Sam - I'm one of the many belated responders to your earlier messages. I've got a 98 Rialta RD with a 3163 Norcold that works fine on DC and AC, but won't stay lit on propane. I've read the information at rialta.com and am pulling the unit to try to fix the situation. My theory is to upgrade everything that can be upgraded while I have it out, so your relay seems like a good thing to install. I looked through this entire thread and couldn't find your email address to contact you off-list. Mine is slyfords@..., and I can do Paypal. Thanks - hope you have some left.?
Scott
98RD
San Antonio
Scott 98RD Twin