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114370-02C

13

TROUBLESHOOTINg

 WARNING: Turn off log set and let cool before servicing. Only a 

qualified service person should service and repair log set.

 CAUTION: Never use a wire, needle, or similar object to clean 

ODS/pilot. This can damage ODS/pilot unit.

Note: 

All troubleshooting items are listed in order of operation.

POSSIBLE CAUSE

REMEDY

OBSERVED PROBLEM

1. Ignitor  electrode  not  con

-

nected to ignitor cable

2. Ignitor  cable  pinched  or 

wet

3. Piezo ignitor nut is loose

4. Broken ignitor cable

5. Bad piezo ignitor

6. Ignitor electrode positioned 

wrong or broken

1. Gas  supply  turned  off  or 

equipment  shutoff  valve 

closed

2. Control knob not in PILOT 

position

3. Control knob not pressed in 

while in PILOT position

4. Air  in  gas  lines  when  in

-

stalled

5. Depleted  gas  supply  (pro

-

pane/LP only)

6. Pilot is clogged

7. Gas regulator setting is not 

correct

When ignitor button is pressed, 

there is no spark at pilot

When ignitor button is pressed, 

there  is  spark  at  pilot  but  no 

ignition

1. Reconnect ignitor cable

2. Free ignitor cable if pinched 

by any metal or tubing. Keep 

ignitor cable dry

3. Tighten  nut  holding  piezo 

ignitor to base panel of log 

set. Nut is located behind base 

panel

4. Replace ignitor cable

5. Replace piezo ignitor 

6. Replace ignitor electrode 

1. Turn on gas supply or open 

equipment shutoff valve

2. Turn control knob to PILOT 

position

3. Press in control knob while in 

PILOT position

4. Continue holding down con

-

trol knob. Repeat igniting op

-

eration until air is removed

5. Contact local propane/LP gas 

company

6. Clean pilot (see C

leaning and 

Maintenance

,  page  12)  or 

replace pilot assembly

7. Replace gas regulator

Summary of Contents for Design Dynamics VTD-18NV-JHB

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: ...his appliance may be in stalled in an aftermarket permanently located manufactured mobile home where not prohib ited by local codes This appliance is only for use with the type of gas indicated on the...

Page 3: ...be present 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 Any change...

Page 4: ...lified service person Note During initial operation slight smoking could occur due to log curing and the burning of manufacturing residues You may wish to add more ventilation by opening a window 7 To...

Page 5: ...o HI LO for use with hand held ON OFF remote included OF RC Converts ON OFF valve for use with hand held ON OFF remote See Accessories page 17 Installation WARNING Before installing in a solid fuel bu...

Page 6: ...p or permanent stop must be installed or the damper blade must be cut or removed Model Burner Btu Input MinIMUM Vent Opening VTD 18NV JHB VTD 18PV JHB 18 Ramp 59 000 8 dia VTD 24NV JHB VTD 24PV JHB 24...

Page 7: ...ply CONNECTING TO GAS SUPPLY WARNING This appliance requires a 3 8 NPT National Pipe Thread inlet connection to the pressure regulator WARNING A qualified ser vicepersonmustconnectheater to gas supply...

Page 8: ...t lightly to male NPT threads This will prevent excess sealant from going into pipe Excess sealant in pipe could result in clogged heater valves Figure 7 Gas Connection PurchasetheoptionalCSAdesign ce...

Page 9: ...e LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air 4 Check all joints of gas supply piping system Apply noncorrosive leak detection fluid to gas jo...

Page 10: ...not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department C Us...

Page 11: ...switch selector switch to the ON position to light burners Note AUTO is not functional Figure 11 Control Knob and Ignitor Button 11 Set flame adjustment knob to any level between HI and LO Optional co...

Page 12: ...W C Inlet Gas Pressure in of water Max 10 5 W C Min 5 0 W C VTD 18PV JHB Rating Variable 59 000 Btu Hr Type Gas Propane LP Ignition Piezo Manifold Pressure 10 W C Inlet Gas Pressure in of water Max 14...

Page 13: ...T position 4 Air in gas lines when in stalled 5 Depleted gas supply pro pane LP only 6 Pilot is clogged 7 Gas regulator setting is not correct When ignitor button is pressed there is no spark at pilot...

Page 14: ...es out when control knob is released Oneorbothburnerdoesnotlight after ODS pilot is lit Delayed ignition of burner Burner backfiring during com bustion 1 Press in control knob fully 2 After pilot ligh...

Page 15: ...rs are lit White powder residue forming within burner box or on adjacent walls or furniture Remote does not function Appliance produces a clicking ticking noise just after burners are lit or shut off...

Page 16: ...rs chemicals new car pet etc See IMPORTANT statement above 2 Low fuel supply propane LP only 3 Gas leak See Warning statement at top of page 1 Not enough fresh air is avail able 2 Low line pressure 3...

Page 17: ...l numbers of your log set how log set was malfunctioning type of gas used propane LP or natural gas purchase date Usually we will ask you to return the part to the factory Parts Not Under Warranty Con...

Page 18: ...desatech com 114370 02C 18 Illustrated Parts Breakdown Models VTD 18NV JHB VTD 24NV JHB VTD 30Nv JHB 2 10 11 26 27 28 20 13 7 9 13 19 1 8 12 3 5 6 4 12 5 24 29 22 18 13 23 14 17 15 16 13 29 21 25 12...

Page 19: ...re Harness 1 17 103784 01 ON OFF Extension Knob 1 18 14512 Valve MV NG 1 14513 Valve MV LP 1 19 112804 05 Valve Bracket 1 20 114395 01 Pilot Bracket 1 114395 02 Pilot Bracket 1 21 116910 01 Brass 3 8...

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

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