TROUBLESHOOTING

Continued

OBSERVED PROBLEM POSSIBLE CAUSE

REMEDY

When ignitor button is pressed, there is spark at ODS/pilot but no ignition (manual ignition mode)

1.Gas supply turned off or equipment shutoff valve closed

2.Control knob not in PILOT position

3.Air in gas lines when in- stalled

4.Depleted gas supply (pro- pane/LP only)

5.ODS/pilot is clogged

6.Gas regulator setting is not correct

1.Turn on gas supply or open equipment shutoff valve

2.Turn control knob to PILOT position full counterclockwise

3.Continue holding control knob in full counterclockwise posi- tion. Repeat igniting operation until air is removed

4.Contact local propane/LP gas company

5.Clean ODS/pilot (see Clean- ing and Maintenance, page

25)or replace ODS/pilot as- sembly

6.Replace gas regulator

ODS/pilot lights but flame goes

1. Control knob not fully turned

1.

Turn control knob fully coun-

out when control knob is released

 

counterclockwise

 

terclockwise

(manual ignition mode)

2. Control knob not held long

2.

After ODS/pilot lights, hold

 

 

enough

 

control knob for 30 seconds

 

3.

Equipment shutoff valve not

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-

 

B) Clean ODS/pilot (see

 

 

ing pilot flame to go out. This

 

Cleaning and Maintenance,

 

 

problem could be caused by

 

page 25) or replace ODS/pilot

 

 

one or both of the following:

 

assembly

 

 

A) Low gas pressure

 

 

 

 

B) Dirty or partially clogged

 

 

 

 

OD S/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

113134-01B

www.desatech.com

29

Page 29
Image 29
Desa VTGF33NRB Enough, Propane/LP gas company, Clean ODS/pilot see, Problem could be caused by, Assembly, Low gas pressure

VTGF33NRB, VTGF33PRB specifications

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