I have a Rheen model 21PV40-1 gas water heater, which is relitivley new. Latley the water heater has been hit or miss at best. the electric igniter will heat up and a short time later the burner will ignite. The burner will run for a minute or two and then shut off. Within 3 to 4 minutes the cycle will start all over again. The vent is now running continually (past two days) and the vent in not obstructed. can you please advise what the problem could be!!
Thanks in advance!!
Al
Thanks in advance!!
Al