Vanguard Heating VS24PR, VS30PR, VS18PR Trouble, Shooting, Continued, See Wiring Diagram, page

Models: VS18PR VS30PR VS24PR

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TROUBLE-

TROUBLE-

OBSERVED PROBLEM POSSIBLE CAUSE

REMEDY

SHOOTING

Continued

ODS/pilot lights but flame goes out when control knob is released

1.Control knob not fully pressed in

2.Control knob not pressed in long enough

3.Manual shutoff valve not fully open

4.Pilot flame not touching thermo- couple, which allows thermo- couple 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.Gas control damaged

1.Press in control knob fully

2.After ODS/pilot lights, keep control knob pressed in 30 seconds

3.Fully open manual shut-off valve

4.A) Contact local propane gas company B) Clean ODS/pilot (see Cleaning and Maintenance, page 23) or replace ODS/pilot assembly

5.Hand tighten until snug, then tighten 1/4 turn more

6.Replace thermocouple

7.Replace gas control

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

1.Inlet gas pressure is too low

2.Burner orifice(s) clogged

3.Mislocated crossover tube

4.Burner orifice(s) diameter is too small

5.Remote selector in OFF position

6.Wire disconnected from gas control

1.Contact local propane (LP) gas company

2.Clean burner(s) (see Cleaning and Maintenance, page 23) or replace burner orifice(s)

3.Contact qualified service person

4.Replace burner orifice(s)

5.Put remote selectorin ON position

6.See Wiring Diagram, page 26

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Delayed ignition of one

1. Manifold pressure is too low

1. Contact local propane (LP) gas company

or both burners

2. Burner orifice(s) clogged

2. Clean burner(s) (see Cleaning and

 

 

Maintenance, page 23) or replace

 

 

burner orifice(s)

 

3. Mislocated crossover tube

3. Contact qualified service person

 

 

 

Burner backfiring during

1. Burner orifice is clogged or

1. Clean burner (see Cleaning and

combustion

damaged

Maintenance, page 23) or replace

 

 

burner orifice

 

2. Damaged burner

2. Replace damaged burner

 

3. Gas control defective

3. Replace gas control

 

 

 

Yellow flame in front

1. Not enough air

1. Check burner(s) for dirt and debris. If

burner during burner

 

found, clean burner(s) (see Cleaning

combustion

 

and Maintenance, page 23)

 

2. Gas control defective

2. Replace gas control

 

 

 

Slight smoke or odor

1. Residues from manufacturing

1. Problem will stop after a few hours of

during initial operation

processes and logs curing

operation

 

 

 

Moisture/condensation

1. Not enough combustion/

1. Refer to Air for Combustion and

noticed on windows

ventilation air

Ventilation requirements (page 5)

103448

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Vanguard Heating VS24PR, VS30PR, VS18PR Trouble, Shooting, Continued, See Wiring Diagram, page, and Maintenance, page