Desa P)T Benutzerhandbuch

www.desatech.com

119426-01A

FRONT BURNER FLAME PATTERN

Figure 38 shows correct front burner flame pat-

tern. Figure 39 shows incorrect front burner flame

pattern. The incorrect burner flame pattern shows

yellow tipping at top of blue flame.

WARNING: If yellow tipping

occurs, your heater could pro-

duce increased levels of carbon

monoxide. If front burner flame

pattern shows yellow tipping,

follow instructions at bottom of

this page. Yellow flame on rear

burner is normal.

NOTICE: Do not mistake orange

flames with yellow tipping. Dirt

or other fine particles are burned

by heater, causing brief patches

of orange flame.

If front burner flame pattern is incorrect, as shown

in Figure 39

• turn heater off (see To Turn Off Gas to Appli-

ance, page 21 [Thermostat-Controlled Models]

or page 23 [Remote-Ready Models])

• see Troubleshooting, page 28

INSPECTING bURNERS

Continued

Figure 38 - Correct Front Burner Flame

Pattern

Figure 39 - Incorrect Front Burner Flame

Pattern

Yellow Tipping At
Top of Blue Flame

CLEANING AND

MAINTENANCE

WARNING: Turn off heater

and let cool before cleaning.

CAUTION: You must keep

control areas, burners and

circulating 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

cleaning due to excessive lint

from carpeting, pet hair, bedding

material, etc.

WARNING: Failure to keep

the primary air opening(s) of

the burner(s) clean may result in

sooting and property damage.

BURNER INjECTOR HOLDER AND
PILOT AIR INLET HOLE

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.

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 PSI. 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 using com-

pressed 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 holder for dust and dirt (see Figure

40, page 27).

3. Blow air through the ports/slots and holes in

the burner.