FMI SVYD18NRA - Manual (Page 16)

www.fmiproducts.com 113084-01L 16
ON
OFF
REMOTE
O
FF
PILOT
LO
IH
O
N
Figure 18 - Setting the Remote Selector
Switch, Control Knob and Flame
Adjustment Knob for Remote Operation
Remote Selector Switch
in REMOTE Position
(Optional Remote Control)
Flame Adjustment Knob
Control Knob
in ON Position
OPERATION
Continued
IMPORTANT: Do not leave the selector switch
in the REMOTE or ON position when the pilot
is not lit. This will drain the battery.
INSPECTING BURNERS
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.
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.
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.
Pilot Burner
Figure 19 - Correct
Pilot Flame Pattern
(Propane/LP
Shown)
Figure 20 - Incorrect
Pilot Flame Pattern
(Propane/LP Shown)
Thermocouple
Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
Figure 19 shows a correct pilot flame pattern.
Figure 20 shows an incorrect pilot flame pat-
tern. The incorrect pilot flame is not heating
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 20
• turn heater off (see To Turn Off Gas to Ap-
pliance, page 15
• see Troubleshooting, page 17