Morco FEB-24E - Boiler Troubleshooting Flowcharts; General Diagnostic Flowchart

38
DEMAND
Green led on?
DHW works?
CH works?
Fan or Pump
working?
Spark at the
electrode?
Spark/no flame
Flame fails after
ignition?
Modulates correctly?
Noisy?
Out
Go to 1
CH works? Go to 2
Go to 3
Go to 4
Go to 5
Go to 6
Go to 7
Go to 8
No
Yes
No
No
Yes
Yes
Yes
Yes
No
Yes
No
Yes
Yes
No
No
No
No
Yes