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DVB4136 Direct Vent Gas Fireplace
20012322
Continuous PIlot
Off/On Switch
Remote/Off
Switch
Adjustment
“S” Pilot Connection
“I” Pilot
Connection
FP1762
Figure 58: AF4000
MOD Module Right
Side
Learn Button
AUX Connection
FP1763
Figure 59: AF4000
MOD Module Left Side
Pilot will not light/stay lit
• Verify the gas supply is turned on.
• Verify the receiver is receiving the signal from the transmitter by listening for a
beep from the receiver when ON is pressed on the transmitter. If you do not hear
a beep, ensure the module has learned the transmitter (see above).
• Ensure the orange lead from the pilot assembly igniter is securely connected to
the terminal labeled “I” and the white lead from the flame rectification sensor is
securely connected to the terminal labeled “S” on the control module. (Fig. 58)
• Make sure the orange and white leads from the module are securely connected to
the terminals labeled “PILOT” on the valve body. (Fig. 61)
• Ensure the black GROUND wire is securely connected to an appropriate metal
portion of the valve or pilot assembly. A proper ground is essential to spark
igniter operation.
• Make certain the pilot flame is in contact with the flame rectification sensor on the
pilot assembly. This valve is equipped with a pilot flame adjustment screw. (Fig.
61) If the pilot flame is too small it will not contact the flame rectification sensor
and will not complete the safety circuit.
• Ensure the CONTINUOUS PILOT switch on the control module (Fig. 58) is set to
OFF.
• Verify the gas supply is turned on.
• Ensure the pilot flame will ignite. If not, see pilot flame troubleshooting above.
• Make sure the green and white leads from the module are securely connected to
the terminals labeled “MAIN: on the valve body. (Fig. 61)
• Make certain the pilot flame is in contact with the flame rectification sensor on the
pilot assembly. This valve is equipped with a pilot flame adjustment screw. (Fig.
61) If the pilot flame is too small it will not contact the flame rectification sensor
and will not complete the safety circuit.
• Ensure the pilot flame is properly located to ignite the main flame.
Pilot flame is always on/ will
not extinguish
Main flame will not light
Troubleshooting AF4000 Valve (continued)