Desa EZ18N Owner'S Operation And Installation Manual Download Page 23

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119678-01C

POSSIBLE CAUSE

1. Control knob not fully

pressed in

2. Control knob not pressed in

long enough

3. Safety interlock system has

been triggered

4. Equipment shutoff valve not

fully open

5. Pilot flame not touching

thermocouple, which allows
thermocouple to cool, caus

ing 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

6. Thermocouple connection

loose at control valve

7. Thermocouple damaged
8. Control valve damaged

1. Inlet gas pressure is too

low

2. Burner orifice(s) clogged

3. Mislocated crossover tube

1. Manifold pressure is too

low

2. Burner orifice(s) clogged

3. Mislocated crossover tube

1. Burner orifice is clogged or

damaged

2. Damaged burner
3. Gas regulator defective

1. Not enough air

2. Gas regulator defective

REMEDY

1. Press in control knob fully

2. After ODS/pilot lights, keep

control knob pressed in 30
seconds

3. Wait one minute for safety

interlock system to reset.
Repeat ignition operation

4. Fully open equipment shut-

off valve

5. A) Contact local natural or

propane/LP gas company

B) Clean ODS/pilot (see

Cleaning

, page 20) or re

place ODS/pilot assembly

6. Hand tighten until snug,

then tighten 1/4 turn more

7. Replace pilot assembly
8. Replace control valve

1. Contact local natural or

propane/LP gas company

2. Clean burner(s) (see

Clean-

ing

, page 20) or replace

burner orifice(s)

3. Contact qualified service

person

1. Contact local natural or

propane/LP gas company

2. Clean burner(s) (see

Clean-

ing

, page 20) or replace

burner orifice(s)

3. Contact qualified service

person

1. Clean burner (see

Clean-

ing

, page 20) or replace

burner orifice

2. Replace damaged burner
3. Replace gas regulator

1. Check burner(s) for dirt

and debris. If found, clean

burner(s) (see

Cleaning

page 20)

2. Replace gas regulator

OBSERVED PROBLEM

ODS/pilot lights but flame
goes out when control knob

is released

One or both burners do not
light after ODS/pilot is lit

Delayed ignition of one or
both burners

Burner backfiring during
combustion

Yellow flame in front burner

during burner combustion

TROUbLESHOOTING

Continued

Summary of Contents for EZ18N

Page 1: ...l 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 department...

Page 2: ...ING This is an unvented 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...

Page 3: ...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 this heater...

Page 4: ...p inside fireplace will cause glass to burst Make sure there are no obstructions across openings of fireplace 8 To prevent the creation of soot follow the instructions in Cleaning page 20 9 Before usi...

Page 5: ...must be made by a licensed plumber or gas fitter in the Commonwealth of Massachusetts Sellers of unvented propane or natural gas fired supplemental room heaters shall provide to each purchaser a copy...

Page 6: ...rectly with the space in which the appliances are installed through openings not furnished with doors are considered a part of the un confined space Adjoining rooms are communicating only if there are...

Page 7: ...unt of Btu Hr used ________ Btu Hr maximum the space can support ________ Btu Hr actual amount used Example 51 200 Btu Hr maximum the space can support 73 000 Btu Hr actual amount of Btu Hr used The s...

Page 8: ...ted Crawl Space To Crawl Space To Attic Installation Figure 2 Ventilation Air from Inside Building Or Remove Door into Adjoining Room Option 3 Ventilation Grills Into Adjoining Room Option 2 Ventilati...

Page 9: ...pe of gas natural or propane LP If your gas supply is not the correct gas type do not install heater Call dealer where you bought heater for proper type heater WARNING This appliance is for either nat...

Page 10: ...e material is more than 12 you may need the hood accessory to deflect heat away from your mantel shelf See Figure 5 and Figures 6 and 7 page 11 for minimum clearances IMPORTANT If you cannot meet thes...

Page 11: ...lled at Floor Level Figure 7 Minimum Mantel Clearances When Using Hood Floor Clearances A If installing appliance on the floor level you must maintain the minimum distance of 14 to combustibles see Fi...

Page 12: ...inimum permanent flue opening you must provide Attach damper clamp so the minimum permanent flue open ing will be maintained at all times Area of Various Standard Round Flues Diameter Area 5 20 sq inc...

Page 13: ...e to Fireplace Floor Masonry Screw CONNECTING TO GAS SUPPLY WARNING This appliance requires a 1 2 NPT National Pipe Thread inlet connection to the pressure regulator WARNING A qualified service person...

Page 14: ...nt lightly to male NPT threads This will prevent excess sealant from going into pipe Excess sealant in pipe could result in clogged heater valves Propane LP Supply Tank External Regulator with Vent Po...

Page 15: ...r near gas meter for natural gas or using compressed air 4 Check all joints of gas supply piping sys tem Apply noncorrosive leak detection fluid to all joints Bubbles forming show a leak 5 Correct all...

Page 16: ...ailure to use only parts specifically approved with this heater may result in property damage or personal injury It is very important to install these logs exactly as instructed Do not modify logs Onl...

Page 17: ...uctions exactly B BEFORE LIGHTING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SME...

Page 18: ...ou don t smell gas go to the next step Operation Continued Figure 23 Pilot Ignitor Electrode Thermocouple Pilot Burner Figure 22 Control Knob and Ignitor Button Location OFF PILOT ON Control Knob Elec...

Page 19: ...kwise to the PILOT position 3 Press in control knob and turn clockwise to the OFF position 4 Close equipment shutoff valve see Figure 15 page 15 Manual lighting procedure 1 Follow steps 1 through 5 un...

Page 20: ...rculating 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 excessi...

Page 21: ...slotted burner flame holes should be open with yellow flame pres ent All round burner flame holes should be open with a small blue flame present Some burner flame holes may become blocked by debris or...

Page 22: ...hile 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 REMEDY 1 Reconnect ignitor cable 2 Free i...

Page 23: ...te for safety interlock system to reset Repeat ignition operation 4 Fully open equipment shut off valve 5 A Contact local natural or propane LP gas company B Clean ODS pilot see Cleaning page 20 or re...

Page 24: ...checked by local natural or propane LP gas company 3 Observe minimum installa tion clearances see pages 9 through 11 4 Clean burners see Clean ing page 20 or replace burner orifice s 1 Turn heater off...

Page 25: ...s from paint hair spray glues cleaners chemicals new carpet etc See IMPOR TANT statement above 2 Low fuel supply propane LP only 3 Gas leak See Warning statement at top of page 1 Gas leak See Warning...

Page 26: ...www desatech com 119678 01C 26 Parts Models EZ18N EZ18P EZ24N and EZ24P LPG 11 13 31 10 30 4 1 8 3 12 8 2 5 6 7 28 22 23 8 20 17 24 26 19 21 15 2 23 29 9 18 16 25 8 8...

Page 27: ...ural 1 12 101004 04 Front Burner Injector Natural 1 101004 01 Front Burner Injector Propane LP 1 101004 22 Front Burner Injector Natural 1 101004 06 Front Burner Injector Propane LP 1 13 107634 01 NG...

Page 28: ...2 3 5 6 7 KEY NO PART NO DESCRIPTION QTY 1 114984 01 Middle Log 1 114984 12 Middle Log 1 2 114984 02 Left Top Log 1 114984 13 Left Top Log 1 3 114984 03 Right Top Log 1 114984 14 Right Top Log 1 4 114...

Page 29: ...acement part s call DESA Heating LLC at 1 866 672 6040 for referral information A list of authorized dealers can be found by visiting www desatech com When calling DESA Heating LLC have ready model an...

Page 30: ...it gives you the tools and instructions to make it easy to clean all critical areas of your appliance Accessories FIREPLACE HOOD Black GA6050 Brass GA6052 Antique Brass GA6053 For all models Helps def...

Page 31: ..._____________________________ __________________________________________________________ __________________________________________________________ ____________________________________________________...

Page 32: ...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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