14

TROUBLESHOOTING

TROUBLESHOOTING

Note: For additional help, visit DESA International’s technical service web site at www.desatech.com.

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

WARNING: Turn off and un- plug appliance and let cool before servicing.Only a qualified service person should service and repair

CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot.This can damage ODS/

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

When ignitor button is pressed, there is no

1.

Ignitor electrode not connected to ignitor

1.

Reconnect ignitor cable

spark at ODS/pilot

 

cable

 

 

 

 

2.

Ignitor cable pinched or wet

2.

Free ignitor cable if pinched by any

 

 

 

 

metal or tubing. Keep ignitor cable dry

 

3.

Piezo ignitor nut is loose

3.

Tighten nut holding piezo ignitor to base

 

 

 

 

panel of log set. Nut is located behind

 

 

 

 

base panel.

 

4.

Broken ignitor cable

4.

Replace ignitor cable

 

5.

Bad piezo ignitor

5.

Replace piezo ignitor

 

6.

Ignitor electrode positioned wrong or

6.

Replace pilot assembly for remote-ready

 

 

broken

 

units; Replace ignitor electrode for vari-

 

 

 

 

able manually controlled units

 

 

 

 

 

 

When ignitor button is pressed, there is spark

1.

Gas supply turned off or equipment

1.

Turn on gas supply or open equipment

at ODS/pilot but no ignition

 

shutoff valve closed

 

shutoff valve

 

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.

Depleted gas supply (propane/LP

5.

Contact local propane/LP gas company

 

 

only)

6.

Clean ODS/pilot (see Cleaning and

 

6.

ODS/pilot is clogged

 

Maintenance, page 13) or replace

 

 

 

 

ODS/pilot assembly

 

7.

Gas regulator setting is not correct

7.

Replace gas regulator

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

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 allows thermocouple to cool, causing pilot flame to go out. This prob- lem 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 con- trol valve

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 sys- tem to reset. Repeat ignition operation

4.Fully open equipment shutoff valve

5.A) Contact local natural or propane/LP gas company

B) Clean ODS/pilot (see Cleaning and Maintenance, page 13) or replace ODS/ pilot assembly

6.Hand tighten until snug, then tighten 1/4 turn more

7.Replace pilot assembly

8.Replace control valve

For more information, visit www.desatech.com

111826-02C

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Desa VTD-24N-PDG, VTD-24N-BTB, VTD-18P-PDG installation manual Troubleshooting, Observed Problem Possible Cause Remedy
Page 13 Page 15

VTD-18P-PDG, VTD-24N-PDG, VTD-24N-BTB specifications

The Desa VTD-24N-BTB, VTD-24N-PDG, and VTD-18P-PDG are advanced heating solutions that reflect the latest innovations in consumer comfort technology. Designed for residential and commercial applications, these units are recognized for their efficiency, performance, and user-friendly features.

The Desa VTD-24N-BTB model is a powerful heater that operates on a 24,000 BTU output. It features a sleek, modern design that allows it to integrate seamlessly into various room aesthetics. One of its standout characteristics is its variable flame height control, enabling users to adjust the heat output according to their needs. This function contributes not only to comfort but also to energy efficiency, reducing unnecessary fuel consumption. Built with high-quality materials, the VTD-24N-BTB is designed for durability and longevity, making it a reliable heating choice for years to come.

Similarly, the VTD-24N-PDG model shares several common features with the BTB version but focuses on a different aesthetic and design philosophy. It is equipped with a programmable thermostat that enhances user convenience, allowing homeowners to set schedules according to their lifestyle. This model also includes a high-efficiency fan system that circulates warm air more effectively throughout the space, ensuring even temperature distribution. The VTD-24N-PDG is an excellent choice for consumers looking for a balance between modern styling and advanced heating technology.

The VTD-18P-PDG model, while slightly smaller with an 18,000 BTU output, does not compromise on performance. It remains equipped with a plethora of features, including an easy-to-read LCD display that provides real-time information about temperature settings and system performance. This model is particularly appealing to those with limited space, offering a compact design without sacrificing heating capacity. The VTD-18P-PDG also includes safety features such as an automatic shut-off system, ensuring peace of mind for users.

All three models leverage advanced heating technologies, such as electronic ignition systems and adjustable flame technology, to maximize efficiency and comfort. With a commitment to environmentally-friendly solutions, these units utilize a low-emission combustion system, contributing to a reduced carbon footprint.

In summary, the Desa VTD-24N-BTB, VTD-24N-PDG, and VTD-18P-PDG heaters represent a blend of functionality, safety, and style. With their innovative features and efficiency-driven designs, they cater to diverse heating needs, making them an ideal investment for any modern living or working space.
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