csi 85t ravenheat no power at fan?

Looked at rav85t today. Pump runs for a bit buit then goes to lockout. No power at fan so suspect small fan pcb or main pcb.
Any ideas??
gastronic1967, January 2016


done
changed master pcb which now sends 240v to fan and fan pcb. it is working fine

gastronic1967, January 2016
link Click here to see other fixes for Ravenheat.