Machine is coming up with E3 error code.This suggests a heating fault,apparently. Have looked at the machine a couple of months ago when a burning smell was noticed! Looked at pcb,heater,found pump to be worn out.Pump replaced.No other fault found.No sign of anything burnt.Now E3 is appearing.Can check it again,is there anything else I should check on these machines?
couple of months is a long time, anything could have happened. Look at the heater plug as these often melt internaly prodcuing a smell and finally no heat. if not then obviously heater itself or pcb.