Desa EFS33NR EU - Manual (Page 18)

107172-01G
18
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Check pilot flame pattern and burner flame patterns often.
PILOT FLAME PATTERN
Figure 37 shows a correct pilot flame pattern. Figure 38 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 38
• turn heater off (see To Turn Off Gas to Appliance, page 17)
• see Troubleshooting, pages 20 through 22
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.
INSPECTING BURNERS
OPERATING FIREPLACE
Optional Remote Operation (Cont.)
Optional Blower Operation
INSPECTING BURNERS
Pilot Flame Pattern
Main Burner
Front Burner Flame Pattern
Figure 37 - Correct Pilot Flame
Pattern
Pilot Burner
Figure 38 - Incorrect Pilot
Flame Pattern
Pilot Burner
Thermocouple
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
WARNING: If front burner flame pattern shows
yellow tipping, your fireplace could produce increased
levels of carbon monoxide. Follow instructions below.
Yellow flame on rear burner is normal.
NOTICE: Do not mistake orange flames with yellow
tipping. Dirt or other fine particles are burned by
fireplace, causing brief patches of orange flame.
Figure 39 on page 19 shows correct front burner flame pattern.
Figure 40 on page 19 shows incorrect front burner flame pattern.
The incorrect burner flame pattern shows yellow tipping at top of
blue flame.
If front burner flame pattern is incorrect, as shown in Figure 40,
page 19
• turn fireplace off (see To Turn Off Gas to Appliance, page 17)
• see Troubleshooting, pages 20 through 22
IMPORTANT: The hand-held remote control unit must
be near the fireplace. Do not keep the hand-held remote
control unit too close to the fireplace. The thermostat on
the hand-held remote control unit will heat up too quickly
and turn the fireplace off.
3. To turn the burners off, press the AUTO/ON/OFF button
until OFF lights. The pilot will remain lit.
IMPORTANT: To turn the pilot off, manually turn the con-
trol knob on the fireplace to the OFF position.
Figure 36 - Thermostat Hand-Held Remote Control Unit
Selections (GHRCTA Series Only)
Shows Temperature
Setting
Increases Room
Temperature in
AUTO Mode
Decreases Room
Temperature in
AUTO Mode
Turns Burners On or
Off and Allows You
to Choose the Auto
Setting
The Log Heater will
Automatically Cycle
between Pilot and
the Heat Setting that
has been Selected
OPTIONAL BLOWER
OPERATION
Locate the blower switch by opening lower louver on fireplace.
Blower switch is located at lower left inside louver door.
The GA3700TA thermostat-controlled blower has a variable
speed control with an ON/OFF switch. The blower will start
when the thermostat senses a sufficient increase in firebox
temperature. The GA3700 variable speed blower also has an
ON/OFF switch built into the variable speed control.
Note for GA3700TA Only: If you are using GA3700TA 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.
WARNING: This fireplace has a three-prong,
grounded electrical plug. This plug helps protect you
against electrical shock. Only connect plug to a
properly grounded, three-prong receptacle. Do not
cut or remove the grounding prong from this plug.
OPERATING FIREPLACE
Continued