Repair manual

Cub 200/300 Troubleshooting the Burner
ghi_tx001207gb.fm 47
Continued from the previous page.
6. Measure the voltage between terminal M13 and terminal M18. To do so, you
must wait through the 10-second prepurge cycle.
Note: The voltage will only be present for approximately 1 second if the flame is
not established. In such a case, the machine will go into a fault condition. It may
take more than one attempt to measure the voltage.
Is 108–132 VAC measured?
7. Turn the machine off.
Result The output voltage from the control panel has now been checked.
If the problem has not been resolved, leave the machine disassembled and
continue with the next topic. Otherwise, reassemble the machine.
Yes ____ No ____
The outgoing power from the control board
is OK.
The control board has failed. Disconnect
the power supply and replace the control
board.