Lennox Hearth DIRECT-VENT SYMMETRY SERIES SYM-35N - Manual (Page 25)

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NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
TROUBLESHOOTING THE SYMMETRY FIREPLACE
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION
Check that the wall switch plate is set to remote (if remote was used).
Operate the fireplace from the wall plate switch.
Replace remote and/or receiver batteries.
Check the gas supply and gas shutoff valves.
Check/replace back-up batteries behind the wall plate.
Check building circuit breakers to ensure power is on to the fireplace.
Check the gas supply and gas shutoff valves.
Check control compartment for any obvious loose wiring (call a service
technician if required).
Check control compartment for any obvious loose wiring (call a service
technician if required).
Purge gas line of air (call a service technician if required).
Check the gas supply and gas shutoff valves.
Check control compartment for any obvious loose wiring (call a service
technician if required).
Call for a service technician.
Call for a service technician.
Properly position the logs as detailed in the fireplace Log Placement Guide.
Open the air shutter by pulling on the air shutter adjustment lever.
A. Remote is not functioning
properly.
B. Gas is not reaching the
fireplace.
C. Unit is not receiving
power.
A. Gas is not reaching the
fireplace.
B. Loose wires to the valve.
C. Loose wires to ignition
module.
D. Air in the gas line.
A. Gas is not reaching the
fireplace.
B. Loose wires to the valve
or ignition module.
C. Pilot flame is not engulf-
ing the sensor.
D. Obstructed vent system.
A. Excessive flame impinge-
ment on the logs.
B. Improper air shutter
opening.
1. Nothing happens when
the fireplace is turned
On/Off.
2. The main burner does
not light and the igniter
is sparking.
3. The main Burner comes
on but then goes out.
4. Soot is present on the
logs and glass.
Note: Before troubleshooting, be sure that the appliance main line gas shut-off valve and the wall switch are in the “ON”
position. The following troubleshoots the fireplace only to an elementary level. For detailed Remote and Ignition System
troubleshooting, refer to the instructions provided with the remote.
Important: Detailed valve system troubleshooting should only be accomplished by a qualified service technician.