Blodgett BCT Series - Page 50

Troubleshooting
Error 54/64
Fan error. The gas fan RPM before ignition is not correct.
Steps
Check list
Solution
1
Go to the test menu. Test the gas fan.
If no, test the gas fan. Verify
Verify that the RPMs are registered.
that there is power input.
2
Test the gas fan: Set the speed at 2000
Remove the low voltage
RPM and verify that the actual RPM
plugs from the IO board J18,
reaches 2000 RPM.
J19 and J20. The fan should
run at full speed. If no RPMs
are registered, change the
gas fan.
3
Verify that the main contactor is
Ensure that the main
activated.
contactor is activated, and
then go to the test menu
and test the fan again.
4
Check the fuses and the wires.
Error 55/65
Ignition failure. Warning only: did not ignite at first try.
Steps
Check list
Solution
1 Check, clean, or change the
electrode or burner.
2 Go to test menu.
Perform the start-up sequence.
SERVICE MANUAL 51