1 4
Figure 20 shows a correct burner
flame pattern. Figure 21 shows an
incorrect burner flame pattern. If
burner flame is incorrect:
l
Turn heater off (see TO TURN
OFF GAS TO APPLIANCE)
l
See
troubleshooting
Figure 19 -Incorrect Pilot Flame
Pattern
BURNER FLAME PATTERN
Figure 20-Correct Flame Pattern
with Control Knob Set to High Flame
Figure 21 -Incorrect Flame Pattern
with Control Knob Set to High Flame
CLEANING AND
MAINTENANCE
WARNING:
Disconnect power be-
fore attempting any maintenance or
cleaning to reduce the risk of fire , elec-
tric shook or personal injury. Turn off
heater and let cool before cleaning.
DISCONNECT WIRNG OR CONTROL
MODULE
1. Remove screws from the rear
control panel , take out thermostat
CAUTION
:
Label all wires prior to
disconnection
Wiring errors can cause
improper and dangerous operation.
C A U T IO N :
Yo u m u st k ee p
c o n t r o l a r e a s , b u r n e r , a n d
c irc u latin g air p assag ew ays o f
h e a t e r c l e a n . I n s p e c t t h e s e
a r e a s o f h e a t e r b e f o r e e a c h
u s e . H a v e h e a t e r i n s p e c t e d
yearly by a qualified service person.
H e a t e r m a y n e e d m o r e
f r e q u e n t c l e a n i n g d u e t o
e xc es sive lin t f ro m c ar p e tin g ,
b ed ding m aterial, p et h air, etc .
Figure 22- Control Model
DISCONNECT FAN
1.
Remove screws from the fan bracket
panel , pull the fan bracket panel out to
remove. Then disconnect two wires
free to fan.
2.
Mark or tag each wire removed for its
exact reconnection. Remove the four
screws from the fan .when installing ,
reverse the steps above. (See Figure
23 and Figure 26)
Figure 23- Fan
2. Remove two screws and hex nuts,
take out the control module. When in-
stalling , reverse the steps above.
(See Figure 22 and Figure 26)
The primary air inlet holes allow the
proper amount of air to mix with the
gas. This provides a clean burning
flame. Keep these holes clear of dust,
dirt, lint, and pet hair. Clean these air
inlet holes prior to each heating season.
Blocked air holes will create soot. We
recommend that you clean the unit
every three months during operation
and have heater inspected yearly by a
qualified service person.
sensing bulb from the clip, then disco-
nnect the wires to free to control
module from its mounting location .
Note: Do not confuse the mark on
the each wire.
when servicing
controls
.
Verify proper operation after servicing.
INSPECTING BURNERS
Check pilot flame pattern and burner
flame patterns often.
PILOT FLAME PATTERN
Figure 18 shows a correct pilot flame
pattern. Figure 19 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 Fig-
ure 19.
l
Turn heater off (see TO TURN
OFF GAS TO APPLIANCE)
l
see
troubleshooting
Figure 18 -Correct Pilot Flame
Pattern
