Ether Jones wrote:

The gas valve is opened 17 seconds after the HSI is energized [even
if the igniter isn't glowing]

Wow. I bunch of questions come to mind, if you would be willing to
answer:

- assuming the igniter is faulty but the control opens the gas valve
anyway, how long does the control allow the gas to flow before it
detects "no flame" and shuts it back off?

- does the control recycle through the ignition sequence, and if so,
how many times does it do this before giving up?

- what happens to all the unburnt gas? is the vent fan supposed to be
designed to have sufficient suction to thoroughly scavenge it and blow
it out the vent so none accumulates inside the home? (i.e. is that the
basis on which such a design is deemed safe?)

- where did you get the "17 seconds" info from - your direct experience
with this control, or from some white-rodgers documentation?

Try some creative Googling. FWIW, WR has a website.

Richard Perry


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