Lanair HI140 - Manual (Page 61)

Supplemental Trouble Shooting Guide Continued
Symptom Possible Cause Corrective Action
A. Burner will not start.
1. Main electrical power 1. Reset Breaker.
circuit breaker tripped.
2.
Service disconnect 2. Turn switch on or
switch off or fuse blown. replace fuse.
3.
Thermostat turned down/ 3. Turn thermostat up,
improperly installed/ check wires/test
defective. components/replace.
4.
Oil primary safety 4. Reset/test components,
tripped/defective. replace if needed.
5. Too much light showing 5. Eliminate light to cad
on cad cell/defective. cell. Test component.
6.
Fan/Limit control reached 6. Check fan/limit control
. high/limit, or is defective settings (See page
13B) or test components.
B. Burner attempts to
1. Low oil in supply tank or 1. Fill tank, or drain and
fire, but does not contaminated fuel. clean tank.
establish a flame.
2. Plugged or worn nozzle. 2. Clean or replace.
3.
Fuel pressure gauge 3. See section 7, Page 12.
fluctuating/pumping system.
4.
Preheater switch is turned off 4. Turn switch on or test
off or defective, or defective switch and cartridge
cartridge heater. cartridge heater.
5.
Transformer/electrodes not 5. Test transformer/look
sparking. for shorts & repair.
Replace electrodes/
transformer.
6.
No air pressure/defective 6. Turn compressor on/test
regulator/defective solenoid. regulator/solenoid.
Replace defective
components.
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