L.B. White 125-210K Tradesman - Manual (Page 21)

Troubleshooting
Symptom Possible (Cause(s)) Corrective Action
Heater ignites but MAIN PCB
assembly shuts heater off after a
short period of time. (Indicator
display indicates “E1”)
Heater will not ignite but motor
runs for a short period of time.
room temp. display indicates
“E1”)
Fan does not turn when heater is
plugged in and power switch was
in the “ON” position. (Indicator
room temp. display indicates “E2”)
room temp. display indicates “E3”)
Heater will not turn-on (Indicator
Lamp is off)
1. Wrong pump pressure
2. Dirty
a ir output, a ir Intake or l int lilter
3. Dirty f uel f ilter
4. Dirt in n ozzle
5. Dirty p hotocell lens
6. Photocell a ssembly not p roperly I nstalled (not
7. Bad electrical connection between photocell and
MAIN PCB
a ssembly.
8. Defective photocell
1. No fuel in tank
2. Wrong pump pressure
3. Carbon deposits on spark plug and/or improper
gap
5. Dirt in n ozzle
6. Water in fuel tank
7. Bad electrical connection between igniter and
MAIN PCB Assembly
8. Igniter wire is not attached to spark plug
1. Thermostat setting is too low
2. Bad electrical connection between motor and MAIN
PCB Assembly
3. Jammed/shattered rotor 3. See Servicing Pump, page 12.
1. Sensor f ailure
1. Thermostat switch failure
2. Temperature limit safety device is overheated
3. No electrical power
4. Blown fuse
5. Bad electrical connection between temperature
limit safety device and PCB board
1. See Pump Pressure Adjustment, page 16
2. See Air Output, Air Intake and Lint Filters, page 13
3. See Fuel Filter, page 16
4. See Nozzle, page 14
5. Clean Photocell Lens, page 15
6. Make sure photocell boot is properly seated in
bracket, Page 15
7. Check electrical components. See Wiring Diagrams,
page 18
8. Replace Photocell, page 15
1. Fill tank with kerosene
2. See Pump Pressure Adjustment, page 16
3. See Spark Plug, page 15
4. See Fuel Filter, page 16
5. See Nozzle, page 14
6. Flush fuel tank with clean kerosene, page 12
7. Check electrical components. See Wiring Diagram,
page 18
8. Attach igniter to spark plug. See Spark Plug, page 15
1. Turn thermostat control knob to a higher setting
2. Check electrical connections. See Wiring Diagram, page 18
1. Replace sensor. See Wiring Diagram, page 18
1. Replace MAIN PCB
2. Turn power switch to “OFF” and allow to cool (about 10 min.)
3. Check to insure heater cord and extension cord are
plugged in. Check power supply
4. Replace safety fuse in PCB board. See Replacing
Fuse, page 17
5. Check electrical connections. See Wiring Diagrams page 18
20
9. Cracks in e nd filter cover.
10. Defective r otor& v ane.
11. Splits/cracks on a ir line.
12. Air leaks around the pump area.
9. Check for cracks in e nd filter cover.
Replace if cracked,page 13
10. Check r otor & v ane condition.
Replace if chipped,cracked,page 12
11. Check a ir line for splits/cracks.
Replace if splited,cracked,page 13
12. Check a ir leaks around the pump area,page 13