Roger, I contacted Goyen, the manufacturer of the low pressure gas control valve (a subdidiary of Pentair Environmental Systems). They're supposed to send me the style="display:none;">Roger, I contacted Goyen, the manufacturer of the low pressure gas control valve (a subdidiary of Pentair Environmental Systems). They're supposed to send me the data sheet specs on it. In the meantime, what voltage reading are you getting at the valve during normal operation- and does the voltage drop out after you lose the flame? What about the oxygen depletion sensor, is that kicking in causing the flame out? I have been on service calls where such things as a dead spider in the vent limiter or breather cap as being the culprit as the cause of low or no gas flow from the regulator to the appliance. I have also gone on calls where "professional" installers improperly connected gas regulators- reverse flow; improper orientation; sizing; and using NG regulators on LP installs; so I leave no stone unturned when troubleshooting problems like yours, especiall when this is being done remotely and I'm not there.

And yes, it is possible that the control board is the problem. You'll have to troubleshoot it at the component level. And yes, it is possible that the control board is the problem. You'll have to troubleshoot it at the component level.