Have a look at http://behmor.com/knowledge-base/error-code-4/ for some guidance
Hi there, after many years of faithful service my behmor 1600 has developed a err4 fault. It only seems to come on with about 2 mins to go on the cleaning cycle. It has not come on during a roasting cycle. I have cleaned inside and also removed the covers and cleaned the fan etc but to no avail. I have read that this may be a fan fault. Is this an easily replaced thing? Can anyone point me in the direction to get parts etc?