TROUBLESHOOTING

DFX & DBX Series Vent Free Fireplaces

WARNING

If the gas quality is bad, your pilot may not stay lit, the burners may produce soot and the heater may backfire when lit. If the gas quality or pressure is low, contact your local gas supplier immediately.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

ODS/pilot lights, but flame

1. Control knob not fully pressed in.

1.

Press in control knob fully.

goes out when control knob is

2. Control knob not pressed in long

2.

After ODS/pilot lights, keep control

released.

 

enough.

 

knob pressed in for 30 seconds.

 

3.

Manual shutoff valve not fully open.

3.

Fully open manual shutoff valve.

 

4.

Thermocouple connection loose at control

4.

Hand tighten thermocouple connec-

 

 

valve.

 

tion until snug, then tighten 1/4 turn

 

 

 

 

more.

 

5.

Pilot flame not touching thermocouple,

5a.Contact local gas company.

 

 

which allows thermocouple to cool, caus-

5b.Clean pilot with vacuum cleaner.

 

 

ing pilot flame to go out. This problem could

 

 

 

 

be caused by either low gas pressure, or a

 

 

 

 

dirty or partially clogged ODS/pilot.

6.

Replace thermocouple.

 

6.

Thermocouple damaged.

 

7.

Control valve damaged.

7.

Replace control valve.

 

 

 

 

 

Burner does not light after ODS/

1.

Burner orifice is clogged.

1.

Clean orifice.

pilot is lit.

2.

Burner orifice diameter is too small.

2.

Replace burner orifice.

 

3.

Inlet gas pressure is too low.

3.

Contact qualified service person.

 

 

 

 

Burner backfires during com-

1. Manifold pressure is too low.

1.

Contact local gas company.

bustion.

2.

Burner orifice is clogged.

2.

Clean burner or replace burner ori-

 

 

 

 

fice.

Slight smoke or odor during

1. Burner orifice is clogged or damaged.

1.

Clean burner or replace burner ori-

initial operation.

2.

Burner is damaged.

 

fice.

 

3.

Gas regulator defective.

2.

Replace burner.

 

 

 

3.

Replace gas regulator.

Logs appear to smoke after initial operation.

1.Vapors from paint or curing process of logs.

2.Vapors or smoke continue after heater has run with damper or window open for several hours.

1.Problem will stop after a few hours of operation. Run the heater with the damper open if you have one, or open a window for the first few hours.

2.Log heater is intended to be smoke- less. Turn OFF heater and call quali- fied service person.

Heater produces a whistling 1.

Turning control knob to HIGH position

noise when burner is lit.

when burner is cold.

2.

Air in gas line.

3. Dirty or partially clogged burner orifices.

1.Turn control knob to LOW position and let warm up for a minute.

2.Operate burner until air is removed from line. Have gas line checked by local gas company.

3.Clean burner or replace burner ori- fice.

No gas to pilot.

1. LP-regulator shut down due to inlet pres-

 

sure too high.

1.Verify LP tank regulator is installed and set at 11" to 13" w.c.

2.Replace regulator on heater.

33D4047

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Monessen Hearth DBX24C manual Troubleshooting, Observed Problem Possible Cause Remedy
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DBX24C specifications

The Monessen Hearth DBX24C is a remarkable addition to the landscape of home heating solutions. Known for its efficient performance and modern design, this direct vent gas fireplace offers both functionality and aesthetic appeal, making it a top choice among homeowners.

One of the standout features of the DBX24C is its sleek, contemporary appearance. The fireplace has a clean face design that maximizes the viewing area of the flames, creating a captivating focal point in any room. It is available in various decorative options, including multiple media layouts, which allow users to personalize their fireplace to match their interior decor.

Efficiency is a key characteristic of the Monessen Hearth DBX24C. With an impressive efficiency rating, it provides effective heating while utilizing fuel resources wisely. The direct vent design ensures that combustion gases are expelled outside, promoting safer indoor air quality and allowing for versatile installation options, including exterior walls and through the roof.

Equipped with advanced technologies, the DBX24C boasts an impressive burner system that produces an alluring flame pattern, replicating the look of real wood. This fireplace uses high-quality ceramic glass that not only provides durability but also enhances heat output. The ceramic glass allows for excellent visibility of the flames while reflecting heat back into the living space.

The DBX24C features user-friendly controls, with options for remote operation and adjustable flame settings. This enables homeowners to easily customize their heating experience, whether they desire a cozy ambiance for gatherings or a warmer atmosphere on chilly nights. Additionally, its minimal maintenance requirements make it a practical choice for busy homeowners.

In terms of safety, the Monessen Hearth DBX24C incorporates several built-in features, such as heat sensors that monitor the unit’s temperature and safety shutoff systems that activate if the fireplace reaches excessive heat levels. This commitment to safety further enhances its appeal for families.

In summary, the Monessen Hearth DBX24C offers an exceptional blend of efficiency, style, and technology. Its modern design, customizable features, and commitment to safety make it an outstanding choice for those seeking a reliable and aesthetically pleasing heating solution for their homes. Whether you are looking to enhance your living space with a beautiful centerpiece or simply desire effective warmth, this gas fireplace delivers on all fronts.
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