Manual
2233
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Is Proper
Gas Pressure Being
Supplied to the
Heater?
Check for Proper Gas
Pressure to the Heater.
Proper Pressure at High
Heat Should Read 5 PSIG.
Yes
No
Is Secondary
Orifice Plugged?
Remove Orifice and
Clean It.
Yes
No
A. Remove Thermostatic Head from
Thermostatic Valve Body. If Outer
Cone Lights, Replace Thermostatic
Head and Sensor Assembly.
-- OR --
B. If Outer Combustion Cone still does
not Light, Adjust Pressure Valve
According to Instructions in Owner’s
Manual.
-- OR --
C. Replace Thermostatic Head
Valve Body.
Are There
Blockages in
Gas Hose, Piping,
Tubing Assembly, Injector
Body or Venturi
Tube?
Remove the Component
and Clean It.
Yes
No