TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

When ignitor button is pressed,

1. Gas supply turned off or equip-

1.

Turn on gas supply or open

there is spark at pilot but no

 

ment shutoff valve closed

2.

equipment shutoff valve

ignition

2. Gas control knob not in PI-

Turn gas control knob to PILOT

 

3.

LOT position

3.

position

 

Gas control knob not pressed

Press in gas control knob while

 

4.

in while in PILOT position

4.

in PILOT position

 

Air in gas lines when in-

Continue holding down con-

 

 

stalled

 

trol knob. Repeat igniting

 

5. Depleted gas supply (propane/

 

operation until air is removed

 

5. Contact local propane/LP gas

 

6.

LP models only)

6.

company

 

Pilot is clogged

Clean pilot (see Cleaning and

 

 

 

 

Maintenance, page 37) or re-

 

7.

Gas regulator setting is not

7.

place pilot assembly

 

Replace gas regulator

 

 

correct

 

 

 

Pilot lights but flame goes out

1. Gas control knob not fully

1.

Press in gas control knob

when control knob is released

2.

pressed in

2.

fully

 

Gas control knob not pressed

After pilot lights, keep gas

 

 

in long enough

 

control knob pressed in 30

 

3.

Equipment shutoff valve not

3.

seconds

 

Fully open equipment shutoff

 

4.

fully open

4.

valve

 

Pilot flame not touching

A) Contact local natural or

 

 

thermocouple, which allows

 

propane/LP gas company

 

 

thermocouple to cool, caus-

 

B) Clean pilot (see Cleaning

 

 

ing pilot flame to go out. This

 

and Maintenance, page 37)

 

 

problem could be caused by

 

or replace pilot assembly

 

 

one or both of the following:

 

 

 

 

 

A) Low gas pressure

 

 

 

 

 

B) Dirty or partially clogged

 

 

 

 

5.

pilot

5.

Hand tighten until snug, then

 

Thermocouple connection

 

6.

loose at control valve

6.

tighten 1/4 turn more

 

Thermocouple damaged

Replace pilot assembly

 

7.

Control valve damaged

7.

Replace control valve

 

 

 

 

 

Burner does not light after pilot

1. Burner orifice clogged

1.

Clean burner (see Cleaning

is lit

 

 

 

and Maintenance, page 37) or

 

2.

Inlet gas pressure is too low

2.

replace burner orifice

 

Contact local propane/LP or

 

3.

Thermopile leads disconnect-

3.

natural gas company

 

Reconnect leads to TP & TPTH

 

4.

ed or improperly connected

4.

terminals on control valve

 

Thermopile is defective

Replace thermopile

 

 

 

 

 

Delayed ignition burner

1. Manifold pressure is too low

1.

Contact local propane/LP or

 

2.

Burner porting or orifice

2.

natural gas company

 

Clean burner (see Cleaning

 

 

clogged

 

and Maintenance, page 37) or

 

 

 

 

replace burner orifice

 

116035-01E

www.desatech.com

39

Page 38 Page 40
Page 39
Image 39
Desa V)CD36RN When ignitor button is pressed, Turn on gas supply or open, LOT position Position, Seconds, Low gas pressure
Page 38 Page 40

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