Desa Master B350CEA Owner's Manual

Contents

13103807OBSERVEDPROBLEMHeater ignites, butburner controlshuts off heaterafter a short periodof time.1. Wrong pump pressure2. Dirty fuel filters3. Dirt in nozzle4. Dirty photocell lens5. Open or damagedphotocell6. Bad burner control7. Damaged fan switch1. Adjust pump pressure (seePump Pressure Adjustment,page 16).2. Clean fuel filters (see FuelFilters, page 17).3. Replace nozzle (see Nozzle,page 15).4. Clean photocell lens withclean, soft cloth.5. Replace photocell.6. Replace burner control.7. Replace fan switch.1. Wrong pump pressure2. A) Heater almost out offuelB) Water condensationin fuel tankC) Wrong fuel3. Dirty fuel filters4. Air leak in suctionsystem5. Dirty nozzle6. Low voltage causingmotor to operate belowrated speed7. Loose fuel line1. Adjust pump pressure ( seePump Pressure Adjustment,page 16).2. A) Add fuel to tank.B) Check fuel tank forbubbles of water in bottom. Iffound, remove fuel (seeStorage, page 9). Clean tankand fuel filters (see FuelFilters, page 17). Fill withclean fuel.C) Remove wrong fuel (seeStorage, page 9). Clean tankand fuel filters (see FuelFilters, page 17). Fill withcorrect fuel.3. Clean fuel filters (see FuelFilters, page 17).4. Tighten all fuel line connec-tions (see Fuel Lines, page16).5. Replace nozzle (see Nozzle,page 15).6. Check voltage at heater.Voltage at heater shouldnever be less than 198 volts.7. Check and tighten all fuel lineconnections (see Fuel Lines,page 16).Heater burns, butpuffs of smoke canbe seen.Heater does notburn steady.Heater burns withodor.Heater smokescontinuously.TROUBLE-SHOOTINGContinuedPOSSIBLE CAUSE REMEDY