Desa EFS33NRA, VSGF33NRA Troubleshooting, Continued, Observed Problem, Possible Cause, Remedy

Models: VSGF33NRA EFS33NRA

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(see Cleaning and Mainte-

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

ODS/pilot lights but flame

1. Control knob not fully pressed in

1.

Press in control knob fully

goes out when control knob is

2. Control knob not pressed in

2.

After ODS/pilot lights, keep

released

 

long enough

 

control knob pressed in 30

 

3.

Equipment shutoff valve not

 

seconds

 

3.

Fully open equipment shutoff

 

 

fully open

 

valve

 

4.

Pilot flame not touching

4.

A) Contact local natural or

 

 

thermocouple, which allows

 

propane/LP gas company

 

 

thermocouple to cool, caus-

 

 

 

 

ing pilot flame to go out. This

 

B) Clean ODS/pilot (see

 

 

problem could be caused by

 

Cleaning and Maintenance,

 

 

one or both of the following:

 

page 23) or replace ODS/pilot

 

 

A) Low gas pressure

 

assembly

 

 

B) Dirty or partially clogged

 

 

 

 

ODS/pilot

 

 

 

5.

Thermocouple connection

5.

Hand tighten until snug, then

 

 

loose at control valve

 

tighten 1/4 turn more

 

6.

Thermocouple damaged

6.

Replace pilot assembly

 

7.

Control valve damaged

7.

Replace control valve

 

 

 

 

Burners does not light after

1. Inlet gas pressure is too low

1.

Contact local natural or pro-

ODS/pilot is lit

2.

Burner orifice(s) clogged

 

pane/LP gas company

 

2.

Clean burner(s) (see Cleaning

 

 

 

 

and Maintenance, page 23) or

 

3.

Thermopile leads disconnect-

 

replace burner orifice(s)

 

3.

Reconnect leads (see Wiring

 

 

ed or improperly connected

 

Diagram, page 24)

 

4.

Burner will not come on in

4.

Replace battery in transmitter

 

 

remote position

 

and receiver

 

 

 

 

Delayed ignition of one or both

1. Manifold pressure is too low

1.

Contact local natural or pro-

burners

2.

Burner orifice(s) clogged

 

pane/LP gas company

 

2.

Clean burner(s) (see Cleaning

 

 

 

 

and Maintenance, page 23) or

 

 

 

 

replace burner orifice(s)

 

 

 

 

Burner backfiring during com-

1. Burner orifice is clogged or

1.

Clean burner (see Cleaning

bustion

 

damaged

 

and Maintenance, page 23) or

 

 

 

 

replace burner orifice(s)

 

2.

Damaged burner

2.

Replace damaged burner

 

3.

Gas regulator defective

3.

Replace gas regulator

 

 

 

 

Slight smoke or odor during

1. Not enough air

1.

Check burner for dirt and

initial operation

 

 

 

debris. If found, clean burner

 

 

 

 

(see Cleaning and Mainte-

 

2.

Gas regulator defective

 

nance, page 23)

 

2.

Replace gas control

 

3.

Residues from manufacturing

3.

Problem will stop after a few

 

 

processes and logs curing

 

hours of operation

26

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Desa EFS33NRA, VSGF33NRA Troubleshooting, Continued, Observed Problem, Possible Cause, Remedy, see Cleaning and Mainte