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122493-01C

21

TROUbLESHOOTING

Continued 

OBSERVED PROBLEM

ODS/pilot  lights  but  flame 

goes  out  when  control  knob 

is released

Burner  does  not  light  after 
ODS/pilot is lit

Delayed ignition of burner

Burner backfiring during com

-

bustion

REMEDY

1. Press in control knob fully

2. After ODS/pilot lights, keep 

control knob pressed in 30 
seconds

3. Fully open equipment shut-

off valve

4. A) Contact local natural or 

propane/LP gas company 

  B)  Clean  ODS/pilot  (see 

Cleaning and Maintenance

page 19) or replace ODS/
pilot assembly 

5. Hand  tighten  until  snug, 

then tighten 1/4 turn more

6. Replace pilot assembly
7. Replace control valve

1. Clean burner (see 

Cleaning 

and Maintenance

, page 19) 

or replace burner orifice

2. Contact  local  natural  or 

propane/LP gas company

1. Contact  local  natural  or 

propane/LP gas company

2. Clean burner (see 

Cleaning 

and Maintenance

, page 19) 

or replace burner orifice

1. Clean burner (see 

Cleaning 

and Maintenance

, page 19) 

or replace burner orifice

2. Replace damaged burner
3. Replace gas regulator

POSSIBLE CAUSE

1. Control  knob  not  fully 

pressed in

2. Control knob not pressed in 

long enough

3. Equipment shutoff valve not 

fully open

4. Pilot  flame  not  touching 

thermocouple,  which  al

-

lows thermocouple to cool, 
causing  pilot  flame  to  go 

out. This problem could be 
caused  by  one  or  both  of 

the following:

  A) Low gas pressure

  B) Dirty or partially clogged 

ODS/pilot 

5. Thermocouple  connection 

loose at control valve 

6. Thermocouple damaged
7. Control valve damaged

1. Burner orifice clogged

2. Inlet  gas  pressure  is  too 

low

1. Manifold  pressure  is  too 

low

2. Burner orifice clogged

1. Burner orifice is clogged or 

damaged

2. Damaged burner
3. Gas regulator defective

Содержание HDL18N

Страница 1: ...cal switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire departme...

Страница 2: ...vented gas fired heat er It uses air oxygen from the room in which it is installed Provisions for adequate combustion and ventilation air must be provided Refer to Air for Combustion and Ven tilation...

Страница 3: ...nt even though no odor exists Make certain you read and understand all warnings Keep this manual for reference It is your guide to safe and proper operation of this fireplace WARNING Any change to thi...

Страница 4: ...l operation slight smok ing could occur due to log curing and heater burning manufacturing residues 10 To prevent the creation of soot follow the instructions in Cleaning and Maintenance page 19 11 Be...

Страница 5: ...s sembly The data plates contain important warranty and safety information 1 Remove logs and heater base assembly from carton Note Do not pick up heater base assem bly by burners This could damage hea...

Страница 6: ...ight construction you must provide additional fresh air Unusually tight construction is defined as construction where a walls and ceilings exposed to the out side atmosphere have a continuous water va...

Страница 7: ...an the maximum Btu Hr the space can support You must provide additional fresh air Your options are as follows A Rework worksheet adding the space of an adjoining room If the extra space provides an un...

Страница 8: ...ation for required size of ventilation grills or ducts IMPORTANT Do not provide openings for inlet or outlet air into attic if attic has a thermo stat controlled power vent Heated air entering the att...

Страница 9: ...RANCE TO COMBUSTIBLE MATERIALS Side Wall 16 Ceiling 42 Front 36 Carefully follow the instructions below This will ensure safe installation into a masonry UL127 listed manufactured fireplace or certi f...

Страница 10: ...is not required see Figure 6 Figure 6 Minimum Mantel Clearances Without Using Hood Determining Minimum Mantel Clearance when Using a Hood If minimum clearances in Figure 6 are not met you must have a...

Страница 11: ...to combustibles see Figure 8 B If combustible materials are less than 14 to the fireplace you must install appliance at least 5 above the combustible flooring see Figure 9 INSTALLING DAMPER CLAMP ACC...

Страница 12: ...eater control panel This will in sure adequate air flow and guard against sooting and controls be ingdamaged Raisefireplacefloor with noncombustible material Make sure material is secure CAUTION Do no...

Страница 13: ...lregu lator not supplied Install the external regulator between the heater and propane LP supply WARNING For natural gas units never connect heater to private non utility gas wells This gas is commonl...

Страница 14: ...ible Gas Hose if allowed by local codes Natural From Gas Meter 5 W C to 10 5 W C Pressure Propane LP From External Regulator 11 W C to 14 W C Pressure We recommend that you install sediment trap in su...

Страница 15: ...m by either opening propane LP supply tank valve for propane LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air 3 Check all joints from gas meter nat...

Страница 16: ...will fit over burner see Figure 18 Holes in bottom of log must seat over pins on base as shown in Figure 18 Make sure back of log as Figure 18 Installing Main Log 1 Back Tab Burner Front Tab Notch for...

Страница 17: ...to replace any part of the control system and any gas control which has been under water LIGHTING INSTRUCTIONS WARNING If fireplace has glass doors never operate this heater with glass doors closed If...

Страница 18: ...tern Pilot Burner Thermocouple Pilot Burner Thermocouple Inspecting Burners Check pilot flame pattern and burner flame patterns often PILOT FLAME PATTERN Figure 22 shows a correct pilot flame pattern...

Страница 19: ...to excessive lint from carpeting bedding material pet hair etc WARNING Failure to keep the primary air opening s of theburner s cleanmayresultin sooting and property damage Once every year a qualifie...

Страница 20: ...ile in PILOT position 4 Air in gas lines when in stalled 5 Depleted gas supply pro pane LP only 6 ODS pilot is clogged 7 Gas regulator setting is not correct OBSERVED PROBLEM When control knob is pres...

Страница 21: ...or propane LP gas company 1 Contact local natural or propane LP gas company 2 Clean burner see Cleaning and Maintenance page 19 or replace burner orifice 1 Clean burner see Cleaning and Maintenance pa...

Страница 22: ...burner until air is removed from line Have gas line checked by local natural or propane LP gas company 3 Observe minimum instal lation clearances see page 9 4 Clean burner see Cleaning and Maintenance...

Страница 23: ...see Checking Gas Con nections page 14 1 Open window and or door for ventilation 2 Contact local natural or propane LP gas company 3 Clean ODS pilot see Cleaning and Maintenance page 19 1 Locate and c...

Страница 24: ...www desatech com 122493 01C 24 Parts MODELS hdl18 n p vdb18 n p 1 18 19 2 16 4 15 15 8 9 11 21 5 12 3 10 17b 17c 17a 14 7 6...

Страница 25: ...Burner Inlet Tube 1 9 108188 02 Screw Type U Drive 2 x 0 75 1 10 108134 01 NG Plate 1 11 099056 26 Injector 1 099056 19 Injector 1 12 099387 08 Pilot Tube 1 13 098249 01 ODS Nut 2 14 M11084 38 Screw H...

Страница 26: ...eating LLC have ready model number of your heater the replacement part number Technical Service You may have further questions about instal lation operation or troubleshooting If so con tact DESA Heat...

Страница 27: ...n Street Kansas City MO 64108 KS MO AR 816 842 3911 www washerparts com East Coast Energy Products 10 East Route 36 W Long Branch NJ 07764 732 870 8809 1 800 755 8809 www njplaza com ecep 21st Century...

Страница 28: ...proved by DESA Heating LLC Warranty parts must be obtained through authorized dealers of this prod uct and or DESA Heating LLC who will provide original factory replacement parts Failure to use origin...

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