MDC XT16HR ISLAND 2021, Owner'S Manual

Page: 65 / 107

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61
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 plug
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