Monessen Hearth CFX24, CFX32 manual Troubleshooting, Observed Problem Possible Cause Remedy

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CFX Vent Free Fireplace System

TROUBLESHOOTING

WARNING

Turn appliance OFF and allow to cool before servicing. Only a qualified service person should service and repair the heater.

Note: All troubleshooting items are listed in order of operation.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

When ignitor button is

1. Ignitor electrode positioned wrong.

1

Replace ignitor.

pressed, there is no spark

 

 

 

 

at ODS/pilot.

2.

Ignitor electrode is broken.

2.

Replace ignitor.

 

 

 

 

 

 

 

3.

Ignitor electrode not connected to ignitor

3.

Reconnect ignitor cable.

 

 

cable.

 

 

 

 

 

 

 

 

4.

Ignitor cable pinched or wet. Keep ignitor

4.

Free ignitor cable if pinched by any metal

 

 

cable dry.

 

or tubing.

 

 

 

 

 

 

5.

Broken ignitor cable.

5.

Replace ignitor cable.

 

 

 

 

 

 

6.

Bad piezo ignitor.

6.

Replace piezo ignitor.

 

 

 

 

Appliance produces

1. Appliance burning vapors from paint, hair

1.

Ventilate room. Stop using odor causing

unwanted odors.

 

spray, glues, etc.

 

products while heater is running.

 

 

 

 

 

 

2.

Gas leak.

2.

Locate and correct all leaks.

 

 

 

 

 

 

3.

Initial burn off

3.

Ventilate room and turn unit on high until

 

 

 

 

odor is gone. Odor should be gone after 2

 

 

 

 

to 3 hours of continuous use.

 

 

 

 

Appliance shuts off during

1. Not enough fresh air is available for

1.

Open window and/or door for ventilation.

use.

 

ODS/ pilot to operate.

 

 

 

 

 

 

 

 

2.

Low line pressure.

2.

Contact local gas company.

 

3.

ODS/pilot is partially clogged.

3.

Clean ODS/pilot.

 

 

 

 

 

 

4.

Defective Thermopile.

4.

Check wire connections. Check output

 

 

 

 

should be 500 milli-volts across TH/TP

 

 

 

 

and TP Terminals with ON/OFF switches

 

 

 

 

off.

 

 

 

 

 

 

5.

Restrictions in incoming air flow.

5.

Check for bottom riser on glass door,

 

 

 

 

sunken fireplace, excessive lava rock/

 

 

 

 

cinders densely packed against grate.

 

 

 

 

Gas odor even when

1. Gas leak.

1.

Locate and correct all leaks.

control knob is in OFF

 

 

 

 

2.

Control valve defective.

2.

Replace control valve.

position.

 

 

 

 

 

 

 

 

When ignitor button is

1. Gas supply turned off or manual shutoff

1.

Turn on gas supply or open manual shutoff

pressed, there is spark at

 

valve closed.

 

valve.

ODS pilot, but no ignition.

 

 

 

 

2.

Control knob not in PILOT position.

2.

Turn control knob to PILOT position.

 

 

 

 

 

 

 

3.

Control knob not pressed in while in

3.

Press in control knob while in PILOT

 

 

PILOT position.

 

position.

 

 

 

 

 

 

4.

Air in gas lines when installed.

4.

Continue holding down control knob.

 

 

 

 

Repeat igniting operation until air is

 

 

 

 

removed.

 

 

 

 

 

 

5.

ODS/pilot is clogged.

5.

Replace ODS/pilot assembly or get it

 

 

 

 

serviced.

 

 

 

 

 

 

6.

Gas regulator setting is not correct.

6.

Check incoming pressure. Replace gas

 

 

 

 

regulator.

 

 

 

 

 

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Contents Vent-free Fireplace Systems Models CFX24, CFX32 What to do if YOU Smell GASContents CFX Vent Free Fireplace SystemInstaller Important Safety InformationOwner Important Safety Information CodesProduct Features & specifications Gas SpecificationsOperation GAS pressuresFireplace & System Dimensions CFX24 CFX32Getting Started Handle with careAdequate Combustion and Ventilation AIR Fireplace Installation Do not Install the CFX Model in a Bedroom or BathroomClearances and Height Requirements General Installation Information Remove ScreenInstall Mantel Firebox to Mantel Installation Install Optional Firebrick Panels General Installation InformationInstalling gas piping to fireplace / burner system location Installation Items NeededConnect the GAS Check gas typeConnect the GAS Check GAS Pressure Electrical Wiring Milli-volt Connecting Optional Wall Switch or ThermostatConnect Remote Receiver Check System OperationLOG Placement Proper installation sequence CFX24LOG & Rockwool Placement Proper installation sequenceClean CFX32Check the pilot flame Flame appearanceCorrect log flame appearance Check the Burner Flame Operating InstructionsWhat to do if YOU Smell GAS Operating InstructionsMILLI-VOLT Control Lighting Instructions Cleaning and Servicing Match Lighting InstructionsBlower and Other Optional Equipment Optional EquipmentForced Air Kit FirebricksTroubleshooting Observed Problem Possible Cause RemedyTroubleshooting Replacement Parts CFX24 CFX32Replacement Parts Replacement Parts are Available Through Your Retailer Replacment PartsCFX Vent Free Fireplace System CFX Vent Free Fireplace System Lifetime Warranty Five Year WarrantyBasic Warranty If Warranty Service is NeededMhsc