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114926-01B

14

OBSERVED PROBLEM

ODS/pilot lights but flame goes 

out  when  control  knob  is  re-

leased

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 for 30 

seconds

3. Wait one minute for safety in-

terlock system to reset. Repeat 

ignition operation

4. Fully open equipment shutoff 

valve

5. A)  Contact  local  natural  or  

      propane/LP gas company

 

  B)  Clean  ODS/pilot  (see  

           

Cleaning and Maintenance,  

     

page 12) or replace 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 

Cleaning 

and Maintenance

, page 12) or 

replace burner orifice(s)

3. Replace burner orifice(s)

4. Put  remote  selector  in  ON 

position

5. See 

Wiring  Diagram

,  page 

17)

1. Contact  local  natural  or 

propane/LP gas company

2. Clean burner(s) (see 

Cleaning 

and Maintenance

, page 12)

1. Clean  burner  (see 

Cleaning 

and Maintenance

, page 12) 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. Safety interlock system has 

been triggered

4. Equipment shutoff valve not 

fully open

5. Pilot  flame  not  touching 

thermocouple, which allows 

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

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. Burner  orifice(s)  diameter 

too small

4. Remote  selector  in  OFF 

position (Remote use only)

5. Wire disconnected from gas 

control (Remote use only)

1. Manifold  pressure  is  too 

low

2. Burner orifice(s) clogged

1. Burner orifice is clogged or 

damaged

2. Damaged burner

3. Gas regulator defective

TROUBLESHOOTING

Continued

Summary of Contents for Firewerks VTDMV18NA

Page 1: ...ny other appliance WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighbor s...

Page 2: ...33 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation This appliance may be installed in an aftermarket per manently located manufactured mobile home where not prohibited by local codes This app...

Page 3: ...ent 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 log set WARNING Do not place log s...

Page 4: ...ss provided by other means screens shall have openings for introduction of combustion air 8 Toreducethecreationofsoot followtheinstruc tions in Cleaning and Maintenance page 12 SAFETY INFORMATION Cont...

Page 5: ...d ser vice person must install heater Follow all local codes WARNING Before installing in a solid fuel burning replace the chimney ue and rebox must be cleaned of soot creo sote ashes and loose paint...

Page 6: ...nly in a solid fuel burning or UL127 factory built re place constructed of noncombustible material and connected to a working ue The replace chimney must have a permanent vent opening to outside with...

Page 7: ...ction to the control valve INSTALLATION Continued CAUTION Never connect propane LP unit directly to the propane LP supply This unit re quiresanexternalregulator not supplied Install the external regul...

Page 8: ...ssure Propane LP From External Regulator 11 W C to 14 W C Pressure 3 Min Pipe Cap Tee Nipple Joint CHECKING GAS CONNECTIONS WARNING Testallgaspiping and connections for leaks after installing or servi...

Page 9: ...valve 3 Make sure control knob of appliance is in the OFF position 4 Check all joints from equipment shutoff valve to gas control see Figure 9 or 10 Apply noncorrosive leak detection uid to all joint...

Page 10: ...d separately see Accessories page 17 Follow instructions included with the remote control OPERATING APPLIANCE FOR YOUR SAFETY READ BEFORE LIGHTING WARNING Keep ue open when operating unit WARNING If y...

Page 11: ...e thermocouple to cool When the thermocouple cools the appliance will shut down If pilot ame pattern is incorrect as shown in Figure 16 turn appliance off see To Turn Off Gas to Appliance page 10 see...

Page 12: ...ignition propane LP gas supply may be low You may feel your gas pressure is too low If so contact your local propane LP or natural gas supplier TECHNICAL SERVICE You may have further questions about i...

Page 13: ...in gas lines when in stalled 5 Depleted gas supply pro pane LP only 6 ODS pilot is clogged 7 Gas regulator setting is in correct When ignitor button is pressed there is no spark at ODS pilot When igni...

Page 14: ...page 17 1 Contact local natural or propane LP gas company 2 Clean burner s see Cleaning and Maintenance page 12 1 Clean burner see Cleaning and Maintenance page 12 or replace burner ori ce 2 Replace d...

Page 15: ...2 Operate burners until air is removed from line Have gas line checked by local natural or propane LP gas company 3 Observe minimum installation clearances see page 6 4 Clean burners see Cleaning and...

Page 16: ...nding while heating or contracting while cooling 1 Appliance burning vapors from paint hair spray glues cleaners chemicals new carpet etc See IMPORTANT statement above 2 Low fuel supply propane LP onl...

Page 17: ...2 6040 for referral information You can also write to the address listed on the back page of this manual EQUIPMENT SHUTOFF VALVE GA5010 Equipment shutoff valve with 1 8 NPT tap Fits 1 2 pipe FIREPLACE...

Page 18: ...www desatech com 114926 01B 18 ILLUSTRATED PARTS BREAKDOWN VTDMV24NA VTDMV24PA VTDMV18NA VTDMV18PA 1 2 3 4 5 6 17 16 15 7 8 9 10 11 12 14 13...

Page 19: ...ket 1 9 111807 01 111807 02 111807 01 111807 02 Valve 1 10 112376 01 103778 01 112376 01 103778 01 Pilot Assembly 1 11 111828 01 111818 01 111828 01 111828 01 Brass Fitting 2 12 114930 01 114930 01 11...

Page 20: ...The heater MUST be installed by a quali ed installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in original conditi...

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