Desa Tech HEATERS OWNER'S MANUAL Electric Heater User Manual


 
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110098-01G
10
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
Heater ignites, but flame-out
control shuts off heater after a
short period of time
Heater burns, but puffs of smoke
can be seen
Heater does not burn steady
Heater burns with odor
Heater smokes continuously
POSSIBLE CAUSE
1. Wrong pump pressure
2. Dirty fuel filters
3. Dirt in nozzle
4. Dirty photocell lens
5. Open or damaged photocell
6. Bad flame-out control
7. Damaged fan switch
1. Wrong pump pressure
2. A) Heater almost out of fuel
B) Water condensation in fuel
tank
C) Wrong fuel
3. Dirty fuel filters
4. Air leak in suction system
5. Dirty nozzle
6. Low voltage causing motor to
operate below rated speed
7. Loose fuel line
REMEDY
1. Adjust pump pressure (see
Pump Pressure Adjustment
sections, page 12)
2. Clean fuel filters (see Fuel
Filters, page 14)
3. Replace nozzle (see Nozzle
,
page 11)
4. Clean photocell lens with
clean cotton swab
5. Replace photocell
6. Replace flame-out control
7. Replace fan switch
1. Adjust pump pressure (see
Pump Pressure Adjustment
sections, page 12)
2. A) Add fuel to tank
B) Check fuel tank for bubbles
of water in bottom. If found,
remove fuel (see Storing,
Transporting or Shipping,
page 6). Clean tank and fuel
filters (see Fuel Filters, page
14). Fill with clean fuel
C) Remove wrong fuel (see
Storing, Transporting or Ship
-
ping, page 6). Clean tank and
fuel filters (see Fuel Filters,
page 14. Fill with correct fuel
3. Clean fuel filters (see Fuel
Filters, page 14)
4. Tighten all fuel line connections
(see Fuel Lines, page 13)
5. Replace nozzle (see Nozzle
,
page 11)
6. Check voltage at heater. Volt
-
age at heater should be not
less than 90% of rated voltage
(108V minimum for 120V
heaters)
7. Check and tighten all fuel line
connections (see Fuel Lines,
page 13)