Lanair HI140 User Manual
Page 60
SUPPLEMENTAL TROUBLESHOOTING GUIDE
Chart #1
Symptom
Possible Cause
Corrective Action
A. Burner will not start.
1. Main power turned off,
1. Check disconnect.
or
disconnected.
Using a multi-meter
make sure you have
120 V at junction box.
2.
Thermostat
defective
2.
Re-install
thermostat.
Make sure thermostat
is installed properly
(See Page # 17).
3.
Oil
Primary
defective
or
3. Test oil primary, or
safety
switch
of oil primary.
reset.
Chart #2 & #3
B. Burner attempts to fire,
1. Fuel supply low, or
1. Fill supply tank if low.
and has a poor flame,
contaminated.
Drain if contaminated.
or no flame.
2. Supply pump defective or
2. Test supply pump,
improperly
installed.
check fuel lines for
No fuel to the nozzle.
suction leaks. Install
supply pump and
supply lines as per
page
#11
to
#13c.
3.
Air
regulator
or
air
solenoid
3. Test air regulator, and
defective.
solenoid, if defective
replace.
4. Ignition transformer
4. Test transformer should
defective.
have 120 V input, and
10,000
V
output
(metal
case) 14,000 V (plastic
case).
5. Air preheater diaphragm
4. Clean air preheater
defective.
and replace diaphragm.
Page 44