Full Product Manual

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11160108-01C
TROUBLESHOOTING
WARNING: High voltage! Unplug heater before servicing.
FAULT CONDITION
Heater ignites but control assembly shuts heater off before running out
of fuel.
DISPLAY POSSIBLE CAUSE REMEDY
Display shows C4 Flame
Extinguished.
1. Not enough fuel in tank to
maintain combustion.
2. Water in fuel tank.
3. Pump pressure incorrect.
4. Dirty fuel lter.
5. Obstruction in nozzle.
6. Photocell assembly not prop-
erly installed.
7. Dirty photocell lens.
8. Defective photocell.
1. Fill tank. See Fuels, page 6.
Restart heater
2. Drain and flush fuel tank
with kerosene. See Storing,
Transporting or Shipping,
page 8.
3. See Pump Pressure Adjust-
ment, page 14.
4. See Fuel Filter, page 14.
5. See Nozzle Assembly, page
16.
6. Make sure photocell boot is
fully seated in bracket.
7. Clean photocell lens.
8. Replace photocell.
Display shows C5 Im-
proper Flame.
1. Pump pressure too high.
2. Heater inlet or outlet is cov-
ered and unit is not getting
enough air for combustion.
3. Fan set screw is loose.
1. See Pump Pressure Adjust-
ment, page 14.
2. Unplug heater. Remove ob-
structions or loose material
from heater inlet or outlet.
3. Tighten fan set screw to
40-50 in-lbs. See service
procedures on page 13.
Display shows C6 Flame
Change.
1. Heater inlet suddenly blocked
by debris.
2. Water in fuel tank
3. Dirty fuel lter
4. Obstruction in nozzle
5. Fan set screw is loose
1. Unplug heater. Remove ob-
structions or loose material
from heater inlet.
2. Drain and flush fuel tank
with kerosene. See Storing,
Transporting or Shipping,
page 8.
3. See Fuel Filter, page 14.
4. See Nozzle Assembly, page
16.
5. Tighten fan set screw to
40-50 in-lbs. See Service
Procedures on page 13.