FIREPLACE MANUFACTURERS INCORPORATED

UNVENTED PROPANE/LP GAS LOG HEATER

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Burner does not light after ODS/pilot is lit

1.

Burner orifice clogged

1.

Clean burner (see Cleaning and Mainte-

 

 

 

 

 

nance, page 20) or replace burner orifice

 

 

2.

Inlet gas pressure is too low

2.

Contact local propane/LP gas company

 

 

3.

Thermopile leads disconnected or im-

3.

Reconnect leads (see Wiring Diagram,

 

 

 

properly connected

 

page 21)

 

 

4.

Burners will not come on in remote

4.

Replace battery in transmitter and receiver

 

 

 

position

 

 

 

 

 

 

 

 

Delayed ignition burner

1.

Manifold pressure is too low

1.

Contact local propane/LP gas company

 

 

2.

Burner orifice clogged

2.

Clean burner (see Cleaning and Mainte-

 

 

 

 

 

nance, page 20) or replace burner orifice

 

 

 

 

 

Burner backfiring during combustion

1.

Burner orifice is clogged or damaged

1.

Clean burner (see Cleaning and Mainte-

 

 

 

 

 

nance, page 20) or replace burner orifice

 

 

2.

Damaged burner

2.

Replace damaged burner

 

 

3.

Gas regulator defective

3.

Replace gas control

 

 

 

 

 

 

Slight smoke or odor during initial operation

1.

Not enough air

1.

Check burner for dirt and debris. If

 

 

 

 

 

found, clean burner (see Cleaning and

 

 

 

 

 

Maintenance, page 20)

 

 

2.

Gas regulator defective

2.

Replace gas control

 

 

3.

Residues from manufacturing processes

3.

Problem will stop after a few hours of

 

 

 

and logs curing

 

operation

 

 

 

 

 

Moisture/condensation noticed on windows

1.

Not enough combustion/ventilation air

1.

Refer to Air for Combustion and Venti-

 

 

 

 

 

lation requirements (page 4)

 

 

 

 

 

Heater produces a whistling noise when

1.

Turning control knob to HI position

1.

Turn control knob to LO position and

burner is lit

 

when burner is cold

 

let warm up for a minute

 

 

2.

Air in gas line

2.

Operate burner until air is removed from

 

 

 

 

 

line. Have gas line checked by local pro-

 

 

 

 

 

pane/LP gas company

 

 

3.

Air passageways on heater blocked

3.

Observe minimum installation clear-

 

 

 

 

 

ances (see pages 7 through 9)

 

 

4.

Dirty or partially clogged burner orifice

4.

Clean burner (see Cleaning and Mainte-

 

 

 

 

 

nance, page 20) or replace burner orifice

White powder residue forming within burner box or on adjacent walls or furniture

1.When heated, vapors from furniture pol- ish, wax, carpet cleaners, etc. may turn into white powder residue.

1.Turn heater off when using furniture polish, wax, carpet cleaners, or similar products

Remote does not function (GHRC Series and GHRCTA Series only)

1.Battery is not installed or battery power is low

1.Replace 9-volt batteries in receiver and remote control

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FMI FVF24PW, FVF18PW, FVF30PW installation manual Observed Problem Possible Cause Remedy, Maintenance
Page 17 Page 19

FVF18PW, FVF30PW, FVF24PW specifications

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