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Dayton Operating Instructions and Parts Manual
22
Dayton Portable
Oil-Fired Heaters
®
101421
Troubleshooting Chart
Possible Cause(s)
Corrective Action
Never service heater while it is plugged in, operating, or hot.
Severe burns and electrical shock can occur.
Heater ignites, but flame-out control
shuts off heater after a short period of
time
1. See Pump Pressure Adjustment, page 7
2. See Air Output, Air Intake and Lint
Filters, page 7
3. See Fuel Filter, page 7
4. See Nozzle, page 9
5. Clean photocell lens
6. Replace flame-out control
1. Wrong pump pressure
2. Dirty air output, air intake and lint filters
3. Dirty fuel filter
4. Dirt in nozzle
5. Dirty photocell lens
6. Bad flame-out control
Symptom
Heater will not ignite, but motor runs
for a short period of time
1. Wrong pump pressure
2. Carbon deposits on spark plug and/
or improper gap
3. Dirty fuel filter
4. Dirt in nozzle
5. Water in fuel tank
6. Electronic ignitor not
grounded
7. Bad electronic ignitor
1. See Pump Pressure Adjustment, page 7
2. See Spark Plug, page 8
3. See Fuel Filter, page 7
4. See Nozzle, page 9
5. Drain and flush fuel tank with clean
kerosene. See Storing, Transporting,
or Shipping, page 11
6. Make sure electronic ignitor mount-
ing is tight
7. Replace electronic ignitor
High Voltage!
Motor does not start when heater is
plugged in, fan rotates slowly or does
not turn
1. Flame-out control not reset
2. Solid state relay not
allowed to reset
3. Binding pump rotor
1. Press flame-out control reset button
2. Wait two minutes before trying to
restart heater
3. If fan is hard to turn, see Pump
Rotor, page 10