14103548GAS RESIDENTIAL HEATERSWhen gas pressure is too low• pilot will not stay lit• burner(s) will have delayed ignition• heater will not produce specified heat• propane/LP gas supply may be lowTROUBLESHOOTINGContinuedTECHNICALSERVICEYou may have further questions about in-stallation, operation, or Trouble Shooting.If so, contact DESA International’s Techni-cal Service Department at 1-800-323-5190.WARNING: 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 in yourbuilding.• Immediately call your gas supplier from a neighbor’s phone. Follow thegas supplier’s instructions.• If you cannot reach your gas supplier, call the fire department.IMPORTANT: Operating heater where im-purities in air exist may create odors. Clean-ing supplies, paint, paint remover, cigarettesmoke, cements and glues, new carpet ortextiles, etc., create fumes. These fumesmay mix with combustion air and createodors.OBSERVEDPROBLEMHeater produces unwanted odorsPOSSIBLE CAUSE1. Heater burning vapors from paint, hairspray, glues, etc. (SeeIMPORTANTstatement above2. Low fuel supply3. Gas leak. See Warning statement at topof pageREMEDY1. Ventilate room. Stop using odor-causingproducts while heater is running2. Refill supply tank3. Locate and correct all leaks (seeChecking Gas Connections, page 9)1. Not enough fresh air is available2. Low line pressure3. ODS/pilot is partially clogged1. Refer to Air for Combustion andVentilation requirements (page 3)2. Contact local propane/LP gas company3. Clean ODS/pilot (see Cleaning andMaintenance, page 15)Gas odor even when control knob is in OFFposition1. Gas leak. See Warning statement at topof page2. Control valve defective1. Locate and correct all leaks (seeChecking Gas Connections, page 9)2. Replace control valveGas odor during combustion 1. Foreign matter between control valveand burner2. Gas leak. See Warning statement at topof page1. Take apart gas tubing and removeforeign matter2. Locate and correct all leaks (seeChecking Gas Connections, page 9)Moisture/condensation noticed on windows 1. Not enough combustion/ventilation air 1. Refer to Air for Combustion andVentilation requirements (page 3)SERVICE HINTSWhen gas quality is bad• pilot will not stay lit• burner(s) will produce flames and soot• heater will backfire when litYou may feel your gas pressure is too low orgas quality is bad. If so, contact your localpropane/LP gas supplier.Heater shuts off in use (ODS operates)