If you have a multimeter put the 2 leads across the AFS contacts on start up with the meter set to AC volts. If you read a voltage the contacts have not closed and if you read 0 volts the contacts have closed. If you don't have a multimeter, you can remove the 2 wires fron the AFS and hold them together in good contact and if the heaters fires up you know that the AFS contacts were not closing.
More information:
(1) my heater is the 400K BTU/HR SR400NA.
(2) I figured I'd test the AFS while waiting to see when the gas company will be able to come out-- so as suggested, I connected the 2 wires and it still didn't start and no clicking of the igniter.
(3) The blower seems to have great pressure.. while I've never tested it before it sucked my hand hard about 3-4 inches away from the opening
(4) All (gas/air) hoses look in good order, not chewed
Questions:
(1) What is the error code that the system would display if the natural gas pressure was too low?
(2) There is a connector with 2 wires coming out of it that is designed to pivot. Is this the "toggle-style valve"? In the operational manual it talks about this valve as controlling gas flow but I thought that was the "on / off" gas dial. I moved it back and forth during the lighting procedure to see if it would have any effect, but it didn't so I put it back (to the best of my ability) to it's original position.
All comments appreciated.
