Fastrax Hellfire 900, Installation, Operation & Maintenance Instructions Manual

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I.4 Flame Rod and Spark Igniter Removal
If the flame rod (16) or spark igniter (15) requires inspection
or replacement, remove them as follows:
1. Gain access to the burner (17) by first removing the
combustion chamber access panel.
2. The flame rod is to the left of the spark igniter. Gently
pull the wire from the terminal. Use a 7/8” deep socket
to unscrew and remove the flame rod. Apply a high
temperature anti-seize compound to threads prior to
reinstallation.
3. The spark igniter is to the right of the flame rod. Gently
pull the wire from the terminal. Using a 13/16” deep
socket, unscrew and remove the spark igniter. Apply a
high temperature anti-seize compound to threads prior to
reinstallation.
4. Reinstall the flame rod and ignition wires. A red band
identifies the flame rod wire.
I.5 Burner Removal
1. Turn heater OFF and disconnect power.
2. Once impeller is at a complete stand still, remove
combustion chamber access panel.
3. Remove spring wedge holding defroster (14). Remove
cable strap from mounting bracket. Pull defroster out and
let it hang.
4. Open pipe union (12).
5. Remove bolts fastening both mounting brackets (13) to
the combustion chamber. Leave brackets attached to the
burner.
6. Remove burner.
7. Reverse procedure to reinstall.
I.6 Burner Defroster Removal
NOTE: The defroster circuit is protected with a reset-enabled
fuse. If tripped, open then close the panel breaker to
reset.
1. Turn heater OFF and disconnect power.
2. Once impeller is at a complete stand still, remove
combustion chamber access panel.
3. Remove spring wedge holding defroster (14). Remove
cable strap from mounting bracket.
4. Pull defroster out and let it hang.
5. Open electrical access panel. Trace defroster wires to
terminal block (16), terminals 5 and 6, circled. Disconnect
last two wires on the bottom furthest right of terminal
block.
6. Reverse procedure to reinstall.