Installation Guide
www.usaprocom.com
200068-01A24
Use a vacuum cleaner, pressurized air, or a 
small, soft bristled brush to clean.
A yellow tip on the pilot ame indicates dust 
and dirt in the pilot assembly. There is a small 
pilot  air  inlet  hole  about  2"  from  where  the 
pilot ame comes out of the pilot assembly 
(see Figure 36). With the unit off, lightly blow 
air through the air inlet hole. You  may blow 
through a drinking straw if compressed air is 
not available.
Figure 36 - Pilot Inlet Air Hole (HLA Shown)
LOGS
ODS/PILOT
•  If you remove logs for cleaning, refer to Install-
ing Logs, page 18, to properly replace logs.
•  Replace log(s) if broken or chipped (dime-
size or larger).
Figure 35 - Burner Tube
Burner 
Tube
Primary Air Inlet Hole
BURNER INJECTOR HOLDER AND PILOT AIR INLET HOLE
We recommend that you  clean  the  unit  ev-
ery 2,500 hours of operation or every three 
months. We also recommend that you keep 
the  burner  tube  and  pilot  assembly  clean 
and  free  of  dust  and  dirt.  To  clean  these 
parts we recommend using compressed air 
no greater than 30 PSl. Your local computer 
store, hardware  store,  or  home  center  may 
carry compressed air in a can. You can use 
a vacuum cleaner in the blow position. If us-
ing  compressed  air  in  a  can,  please  follow 
the directions on the can. If you don’t follow 
directions on the can, you could damage the 
pilot assembly.
1.  Shut off the unit, including the pilot. Allow 
the unit to cool for at least thirty minutes.
2.  Inspect burner, pilot and primary air inlet 
holes  on  injector  for  dust  and  dirt  (see 
Figure 35).
3.  Blow air through the ports/slots and holes 
in the burner. Also clean the pilot assembly.
4.  Check the injector holder located at the 
end of the burner tube again. Remove any 
large particles of dust, dirt, lint, or pet hair 
with a soft cloth or vacuum cleaner nozzle.
5.  Blow air into the primary air holes on the 
injector holder.
6.  In  case  any  large  clumps  of  dust  have 
now been pushed into the burner. Repeat 
steps 3 and 4.
CARE AND MAINTENANCE
 WARNING: Turn off heater and let cool before servicing.
 CAUTION: You must keep control areas, burner, and circulating 
air passageways of heater clean. Inspect these areas of heater before 
each use. Have heater inspected yearly by a qualied service techni-
cian. Heater may need more frequent cleaning due to excessive lint 
from carpeting, bedding material, pet hair, etc.
  WARNING:  Failure  to  keep  the  primary  air  opening(s)  of  the 
burner(s) clean may result in sooting and property damage.
MAIN BURNER
Periodically inspect all burner ame holes with 
the  heater  running. All slotted  burner  ame 
holes should be open with yellow ame pres-
ent. All round burner ame holes should be 
open with a small blue ame present. Some 
burner ame holes may become blocked by 
debris  or  rust,  with no  ame  present.  If  so, 
turn off the heater and let it cool, and remove 
blockage.  Blocked  burner  ame  holes  will 
create soot.
Ignitor 
Electrode
Thermocouple
Pilot Air Inlet Hole
Pilot Burner










