TROUBLE-

OBSERVED

POSSIBLE

 

 

PROBLEM

CAUSE

REMEDY

SHOOTING

 

 

 

 

 

When ignitor button

1. Gas supply turned off or

1.

Turn on gas supply or

Continued

is pressed, there is

 

manual shutoff valve

 

open manual shutoff

 

 

 

 

spark at ODS/pilot

 

closed

 

valve

 

but no ignition

2.

Control knob not in

2.

Turn control knob to

 

 

 

PILOT position

 

PILOT position

 

 

3.

Control knob not

3.

Press in control knob

 

 

 

pressed in while in

 

while in PILOT position

 

 

 

PILOT position

 

 

 

 

4.

Air in gas lines when

4.

Continue holding down

 

 

 

installed

 

control knob. Repeat

 

 

 

 

 

igniting operation until

 

 

 

 

 

air is removed

 

 

5.

ODS/pilot is clogged

5.

Clean ODS/pilot (see

 

 

 

 

 

Cleaning and Mainte-

 

 

 

 

 

nance, page 28) or

 

 

 

 

 

replace ODS/pilot

 

 

 

 

 

assembly

 

 

6.

Gas regulator setting is

6.

Replace gas regulator

 

 

 

not correct

 

 

 

 

 

 

 

 

 

ODS/pilot lights but

1.

Control knob not fully

1.

Press in control knob

 

flame goes out when

 

pressed in

 

fully

 

control knob is

2.

Control knob not

2.

After ODS/pilot lights,

 

released

 

pressed in long enough

 

keep control knob

 

 

 

 

 

pressed in 30 seconds

 

 

3.

Manual shutoff valve

3.

Fully open manual shut-

 

 

 

not fully open

 

off valve

 

 

4.

Thermocouple connec-

4.

Hand tighten until snug,

 

 

 

tion loose at control

 

then tighten 1/4 turn

 

 

 

valve

 

more

 

 

5.

Pilot flame not touching

5.

A) Contact local pro-

 

 

 

thermocouple, which

 

pane/LP g s company

 

 

 

allows thermocouple to

 

 

 

 

 

cool, causing pilot flame

 

B) Clean ODS/pilot (see

 

 

 

to go out. This problem

 

Cleaning and Mainte-

 

 

 

could be caused by one

 

nance, page 28) or

 

 

 

or both of the following:

 

replace ODS/pilot

 

 

 

A) Low gas pressure

 

assembly

 

 

 

B) Dirty or partially

 

 

 

 

 

clogged ODS/pilot

 

 

 

 

6.

Thermocouple damaged

6.

Replace thermocouple

 

 

7.

Control valve damaged

7.

Replace control valve

 

 

8.

On thermostat models,

8.

Wait one minute for

 

 

 

safety interlock system

 

safety interlock system

 

 

 

has been triggered

 

to reset. Repeat ignition

 

 

 

 

 

operation

Continued

29

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Page 29
Image 29
Desa FPVF33PR installation manual Cleaning and Mainte

FPVF33PR specifications

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