Seaward Gourmet galley cook stove has an issue with the oven pilot staying on at lighting . In checking on availability of thermocouple it appears it is no longer offered . Are there differences in thermocouple ? Anyone offer an opinion on micro wave convection oven for baking , could this substitute for the Seaward lp oven ? thanks Charles MV Mystic Journey PNW

Charles, Add to the recommendation for cleaning the thermocouple, clean the pilot burner assembly. Carefully remove the burner assembly, you should find a small cylindrical piece with a domed top that fits into the inside of the burner assembly, and is held in place by the compression nut that attaches the pilot burner to the pilot tube. This pilot burner orifice can be nearly paper thin in some models, in others, it's brass and heavier gauge, but nevertheless, treat it very gently. Preferably use small ignition wrenches to disassemble the parts, or a mini crescent wrench to avoid distorting the compression nut. Once you have access to the orifice assembly, carefully clean it with a scotchbrite pad, then use a fine wire to clean the orifices. There may be multiple holes, they are very tiny. The objective is to simply clean the accumulated micro-dust particles from the holes, not to ream them. So a fine wire is in order. I yank a wire from a copper fitting brush, and use a needle nose pliers to insert it into the orifice, then just gently move the wire around to clean the orifice. It's surprising how much of a difference it can make. Blow out with compressed air. The pilots on ovens are very low to begin with, so any accumulation of dirt can impede the flow enough to interfere with a good t-couple flame. Make sure the flame covers as much of the t-couple as possible, the edge of the flame should be at the edge of the t-couple, with as much of the flame playing on the t-couple as possible. The hood of the burner can be tweaked to accomplish that. Don't attempt to adjust the thermocouple bulb other than sliding it in its mount. Any hamfisting will damage it. At the risk of TMI, it helps to be aware that there are two kinds of thermocouples in use in gas ovens. The pilot thermocouple (fatter) generates a small amount of current that holds a magnetic valve open. The other(skinny, very fine tube) is a hydraulic type that opens a burner valve in response to a high/low pilot flame.  Both can benefit from cleaning with a scotchbrite pad, both can be easily damaged by rough treatment, and the related valves are typically hard to find or obsolete, and costly if you can find one. A rebuilt burner valve ass'y for our Princess oven was $200 with return of the core. As you indicated, some of the t-couples are N/A. Most cannot be replaced with a conventional Q340A Honeywell, neither the mount or the coupling to the valve is compatible as a rule. Sure Marine is a great source for information and parts. On 12/23/2019 8:36 PM, Miller Charles via Trawlers-and-Trawlering wrote: ------- Steve Sipe Solo 4303 /Maerin/ > Seaward Gourmet galley cook stove has an issue with the oven pilot > staying on at lighting . In checking on availability of thermocouple > it appears it is no longer offered . Are there differences in > thermocouple ? > Anyone offer an opinion on micro wave convection oven for baking , > could this substitute for the Seaward lp oven ? > > thanks > Charles > MV Mystic Journey > PNW > _______________________________________________ > http://lists.trawlering.com/mailman/listinfo/trawlers_lists.trawlering.com > > To unsubscribe or modify your subscription options (get password, > change email address, etc) go > to:http://lists.trawlering.com/mailman/listinfo/trawlers_lists.trawlering.com > Trawlers & Trawlering and T&T are trademarks of Water World > Productions. Unauthorized use is prohibited. > >