Desa CD32M(-1)(-2), CD42M, CD36M(-1)(-2) Observed Problem Possible Cause Remedy

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OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Pilot will not stay lit after carefully following lighting instructions.

Pilot lit but no flame on the burner.

Frequent pilot outage problem.

Defective pilot generator (thermocouple).

Remote or wires defective.

Thermopile/Thermocouple not generating sufficient millivoltage.

Plugged burner orifice.

Thermocouple not generating sufficient millivoltage.

Pilot flame maybe too low or blowing (high) causing the valve safety to drop out.

Check pilot flame. It must impinge on thermocouple.

Clean or adjust pilot for maximum flame impingement on thermocouple.

Ensure that the connection between the valve and thermocouple are tight and secured.

Check remote wires for proper connections. Jumper wire across terminals at remote control, if burner comes on, replace defective remote. If okay, jumper wire across remote control at valve, if burner comes on, wires are faulty or connections are bad.

Check thermopile with millivolt meter. Take reading at thermopile terminals of gas valve. Should read 325 millivolts minimum with remote control off. Replace thermopile if reading is below specified minimum.

Check burner orifice for stoppage and remove.

Check thermocouple with millivolt meter. Take reading at thermocouple terminals of gas valve. Should read 18 millivolts minimum with remote control off. Replace faulty thermocouple if reading is below specified minimum.

Clean and/or adjust pilot flame for maximum flame impingement on thermocouple.

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Contents REV D Desa InternationalSave this Book Industrial DriveContents Selecting Location For Your SafetyCheck Local Codes Before Installing this Fireplace IntroductionVent Clearances Minimum Clearances to CombustiblesMantel Clearances Vent Termination ClearancesVent Pipe and Termination Clearances Vent Installation Instructions Vent TerminationOffset Elbow Framing Framing DimensionCorner Installation Electrical HOOK-UP and Remote Receiver DiagramGAS Supply Testing GAS Line HOOK-UPGAS Control Valve Sediment Trap SpecificationsPilot Adjustment Pilot AssemblyFor Models CD32M and CD36M Series LOG InstallationGlass Panel Removal LouversDecorative Facing Burner Flame AdjustmentWiring Diagram Burner FlamePage Pilot Orifice Conversion KITFigure a Face Extension for Model CD32M onlyObserved Problem Possible Cause Remedy Illustrated Parts Breakdown Models CD32M and CD36M Series Illustrated Parts Breakdown Model CD42M Description QTY Illustrated Parts ListAccessory and Replacement Parts