Espar D5 Hydronic issues
I cannot get my Espar to fire up. I believe the van had been sitting when I bought it for some time and the last owners never used the furnace or water heater. I turn the system switch on, furnace switch, then the thermostat to the temperature and the coolant pump runs, the fan will run but the furnace will not fire up. I checked for fault codes on the other Espar control but none show up? Any ideas?
2010 E350 6.0 4x4 EB 50 SMB
2012 E350 V10 4x4 RB 50 SMB (sold)
2007 E350 6.0 4x4 RB 50 SMB (sold)