www.fmiproducts.com
124702-01E
20
WARNING: Make sure the se-
lector switch is in the OFF position
when you are away from home
for long periods of time. Heater
will come on automatically with
selector switch in the ON position.
TO TURN OFF GAS
TO APPLIANCE
1. Turn control knob clockwise
to the
OFF position.
2a. Set selector switch in the OFF position.
2b.
If Using Optional Hand-Held Remote:
Set
selector switch in the OFF position to
prevent draining battery.
3. Close equipment shutoff valve (see Figure
17, page 16).
OPERATION
Continued
Figure 22 - Pilot
(Propane/LP)
Ignitor
Electrode
Pilot
Burner
Figure 23 - Pilot
(Natural)
Pilot Burner
BURNER PRIMARY AIR HOLES
Air is drawn into the burner through the holes
in the fitting at the burner entrance. These
holes may become blocked with dust or lint.
Periodically inspect these holes for any block-
age and clean if needed. Blocked air holes
will create soot.
Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
Figure 24 shows a correct pilot flame pattern.
Figure 25 shows an incorrect pilot flame pat
-
tern. The incorrect pilot flame is not touching
the thermocouple. This will cause the thermo
-
couple to cool. When the thermocouple cools,
the heater will shut down.
If pilot flame pattern is incorrect, as shown
in Figure 32
• turn heater off (see
To Turn Off Gas to Ap-
pliance
, page 20)
• see
Troubleshooting
, page 26
Note: The pilot flame on natural gas units will
have a slight curve, but flame should be blue
and have no yellow or orange color.
MANUAL LIGHTING
PROCEDURE
1. Follow steps 1 through 6 under
Lighting
Instructions
, pages 20.
2. Depress control knob and light pilot
with match.
3. Keep control knob pressed in for 30 seconds
after lighting pilot. After 30 seconds, release
control knob. Now follow steps 9 through 11
under
Lighting Instructions
, page 20.
INSPECTING BURNERS
Figure 24 - Correct Pilot Flame Pattern
(Your pilot may vary from pilot shown)
Pilot Burner
Thermocouple
Pilot Burner
Thermocouple
Figure 25 - Incorrect Pilot Flame Pattern
(Your pilot may vary from pilots shown)
MAIN BURNER
Periodically inspect all burner flame holes with
the heater running. All slotted burner flame
holes should be open with yellow flame pres
-
ent. All round burner flame holes should be
open with a small blue flame present. Some
burner flame holes may become blocked by
debris or rust, with no flame present. If so,
turn off heater and let cool. Remove blockage.
Blocked burner flame holes will create soot.
