www.desatech.com114184-01A 7SERVICINGA hazardous condition may result if a heater isused that has been modified or is not functioningproperly. When the heater is working properly:• The emmitter screen is glowing bright orang-red.• There are no flames above the burner.• The flame is burning on the surface of the screenand not inside the burner (flashback).• There is no strong disagreeable odor, eye burn-ing or other physical discomfort.• There is no smoke or soot internal or externalto the heater.• There are no unplanned or unexplained shutdowns of the heater.The parts lists and exploded view show the heateras it was constructed. Do not use a heater which isdifferent from that shown. In this regard, use onlythe hose, regulator and cylinder connection fitting(called a POL fitting) supplied with the heater.IMPORTANT: For this heater, the regulator mustbe set as shown in Specifications, page 2. If thereis any uncertainty about the regulator setting,have it checked.TECHNICAL SERVICEA heater which is not working right must be re-paired, but only by a trained, experienced serviceperson. To find the service center closest to you,or if you have further questions about this heater,contact DESA Heating Productsʼ Technical ServiceDepartment at 1-866-672-6040. When calling,please have your model and serial numbers ofyour heater ready.You can also visit DESA Heating Productsʼ Techni-cal Service web site at www.desatech.com.You may also obtain in-warranty or out-of-war-ranty service by taking the product to your localservice center.REPLACEMENT PARTSWARNING: Use only originalreplacement parts. This heatermust use design-specific parts.Do not substitute or use genericparts. Improper replacementparts could cause serious or fa-tal injuries. This will also protectyour warranty coverage for partsreplaced under warranty.PARTS UNDER WARRANTYContact authorized dealers of this product. If theycanʼt supply original replacement part(s), eithercontact your nearest Parts Central or call DESAHeating Productsʼ Technical Service Departmentat 1-866-672-6040.When calling DESA Heating Products, have ready• your name• your address• model number of your heater• how heater was malfunctioning• purchase datePARTS NOT UNDER WARRANTYContact authorized dealers of this product. Ifthey canʼt supply original replacement part(s),either contact your nearest Parts Central (listed inAuthorized Service Center booklet) or call DESAHeating Products at 1-866-672-6040 for referralinformation.When calling DESA Heating Products, have ready• model number of your heater• the replacement part number