Potential Causes For Flame Sensor Not To Prove; Venting Related Issues; Gas Supply Issues - SimTech ProFlame 1 Troubleshooting Manual

Diagram 13 CONTINUITY TEST (Ohms)
Confirm the flame sensor has continuity. If there is no continuity or high resistance replace it. If continuity is
good replace the DFC.
Diagram 13A

POTENTIAL CAUSES FOR FLAME SENSOR NOT TO PROVE

Venting Related Issues (See each manual for specific information relating to tested and approved venting
systems)
● Partial Intake Liner - exhaust and intake liner must be of approved size and run continuous to termination
● Unapproved Termination
● Unapproved Vent Configuration
● Enclosed Termination
● Incorrect Vent Restrictor Setting
● Crossed Liners
● RTV Sealant on Venting (Do not use RTV sealant on units)
● If Liners have large sags pull liners tight and keep run as straight as possible
Gas Supply Issues (See each units manuals for required pressure)
● Ensure Sediment Trap (Drip Leg) is installed in supply line prior to the gas valve. SIT requirement for iron pipe.
● Measure Inlet Gas Pressure with unit off. Make note and then measure gas pressure with the unit turned on (call for
heat)
● Measure Outlet Gas Pressure with unit on(call for heat)
● If inlet working pressure is to low check for blockage or incorrect gas line size
● If outlet working pressure is incorrect and inlet pressure is correct check the following:
● Valve Modulator - If an electronic modulator was added see diagram 27-28 to troubleshoot the modulator
● Converted Units - ensure factory diaphragm and spring have been removed
● Cold Vents/ Cold Start - unit may need to be cycled again to overcome the cold vent/cold start. Turn unit off then back
on to cycle the unit again
● Misplaced logs/glass or stone - check manual for correct certified media placement
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Flame Sensor
SUREFIRE ELECTRONIC IGNITION SYSTEM
S.I.T. PROFLAME 1 TROUBLESHOOTING
SimTech Proflame I