Your the second guy that stated that fact, Mark. I guess I better check the relay next. That part must be OK.
Thanks, LLW LeRoy Westlund Westlund TV & Electronics 97 North Main "Where there's a will,... Centerfield, UT 84622-0087 There's always a way." Ph./Fax 435-528-3822 mailto:[EMAIL PROTECTED] -----Original Message----- From: Mark Wentowski <[EMAIL PROTECTED]> To: ELECTRONICS PROFESSIONALS LIST <[EMAIL PROTECTED]> Date: Friday, June 18, 2004 12:10 AM Subject: RE: [Techs] Sharp Micro-wave oven model R-930AK Won't heat. >It monitors the temperature of the oven cavity during convection cooking. As >best as I can remember it doesn't have anything to do with power to the >magnetron during the microwave mode. >I think the original post was no microwave operation. > >Mark Wentowski >Perry Hill Electronics >3836 Harrison Rd. >Montgomery AL 36109 >phone: (334)279-5622 >fax: (334)273-9050 >[EMAIL PROTECTED] > >-----Original Message----- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] Behalf Of LeRoy Westlund >Sent: Thursday, June 17, 2004 11:57 PM >To: ELECTRONICS PROFESSIONALS LIST >Subject: Re: [Techs] Sharp Micro-wave oven model R-930AK Won't heat. > > >It has a small part on it that looks like a glass diode with no black bands. >Just a dip in the center. It measures the same from both forward and reverse >polarity. >It mounts into a cavity hole, located near a heating element on the opposite >side of the oven, from the Megnetron, before the 2 screws are tightened. >It's not a regular thermal fuse,...it's called a thermistor on the diagram. >This is the first oven I have worked on that has a heating element on the >one side. >I guess that's what they call a convection oven. >The fan, and the oven light works OK, but the voltage that drives the high >voltage transformer comes from a relay on the control panel. This same >voltage also drives the turntable motor, and that voltage is missing. > >LLW > >LeRoy Westlund >Westlund TV & Electronics >97 North Main "Where there's a will,... >Centerfield, UT 84622-0087 There's always a way." >Ph./Fax 435-528-3822 >mailto:[EMAIL PROTECTED] > >-----Original Message----- >From: Eugene Spooner <[EMAIL PROTECTED]> >To: ELECTRONICS PROFESSIONALS LIST <[EMAIL PROTECTED]> >Date: Thursday, June 17, 2004 8:31 PM >Subject: Re: [Techs] Sharp Micro-wave oven model R-930AK Won't heat. > > >> Is that bolted down to a metal ? If so , should read zero >>ohms ! >>Best: Eugene >> >>LeRoy Westlund wrote: >>> >>> Hi members, >>> This Sharp micro-wave oven won't heat. >>> Control panel counts down OK, but has no 115 A/C volts driving the high >>> voltage transformer. The Primary interlock relay RY-2 is not activating. >>> Also, the turn table does not turn. >>> I found a fix in Jeff's Intrepid CD program that said to replace the >>> Temperature thermistor part # FH-HZA041WREO. >>> I found the thermistor, but it measures 235K ohm across it. Do you think >>> that reading is too high ? Shouldn't a good thermistor read much less >then >>> that ? Does anyone have one they could measure, to confirm that this part >is >>> bad. I hate to order one, if it won't fix the problem. >>> >>> TIA, >>> LLW >>> >>> LeRoy Westlund >>> Westlund TV & Electronics >>> 97 North Main "Where there's a will,... >>> Centerfield, UT 84622-0087 There's always a way." >>> Ph./Fax 435-528-3822 >>> mailto:[EMAIL PROTECTED] >>> >>> _______________________________________________ >>> Tech Repair CD...order your just $49.00 plus shipping...One year of >updates free. >>> www.intrepid-video.com www.tech-repair.net >>> Techs mailing list >>> [EMAIL PROTECTED] >>> http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com >> >>-- >>Head Witch Doctor and Chief Bottle Washer >>Eugene Spooner , CET , AAS , NP >>Eugene's Carry-In TV >>1417 Eastway Drive >>Charlotte , NC 28205 >>mailto:[EMAIL PROTECTED] >> >>_______________________________________________ >>Tech Repair CD...order your just $49.00 plus shipping...One year of updates >free. >>www.intrepid-video.com www.tech-repair.net >>Techs mailing list >>[EMAIL PROTECTED] >>http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com >> > > >_______________________________________________ >Tech Repair CD...order your just $49.00 plus shipping...One year of updates >free. >www.intrepid-video.com www.tech-repair.net >Techs mailing list >[EMAIL PROTECTED] >http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com > > > >_______________________________________________ >Tech Repair CD...order your just $49.00 plus shipping...One year of updates free. >www.intrepid-video.com www.tech-repair.net >Techs mailing list >[EMAIL PROTECTED] >http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com > _______________________________________________ Tech Repair CD...order your just $49.00 plus shipping...One year of updates free. www.intrepid-video.com www.tech-repair.net Techs mailing list [EMAIL PROTECTED] http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com
