Desa SVYD18N - Manual (Page 17)

111162-01A
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Pilot Burner
Figure 33 - Correct Pilot Flame
Pattern (Propane/LP Shown) Figure 34 - Incorrect Pilot Flame
Pattern (Propane/LP Shown)
INSPECTING BURNERS
Check pilot flame pattern and burner flame patterns often.
PILOT FLAME PATTERN
(Remote-Ready Models)
Figure 33 shows a correct pilot flame pattern. Figure 34 shows an
incorrect pilot flame pattern. The incorrect pilot flame is not heating
the thermocouple. This will cause the thermocouple to cool. When the
thermocouple cools, the heater will shut down.
If pilot flame pattern is incorrect, as shown in Figure 34
• turn heater off (see To Turn Off Gas to Appliance, page 14
• see Troubleshooting, pages 19 through 21
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.
Thermocouple Pilot Burner
Thermocouple
(Variable-Manual Control Models)
Figure 35 shows a correct pilot flame pattern. Figure 36 shows an
incorrect pilot flame pattern. The incorrect pilot flame is not heating
the thermocouple. This will cause the thermocouple to cool. When
the thermocouple cools, the heater will shut down.
If pilot flame pattern is incorrect, as shown in Figure 36
• turn heater off (see To Turn Off Gas to Appliance, column 1)
• see Troubleshooting, pages 19 through 21
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.
Figure 35 - Correct Pilot
Flame Pattern (Propane/LP
Shown) Figure 36 - Incorrect Pilot
Flame Pattern (Propane/LP
Shown)
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 blockage 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 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 will create soot.
Pilot Burner
Thermocouple
Pilot Burner
Thermocouple
OPERATING HEATER
To Turn Off Gas To Appliance
Manual Lighting Procedure
INSPECTING BURNERS
Pilot Flame Pattern
Burner Primary Air Holes
Main Burner
OPERATING HEATER
Continued
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
1. Press in and turn control knob clockwise
Clockwise
to the
HI position.
2. Turn the control knob clockwise
Clockwise
to the PILOT
position.
3. Press in control knob and turn clockwise
Clockwise
to the
OFF Position.
Shutting Off Burners Only (pilot stays lit)
1. Turn the control knob clockwise
Clockwise
to the HI position.
2. Press in and turn control knob clockwise
Clockwise
to the
PILOT position.
MANUAL LIGHTING
PROCEDURE
1. Follow steps 1 through 5 under Lighting Instructions,
page 16.
2. Pilot is located inside stove cavity attached to burner. Lift
off top grate to allow access to pilot.
3. Depress control knob and light pilot with match.
4. Keep control knob pressed in for 30 seconds after lighting
pilot. After 30 seconds, release control knob.
5. Place top grate back into position. Now follow step 8 under
Lighting Instructions, page 16.