The next step should be to clean the intake of the water heater.
Fvir water heater problems.
Printed in the u s a 0108 part no.
1416 18 inch stands and gas water heater installation 1416 technical bulletin abstract.
A sealed burner assembly or flammable vapor ignition resistant fvir unit prevents the ignition of flammable vapors outside the water heater.
As a result design changes were mandated by the consumer products safety commission cpsc and all 30 40 and 50 gallon gas fired water heaters manufactured after july 1 2003 have been required to have flammable vapor ignition resistant fvir technology.
Find the most common problems that can cause a ao smith water heater not to work and the parts instructions to fix them.
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Use a flashlight or headlamp to locate the burner.
Check to see if the wiring for the fv sensor is correct.
But there were still thousands of house fires attributed to water heaters each year.
Water heater unit shuts down.
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Axle roller shaft.
Most of the problems with a rheem gas water heater will be related to the fvir lockout.
You will find two small gas tubes leading to the burner.
Within the water heater combustion chamber through the special flame trap.
In the event of a flammable vapor incident the flammable vapor ignition resistance fvir system disables the water heater by shutting off the gas supply to the water heater s.
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If the problem persists then replace the fv sensor.
The burning vapors literally burn themselves out without escaping back into the room.
Not for use in mobile homes.
But if there is a good reason for example installation cost water heater sizing issues and maintaining positive vent slope being the most prevalent reasons to not elevate the tank it is a safe and reasonable solution to put an fvir water heater on the garage floor.
Then see if there are any open circuits to the fv sensor.
If the water heater locks you out after it shuts down consider cleaning and reinstalling the air intake screen on the blower assembly.
Fvir gas water heater flammable vapor ignition resistant for space heating and potable water heating only.
With most models your first step should be to press the tco thermal reset button which is located on the front of the combustion door.
