS SHUTDOWN
PROCESS.
Trouble Shooting
When entering fault mode, the display will flash the LED lights to indicate the fault code. This will be indicated by:
2 long flashes of 2 seconds followed by a sequence of flashes with a 0.5 second interval. The number of quick
flashes indicates the fault code on the table below.
Times of flashes
of LED
Cause of trouble
1 Failure of second start
2
Termination of the third time of combustion
3 Power voltage out of specified range
4
Combustion chamber temperature too high during self-check period
6 Broken circuit or short-circuit of temperature sensor
7
Broken circuit or short-circuit of fuel pump
8 Broken circuit, short-circuit, or rotation clogging of fan motor
9
Broken circuit or short-circuit of glow plu
10 Ambient temperature over high before starting or furnace body temperature
over high during heating process
11 Broken circuit or short-circuit of overheating sensor
12 Broken circuit or short-circuit of control switch
13 Maintenance reminder: More than 800 hours of work time
14 Failure of controller