TROUBLE-

 

 

OBSERVED

POSSIBLE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PROBLEM

CAUSE

REMEDY

 

SHOOTING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When ignitor button

1. Gas supply turned off

1.

Turn on gas supply or

 

Continued

 

 

 

 

 

is pressed, there is

 

or manual shutoff

 

open manual shutoff

 

 

 

 

 

 

 

 

 

 

spark at ODS/pilot

 

valve 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

 

 

 

 

 

 

PILOT position

 

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 22) 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.

Safety interlock system

3.

Wait one minute for

 

 

 

 

 

 

has been triggered

 

safety interlock system

 

 

 

 

 

 

 

 

to reset. Repeat

 

 

 

 

 

 

 

 

ignition operation

 

 

 

 

 

4.

Manual shutoff valve

4.

Fully open manual

 

 

 

 

 

 

not fully open

 

shut-off valve

 

 

 

 

 

5.

Thermocouple connec-

5.

Hand tighten until

 

 

 

 

 

 

tion loose at control

 

snug, then tighten 1/4

 

 

 

 

 

 

valve

 

turn more

 

 

 

 

 

6.

Pilot flame not touch-

6.

A) Contact local

 

 

 

 

 

 

ing thermocouple,

 

natural gas company

 

 

 

 

 

 

which allows thermo-

 

 

 

 

 

 

 

 

 

 

 

 

couple to cool, causing

 

B) Clean ODS/pilot

 

 

 

 

 

 

pilot flame to go out.

 

(see Cleaning and

 

 

 

 

 

 

This problem could be

 

Maintenance, page

 

 

 

 

 

 

caused by one or both

 

22) or replace ODS/

 

 

 

 

 

 

of the following:

 

pilot assembly

 

 

 

 

 

 

A) Low gas pressure

 

 

 

 

 

 

 

 

 

 

 

 

B) Dirty or partially

 

 

 

 

 

 

 

 

 

 

 

 

clogged ODS/pilot

 

 

 

 

 

 

 

 

 

 

 

7.

Thermocouple dam-

7.

Replace thermocouple

 

 

 

 

 

 

aged

 

 

 

 

 

 

 

 

 

 

 

8.

Control valve damaged

8.

Replace control valve

 

 

 

 

 

 

 

 

Continued

 

 

 

 

 

 

 

 

 

 

23

 

 

 

 

 

 

 

 

 

101809

Page 23
Image 23
Desa CFN2800BTB, VN2800BTB installation manual Trouble, Cleaning and Mainte

VN2800BTB, CFN2800BTB specifications

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