Full Product Manual

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160108-01C10
TROUBLESHOOTING
WARNING: High voltage! Unplug heater before servicing.
FAULT CONDITION
Motor starts and runs but heater does not ignite.
DISPLAY POSSIBLE CAUSE REMEDY
Display shows C9 Low
Pressure.
1. Air line or tting leaking.
2. Pump cover leaking.
Pump cover screws loose.
3. Pump cover gasket leaking.
Pump output lter clogged.
4. Pump pressure is low.
5. Pump pressure is low. Can-
not adjust to specication.
1. Unplug heater. Check air
lines and ttings for leaks.
Correct all leaks.
2. Unplug heater. Check pump
cover for leaks. Tighten pump
cover screws to 10-20 in-lbs.
3. Unplug heater. Replace pump
output lter. See Pump Pres-
sure Adjustment page 14.
4. Adjust pump pressure to
specication. See Pump Pres-
sure Adjustment, page 14.
5. Service pump, see page 17.
Display shows C3 No
Ignition.
1. No fuel in fuel tank.
2. Water in fuel tank.
3. Pump pressure incorrect.
4. Dirty Fuel Filter.
5. Obstruction in Nozzle.
6. Bad electrical connection
between ignitor and control.
7. Blown control fuse.
8. Defective ignitor.
9. Defective ignition control as-
sembly.
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. Check electrical connections.
See Wiring Diagram, page 18.
7. Replace control fuse, see
page 17.
8. Replace ignitor and control
fuse, see pages 14 & 17.
9. Replace ignition control as-
sembly.