Desa GWRP10 - Manual (Page 14)

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INSPECTING HEATER
Check pilot flame pattern and burner flame pat-
tern often.
PILOT FLAME PATTERN
Figure 20 shows a correct pilot flame pattern.
Figure 21 shows an incorrect pilot flame pattern.
The incorrect pilot flame is not touching 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 21
• turn heater off (see To Turn Off Gas to Appli-
ance)
• see Troubleshooting, page 16
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.
OPERATING HEATER
Continued
BURNER FLAME PATTERN
Figure 22 shows a correct burner flame pattern. Fig-
ure 23 shows an incorrect burner flame pattern.
If burner flame pattern is incorrect, as shown in
Figure 23
• turn heater off (see To Turn Off Gas to Appli-
ance)
• see Troubleshooting, page 16
Thermocouple
Pilot Burner
Pilot Burner
Thermocouple
Blue Flame
Yellow Flame
Figure 20 - Correct Pilot Flame Pattern
Figure 21 - Incorrect Pilot Flame Pattern
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
1. Turn control knob clockwise to the
OFF position.
2. Turn off all electric power to the appliance if
service is to be performed.
Shutting Off Burner Only (pilot stays lit)
Turn control knob clockwise to the PILOT
position.
MANUAL LIGHTING
PROCEDURE
1. Remove front panel (see Figure 10, page 9).
2. Follow steps 1 through 7 under Lighting
Instructions, page 13.
3. With control knob pressed in, strike match.
Hold match to pilot until pilot lights.
4. Keep control knob pressed in for 30 seconds
after lighting pilot. After 30 seconds, release
control knob. Now follow step 9, under Light-
ing Instructions, page 13.
5. Replace front panel.
Figure 22 - Correct
Burner Flame
Pattern
Figure 23 -
Incorrect Burner
Flame Pattern
CLEANING AND
MAINTENANCE
WARNING: Turn off heater
and let cool before cleaning.
CAUTION: You must keep
control areas, burner and circu-
lating air passageways of heater
clean. Inspect these areas of
heater before each use. Have
heater inspected yearly by a
qualified service person. Heater
may need more frequent clean-
ing due to excessive lint from
carpeting, bedding material, pet
hair, etc.