Desa CGMFN Owner's Operation And Installation Manual

Contents

www.desatech.com119315-01A TRoUBlEshooTiNGContinuedObSERVED PRObLEMDelayed ignition of burnerBurner backfiring during com-bustionSlight smoke or odor during initialoperationFireplace produces a whistlingnoise when burner is litWhite powder residue formingwithin burner box or on adjacentwalls or furnitureMoisture/condensation noticedon windowsPOSSIbLE CAUSE1. Manifold pressure is too low2. Burner orifice is clogged1. Burner orifice is clogged ordamaged2. Damaged burner3. Gas regulator defective4. Inlet gas pressure is too low1. Residues from manufacturingprocesses and log curing2. Not enough air3. Gas regulator defective1. Turning control knob to HIposition when burner is cold2. Air in gas line3. Air passageways on fireplaceblocked4. Dirty or partially cloggedburner orifice1. When heated, vapors fromfurniture polish, wax, carpetcleaners, etc. may turn intowhite powder residue1. Not enough combustion/ven-tilation airREMEDY1. Contact local natural or pro-pane/LP gas company2. Clean burner (see Cleaningand Maintenance, page 24) orreplace burner orifice1. Clean burner (see Cleaningand Maintenance, page 24) orreplace burner orifice2. Replace damaged burner3. Replace gas regulator4. Contact local natural or pro-pane/LP gas company1. Problem will stop after a fewhours of operation2. Check burner for dirt anddebris. If found, clean burner(see Cleaning and Mainte-nance, page 24)3. Replace gas regulator1. Turn control knob to LOposition and let warm up fora minute2. Operate burner until air isremoved from line. Have gasline checked by local naturalgas company3. Observe minimum installa-tion clearances (see pages 10through 13)4. Clean burner (see Cleaningand Maintenance, page 24) orreplace burner orifice1. Turn fireplace off when usingfurniture polish, wax, carpetcleaners or similar products1. Refer to Air for Combustionand Ventilation requirements(page 6)