Lanair HI140 User Manual
Page 49
SECTION 17 CONTINUED
2.
Install a jumper wire between the two F-F terminals.
3.
Push reset button for 2 seconds.
4.
Turn room thermostat up so that it calls for heat.
5.
Disable the air operated fuel valve.
6.
To activate the oil primary momentarily disconnect one end of the jumper wire
on the F-F terminals. The burner will attempt to fire.
7.
IMPORTANT
remove the jumper wire when testing is complete, and replace
the cad cell wires. Do not run the heater with the cad cell wires
disconnected.
Cad Cell Wires
Thermostat
Wires
17.3 Disabling the air operated fuel valve:
Note: Most trouble shooting tests will require the air operated fuel valve to be disabled, to
do this:
1.
Adjust the heater air filter/regulator to -0- PSI.
17.4 Vacuum Gauge reading hints:
No reading 0-1 HG,
1.
Pump not operating.
2.
Pump air locked and needs priming. Refer to section 14.
3. Vacuum
leak:
a.
Pump shaft seal
d.
Suction strainer gaskets
b.
Pump cover gasket
e.
Low fuel level in tank
c.
Pipe connections suction side
4.
Strainer in pump cover severely plugged.
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