Code 17 (40-80-90): Error in the flame detection during boiler function
The control panel does not recieves flame detection while the burner is burning (the boiler already
flamed up and is working)
All causes are the same than in Code 12, except the problems related to the sparkle (because the boiler
already lighted up successfully).
Code 19 (40-80-90): Problems at the Pressure-Switch (presostat)
The pressure switch
a. The pressure switch is broken
Change the pressure switch
b. The pressure switch is not properly connected into the right pin-holes
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Code 20: Problems related to the Exhaust System
If when removing the burner seal panel the boiler works properly, and when replacing it an error occurs,
this means there is a problem in the exhaust pipe.
a. Too long exhaust pipe.
b. Verify the connection between the 1 meter vent pipes is correct. It might be ok on the outer pipe,
but the inner pipe could be loose. This would make the in and out air mix, causing the flame to extin
guish due to the lack of oxygen (Code 17) or that the exhaust gases couldn’t escape due th the high loss
of the charge produced by this open connector (Code 20).
If the error code 20 comes up continuously, verify that the presostat plastic pipes aren’t connected
wrong (in the correct position they should be crossed, where the pipe from the presostat is connected to
the Venturi). Blocking of the pipes can also occur, which can be cleared by gently sucking on the pipes.
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