All works except no heat;not the Mag;found a shorted diode on ''smart board'' D08.It drives power relay RY2.No markings on this diode so replaced with a NTE 125.Now as soon as I plug unit in it starts up.This must be a zener diode.Anyone know what value this diode is??..tia.... Don of HARTS-TVCR-ASC 9 Robert St,Oromocto,NB,Canada,E2V3N2 Tel-506-357-9785,Fax-506-357-6010 hartstv@xxxxxxxxxxx ***************************************************************************** Classifieds! Buy or Sell! http://sell.tech-assist.org The Tech Address Book: http://www.tech-assist.org/secure/tip/contact.htm Add a Repair Tip Here, or Change/Remove your Email Address: http://www.tech-assist.org/secure/tip/main.htm Lost Password: http://www.tech-assist.org and select "Lost your Login Info?". Email Archives: http://www.freelists.org/archives/techassist/