Troubleshooting – FMI COMFORT FLAME CDCFPRB User Manual

Page 23

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124979-01C

23

POSSIbLE CAUSE

1. Control knob not fully

pressed in

2. Control knob not pressed in

long enough

3. Safety interlock system has

been triggered

4. Equipment shutoff valve not

fully open

5. 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

6. Thermocouple connection

loose at control valve

7. Thermocouple damaged
8. Control valve damaged

1. Inlet gas pressure is too

low

2. Burner orifice is clogged

3. Thermopile leads discon-

nected or improperly con-
nected (Remote-Ready
Models Only)

4. Burners will not come on in

remote position (Remote-
Ready Models Only)

1. Manifold pressure is too

low

2. Burner orifice is clogged

1. Burner orifice is clogged or

damaged

2. Damaged burner
3. Gas regulator defective
4. Inlet gas pressure is too

low

REMEDY

1. Press in control knob fully

2. After ODS/pilot lights, keep

control knob pressed in 30
seconds

3. Wait one minute for safety

interlock system to reset.
Repeat ignition operation

4. Fully open equipment shut-

off valve

5. A) Contact local natural or

propane/LP gas company


B) Clean ODS/pilot (see

Cleaning and Maintenance,
page 20) or replace ODS/
pilot assembly

6. Hand tighten until snug,

then tighten 1/4 turn more

7. Replace pilot assembly
8. Replace control valve

1. Contact local natural or

propane/LP gas company

2. Clean burner (see Cleaning

and Maintenance, page 20)
or replace burner orifice

3. Reconnect leads (see Wir-

ing Diagram, page 21)

4. Replace battery in transmit-

ter and receiver

1. Contact local natural or

propane/LP 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
4. Contact local natural or

propane/LP gas company

ObSERvED PRObLEM

ODS/pilot lights but flame
goes out when control knob
is released

Burner does not light after
ODS/pilot is lit

Delayed ignition of burner

Burner backfiring during com-
bustion

TRoUBlEsHooTiNG

Continued

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