FMI ccl3924pta-nta 用户手册

124971-01C

23

1. Control knob not fully 

pressed in

2. Control knob not pressed in 

long enough

3. Equipment shutoff valve not 

fully open

4. Pilot flame not touching 

thermocouple,  which  al-

lows thermocouple to cool, 

causing  pilot  flame  to  go 

out. This problem could be 

caused by one or both of 

the following:

  A) Low gas pressure

  B) Dirty or partially clogged 

ODS/pilot 

5. Thermocouple  connection 

loose at control valve 

6. Thermocouple damaged

7. Control valve damaged

1. Burner orifice clogged

2. Inlet gas pressure is too 

low

1. Manifold pressure is too 

low

2. Burner orifice clogged

 

1. Burner orifice is clogged or 

damaged

2. Damaged burner

3. Gas regulator defective

1. Not enough air

2. Gas regulator defective

3. Residues from manufac-

turing processes and logs 

curing

1. Press in control knob fully

2. After ODS/pilot lights, keep 

control knob pressed in 30 

seconds

3. Fully open equipment shut-

off valve

4. A) Contact local propane/

LP or natural gas com-

pany

 

  B) Clean ODS/pilot (see 

Cleaning and Maintenance, 

page 20) or replace ODS/

pilot assembly 

5. Hand  tighten  until  snug, 

then tighten 1/4 turn more

6. Replace pilot assembly

7. Replace control valve

1. Clean burner (see Cleaning 

and Maintenance, page 20) 

or replace burner orifice

2. Contact local propane/LP 

or natural gas company

1. Contact local propane/LP 

or natural gas company

2. Clean burner (see Cleaning 

and Maintenance, page 20) 

or replace burner orifice

1. Clean burner (see Cleaning 

and Maintenance, page 20) 

or replace burner orifice

2. Replace damaged burner

3. Replace gas regulator

1. Check burner for dirt and 

debris.  If  found,  clean 

burner (see Cleaning and 

Maintenance, page 20)

2. Replace gas regulator

3. Problem will stop after a few 

hours of operation

ODS/pilot  lights  but  flame 

goes out when control knob 

is released

Burner doesn't light after 

ODS/pilot is lit

Delayed ignition of burner

Burner backfiring during  

combustion

Slight smoke or odor during 

initial operation