Inspecting Burners - Desa VSGF33NRC Owner's Operation And Installation Manual

OPERATING FIREPLACE
Continued
2. The receiver continuously receives signals
from the hand-held remote to control the
room temperature. If the hand-held remote
is misplaced, obstructed, or for any reason
cannot transmit to the receiver, the receiver
will shut off the fireplace after 8 minutes.
Key Pad Lock Feature
This feature allows the user to lock/unlock
the keypad on the hand-held remote in the
MANU or AUTO mode to prevent inadvertent
operation (i.e. children operating the hand-held
remote control, etc.). The keypad is locked in
either on or off. Press the POWER and LOCK
buttons together to turn the unit on or off.
OPTIONAL BLOWER
OPERATION
WARNING: This fireplace has
a three-prong, grounded electrical
plug. This plug helps protect you
against electrical shock. Only con-
nect plug to a properly grounded,
three-prong receptacle. Do not cut
or remove the grounding prong
from this plug.
Locate the blower switch by opening lower
louver on fireplace. Blower switch is located at
lower left inside louver door.
The GA3650TB thermostat-controlled blower
has a variable speed control with an ON/OFF
switch. The blower will start when the ther-
mostat senses a sufficient increase in firebox
temperature. The GA3750A variable speed
blower also has an ON/OFF switch built into
the variable speed control.
Note for GA3650TB Only: If you are using
GA3650TB blower, your fireplace and blower
will not turn on and off at the same time. The
fireplace may run for several minutes before the
blower turns on. After the heater modulates to
the pilot position, the blower will continue to
run. The blower will shut off after the firebox
temperature decreases.
Note: It is safe to operate fireplace with blower
turned off. However, the blower helps distribute
heated air from the fireplace.
Follow installation instructions included with
the blower accessory.
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INSPECTING BURNERS

Check pilot flame pattern and burner flame pat-
terns often.
PILOT FLAME PATTERN
Figure 32 shows a correct pilot flame pattern.
Figure 33 shows an incorrect pilot flame pattern.
The incorrect pilot flame is not properly heating
the thermocouple. When the thermocouple cools,
the heater will shut down.
If pilot flame pattern is incorrect, as shown in
Figure 33
• turn heater off (see To Turn Off Gas to Appli-
ance, page 18)
• see Troubleshooting, page 23
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.
Pilot Burner
Figure 33 - Correct Pilot Flame Pattern
Pilot Burner
Figure 34 - Incorrect Pilot Flame Pattern
MAIN BURNER
Periodically inspect all burner flame holes with
the heater running. All slotted burner flame holes
should be open with yellow flame present. 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
may create soot.
FRONT BURNER FLAME PATTERN
flame pattern shows yellow tip-
ping, your fireplace could pro-
duce increased levels of carbon
monoxide. Follow instructions
below. Yellow flame on rear
burner is normal.
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WARNING: If front burner
Thermocouple
Thermocouple
119304-01A