www.desatech.com 19116307-01ATROUBLESHOOTINGContinuedWARNING: If you smell gas• Shut off gas supply.• Do not try to light any appliance.• Do not touch any electrical switch; do not use any phone inyour building.• Immediately call your gas supplier from a neighbor’s phone. Fol-low the gas supplier’s instructions.• If you cannot reach your gas supplier, call the fire department.IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies,paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes.These fumes may mix with combustion air and create odors.POSSIBLE CAUSE1. Heater burning vapors frompaint, hair spray, glues, etc.See IMPORTANT statementabove2. Low fuel supply (propane/LPgas)3. Gas leak. See Warningstatement at top of page1. Gas leak. See Warningstatement at top of page2. Control valve defective1. Foreign matter between con-trol valve and burner2. Gas leak. See Warningstatement at top of page1. Not enough combustion/ven-tilation airREMEDY1. Ventilate room. Stop usingodor causing products whileheater is running2. Refill supply tank3. Locate and correct all leaks(see Checking Gas Connec-tions, page 11)1. Locate and correct all leaks(see Checking Gas Connec-tions, page 11)2. Replace control valve1. Take apart gas tubing andremove foreign matter2. Locate and correct all leaks(see Checking Gas Connec-tions, page 11)1. Refer to Air for Combustionand Ventilation requirements(page 5)OBSERVED PROBLEMHeater produces unwantedodorsGas odor even when controlknob is in OFF positionGas odor during combustionMoisture/condensation noticedon windowsTECHNICAL SERVICEYou may have further questions about installation,operation or troubleshooting. If so, contact DESAHeating Productsʼ Technical Service Departmentat 1-866-672-6040. When calling please have yourmodel and serial numbers of your heater ready.You can also visit DESA Heating Productsʼ techni-cal service web site at www.desatech.com.SERVICE PUBLICATIONSYou can purchase a service manual from the addresslisted on the back page of this manual. Send a checkfor $5.00 payable to DESA Heating Products.SERVICE HINTSWhen Gas Pressure Is Too Low• pilot will not stay lit• burner will have delayed ignition• heater will not produce specified heat• propane/LP gas supply may be lowYou may feel your gas pressure is too low. If so, con-tact your local natural or propane/LP gas supplier.