Installing a new shop gas heater was giving me some grief, so I poked
around Google and came up with arnoldservice.com. Lots of info, some
test proceedures and good advice. Bottom line, the unit is up and
running after locating a pushed back connector on one of the plugs
going into the Honeywell Smart Valve. Reinserted the connector into the
plastic plug, plugged the connector into the gas valve and the unit
fired first time.
Parts and prices listed on this site seem quite reasonable, and the
good advice is priceless.