TROUBLE- SHOOTING

OBSERVED

POSSIBLE

REMEDY

PROBLEM

CAUSE

 

 

 

Continued

Burner does not light

1.

Burner orifice is

after ODS/pilot is lit

 

clogged

 

2.

Burner orifice diameter

 

 

is too small

 

3.

Inlet gas pressure is

 

 

too low

1.Clean burner (see Cleaning and Mainte- nance, page 25) or replace burner orifice

2.Replace burner orifice

3.Contact local propane/ LP gas company

Delayed ignition of

1.

Manifold pressure is

burner

 

too low

 

2.

Burner orifice is

 

 

clogged

1.Contact local propane/ LP gas company

2.Clean burner (see Cleaning and Mainte- nance, page 25) or replace burner orifice

Burner backfiring

1. Burner orifice is

during combustion

clogged or damaged

2. Burner damaged

3. Low inlet gas pressure

4. Gas regulator defective

1.Clean burner (see Cleaning and Mainte- nance, page 25) or replace burner orifice

2.Replace burner pressure

3.Contact local propane/ LP gas company

4.Replace gas regulator

Yellow flame during

1. Not enough air

burner combustion

 

2. Gas regulator defective

1.Check burner for dirt and debris. If found, clean burner (see Cleaning and Mainte- nance, page 25)

2.Replace gas regulator

Slight smoke or odor

1. Residues from manu-

1. Problem will stop after a

during initial operation

facturing processes

few hours of operation

 

 

 

Fireplace produces a

1.

Turning control knob

whistling noise when

 

to HI position when

burner is lit

 

burner is cold

 

2.

Air in gas line

3. Air passageways on fireplace blocked

4. Dirty or partially clogged burner orifice

1.Turn control knob to LO position and let warm up for a minute

2.Operate burner until air is removed from line. Have gas line checked by local propane/LP gas company

3.Observe minimum installation clearances (see Figures 6 and 7 page 11)

4.Clean burner (see Clean- ing and Maintenance, page 25) or replace

burner orifice

27

 

102886

Page 27
Image 27
Vanguard Heating VMH26TPB installation manual Observed Possible Remedy Problem Cause