30

TROUBLESHOOTING

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Burner does not light after ODS/pilot is lit

1.

Inlet gas pressure is too low

 

2.

Burner orifice is clogged

 

3.

Thermopile leads disconnected or im-

 

 

properly connected (Remote-Ready

 

 

Models Only)

 

4.

Burners will not come on in remote po-

 

 

sition (Remote-Ready Models Only)

1.Contact local natural or propane/LP gas company

2.Clean burner (see Cleaning and Mainte- nance, page 28) or replace burner orifice

3.Reconnect leads (see Wiring Diagram, page 33)

4.Replace battery in transmitter and receiver

Delayed ignition of burner

1.

Manifold pressure is too low

1.

Contact local natural or propane/LP gas

 

 

 

 

company

 

2.

Burner orifice is clogged

2.

Clean burner (see Cleaning and Mainte-

 

 

 

 

nance, page 28) or replace burner orifice

 

 

 

 

 

Burner backfiring during combustion

1.

Burner orifice is clogged or damaged

1.

Clean burner (see Cleaning and Main-

 

 

 

 

tenance, page 28) or replace burner

 

 

 

 

orifice

 

2.

Damaged burner

2.

Replace damaged burner

 

3.

Gas regulator defective

3.

Replace gas regulator

 

4.

Inlet gas pressure is too low

4.

Contact local natural or propane/LP gas

 

 

 

 

company

 

 

 

 

 

Slight smoke or odor during initial operation

1.

Residues from manufacturing processes

1.

Problem will stop after a few hours of

 

 

and log curing

 

operation

 

2.

Not enough air

2.

Check burner for dirt and debris. If

 

 

 

 

found, clean burner (see Cleaning and

 

 

 

 

Maintenance, page 28)

 

3.

Gas regulator defective

3.

Replace gas regulator

 

 

 

 

 

Fireplace 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

 

 

 

 

natural gas company

 

3.

Air passageways on fireplace blocked

3.

Observe minimum installation clear-

 

 

 

 

ances (see pages 9 through 11)

 

4.

Dirty or partially clogged burner orifice

4.

Clean burner (see Cleaning and Mainte-

 

 

 

 

nance, page 28) 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 fireplace off when using furniture polish, wax, carpet cleaners, or similar products

Moisture/condensation noticed on windows 1. Not enough combustion/ventilation air

1. Refer to Air for Combustion and Venti-

 

lation requirements (page 6)

For..com

107032-01F

Page 29 Page 31
Page 30
Image 30
Desa VMH10TNB, EFS26PR, VMH26PRA, VMH26NRA installation manual Observed Problem Possible Cause, Remedy
Page 29 Page 31

VMH10TNB, VMH26NRA, EFS26PR, VMH26PRA specifications

Desa VMH26PRA, EFS26PR, VMH10TNB, and VMH26NRA are notable models in the versatile and efficient heater category that cater to diverse heating needs. Each unit incorporates advanced technologies and features designed to provide reliable warmth while ensuring user convenience.

The Desa VMH26PRA is known for its robust design and impressive performance. Featuring a powerful output, it efficiently warms up spaces making it ideal for larger areas. The model is equipped with a digital thermostat that allows for precise temperature control, providing users the ability to set and maintain their desired warmth effortlessly. Additionally, its safety features, including an automatic shut-off mechanism, ensure peace of mind during operation.

EFS26PR stands out for its energy efficiency and eco-friendly attributes. This model utilizes innovative heating technology that minimizes energy consumption while maximizing output. An integrated fan promotes enhanced air circulation, ensuring that heat disperses evenly throughout the room. The compact design and portability mean it can be easily moved from one location to another, making it a perfect choice for both residential and commercial spaces.

VMH10TNB is notable for its unique combination of performance and aesthetic appeal. This model features a sleek contemporary design that can complement various interior styles. With adjustable heat settings and a user-friendly control panel, this unit aims to provide customized comfort. Moreover, the advanced infrared heating technology utilized in VMH10TNB distributes warmth without compromising air quality, making it a wise choice for those with respiratory sensitivities.

Lastly, the VMH26NRA model is amplified by its high-capacity heating potential. Perfect for colder climates, it boasts a powerful heat output that ensures rapid warmth in a short time. The model is engineered with user-friendly touch controls and a programmable timer that enhances convenience. Safety remains a priority with this heater, which includes a tip-over switch and overheat protection, ensuring secure operation at all times.

In summary, the Desa VMH26PRA, EFS26PR, VMH10TNB, and VMH26NRA all bring distinct features and technologies designed to cater to various heating requirements. Whether looking for advanced safety features, energy efficiency, or stylish design, these models present excellent options for effective heating solutions.
Top Page Image Contents