Desa VS18NRA, CFS18NRA, VS24NRA, VS30NRA Cleaning and Maintenance, Replacement Parts

DESA INTERNATIONAL

UNVENTED NATURAL GAS LOG HEATER

CLEANING AND MAINTENANCE

WARNING: Turn off heater and let cool before cleaning.

4.Check the injector holder located at the end of the burner tube again. Remove any large particles of dust, dirt, lint, or pet hairs with a soft cloth or vacuum cleaner nozzle.

5.Blow air into the primary air holes on the injector holder.

REPLACEMENT PARTS

Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty.

CAUTION: You must keep control areas, burners, and cir- culating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a quali- fied service person. Heater may need more frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc.

CLEANING 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, and lint. Clean these air inlet holes prior to each heating season. Blocked air holes will create soot. We rec- ommend that you clean the unit every 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 recom- mend using compressed air no greater than 30 PSI. Your local computer store, hard- ware store, or home center may carry com- pressed 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 direc- tions on the can. If you don't follow direc- tions 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 28).

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

6.In case any large clumps of dust have now been pushed into the burner repeat steps 3 and 4.

Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in the pilot assembly. There is a small pilot air inlet hole about two inches from where the pilot flame comes out of the pilot assembly (see Figure 29). 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.

Injector Holder

Ports/Slots

Burner

Tube

Primary Air Inlet

Holes

Figure 28 - Injector Holder On Outlet Burner Tube

Pilot Air Inlet

Hole

Pilot Assembly

Figure 29 - Pilot Inlet Air Hole

LOGS

•If you remove logs for cleaning, refer to Installing Logs, page 13 , to properly re- place logs.

•Replace log(s) if broken or chipped (dime-sized or larger).

PARTS UNDER WARRANTY

Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA International’s Techni- cal Service Department at 1-800-323-5190.

When calling DESA International, have ready

•your name

•your address

•model and serial numbers of your heater

•how heater was malfunctioning

•type of gas used (propane/LP or natural gas)

•purchase date

Usually, we will ask you to return the defec- tive part to the factory.

PARTS NOT UNDER

WARRANTY

Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA International’s Parts Department at 1-800-972-7879 for referral information.

When calling DESA International, have ready

•model number of your heater

•the replacement part number

18 104416