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manual abstract
Follow 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. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Heater produces a clicking/ticking noise 1. Metal expanding while heating or con1. This is common with most heaters. If just after burner is lit or shut off tracting while cooling noise is excessive, contact qualified service person Heater produces unwanted odors 1. Heater burning vapors from paint, hair 1. Ventilate room. Stop using odor causspray, glues, etc. (see IMPORTANT ing products while heater is running statement above) 2. Gas leak. See Warning statement at 2. Locate and correct all leaks (see Check- top of page ing Gas Connections, page 13) Heater shuts off in use (ODS operates) 1. Not enough fresh air is available 1. Open window and/or door for ventilation 2. Low line pressure 2. Contact local natural gas company 3. ODS/pilot is partially clogged 3. Clean ODS/pilot (see Cleaning and Maintenance, page 19) Gas odor even when control knob is in OFF 1. Gas leak. See Warning statement at 1. Locate and correct all leaks (see Check- position top of page ing Gas Connections, page 13) 2. Control valve defective 2. Replace control valve Gas odor during combustion 1. Foreign matter between control valve 1. Take apart gas tubing and remove for- and burner eign matter 2. Gas leak. See Warning statement at 2. Locate and correct all leaks (see Check- top of page ing Gas Connections, page 13) 18 104431 OWNER’S MANUAL CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before cleaning. CAUTION: You must keep control areas, burner, and circulating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more frequent cleaning due to excessive lint from carpeting, pet hair, bedding material, etc. CLEANING BURNER INJECTOR HOLDER AND PILOT AIR INLET HOLE The primary air inlet holes allow the proper amount of air to mix with the gas. This provides a clean burning flame. Keep these holes clear of dust, dirt, and lint. Clean these air inlet holes prior to each heating season. Blocked air holes will create soot. We recommend that you clean the unit every 2,500 hours of operation or every three months. We also recommend that you keep the burner tube and pilot assembly clean and free of dust and dirt. To clean these parts we recommend using compressed air no greater than 30 PSI. Your local computer store, hardware store, or home center may carry compressed air in a can. You can use a vacuum cleaner in the blow position. If using compressed air in a can, please follow the directions on the can. If you don't follow directions on the can, you could damage the pilot assembly. 1. Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes. 2. Inspect burner, pilot, and primary air inlet holes on injector holder for dust and dirt (see Figure 29). 3. Blow air through the ports/slots and holes in the burner. 4. Check the injector holder located at the end of the burner tube again. Remove any large particles of dust, dirt, lint, or pet hairs with a soft cloth or vacuum cleaner nozzle. 5. Blow air into the primary air holes on the injector holder. 6. In case any large clumps of dust have now been pushed into the burner repeat steps 3 and 4. Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in the pilot assembly. There is a small pilot air inlet hole about two inches from where the pilot flame comes out of the pilot assembly (see Figure 30). With the unit off, lightly blow air through the air inlet hole. You may blow through a drinking straw if compressed air is not available. Injector Holder Ports/Slots Burner Tube Holes Primary Air Inlet Figure 29 - Injector Holder On Outlet Burner Tube Pilot Assembly Pilot Air Inlet Hole Figure 30 - Pilot Inlet Air Hole CABINET Air Passageways • Use a vacuum cleaner or pressurized air to clean. Exterior • Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabinet to remove dust. REPLACEMENT PARTS Note:Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. PARTS UNDER WARRANTY Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA International’s Technical Service Department at 1-800-323-5190 for referral information. When calling DESA International, have ready • your name • your address • model and serial numbers of your heater • how heater was malfunctioning • type of gas used (propane/LP or natural gas) • purchase date Usually, we will ask you to return the defective part to the factor...