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3 - Thermostat Closed, Fan & Glo-Bar Operate.
After 45 Seconds Glo-Bar Shuts Off, No Ignition.
3.1
Be sure that the gas valves inside and outside of the heater are turned to the ON position.
3.2
Locate and confirm that the gas orifice is not plugged with dirt, spider webs or rust.
3.3
Turn off the gas to the heater and *bypass both the Burner & Exhaust Pressure Switches (pg. 19, #6). Test
the voltage coming from the Circuit Board to the Gas Valve (pg. 8, pic. 6) using a volt meter. If there is 120
volts, the gas valve is faulty. If there is less than 102 volts or no voltage at all, the circuit board is faulty.
3.4
The inlet pressure entering the system may be too high. The maximum value for both natural and propane is
14" W.C.P. Correct this problem by either adjusting the building's regulator down to 14" W.C.P. or by using
step-down regulators in the building's piping system.
NOTE: THE GAS VALVE IS ONLY RATED FOR 1/2 POUND (14 INCHES) OF PRESSURE.
IF USING A HIGH-PRESSURE REGULATOR, BE SURE IT IS LOCKING UP PRIOR TO THE
INLET PRESSURE REACHING 1/2 POUND.
Switches Light is Energized. No Glo-Bar Energization.
Check the Circuit Board (pg. 8, pic. 3). Use a volt meter to measure the voltage the circuit board is sending to the
glo-bar. This is done by hooking the voltmeters probes to the black and white wires leading from the circuit board
to the glo-bar. If the measurement is 102V or less, the circuit board is faulty. If it measures 120V, the glo-bar is
faulty.
NOTE: Do not unplug the glo-bar.
Refer to warnings on cover prior to servicing the unit. Bypass safety pressure switches for supervised troubleshooting purposes only.
*Do not leave switches bypassed while the heater is unattended or for normal operations.
(This step is applicable for DX & XTS models only)
3 - Thermostat Closed, Fan Operates.
(This step is applicable for the DX-2 models only)
Consult Detroit Radiant Products for further technical information
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Troubleshooting
