technician Taylor arrived on scene to investigate reports of water heater shutting down sporadically. technician found water heater to be a ream 50 gallon natural gas power vent manufactured in 2016. client encountered this problem approximately a year ago the gas control valve would flash seven times signaling a problem with the flammable vapor sensor. client had plumber back out then who showed them how to reset the sensor alarm. once reset the water heater would run fine for a while before triggering again. over the last few months it has happened more and more frequently and now it's a daily occurrence. technician inspected and believes problem to be the sensor itself has failed. a second possibility is that the gas control valve has failed. technician will supply proposals for repair or replacement. after speaking with client he agreed to go the route of attempting to replace the vapor sensor first. technician will reach out to parts house to get one ordered. Office will be in tou