Desa VN2800BTD, VN2000BTD Troubleshooting, Observed Problem Possible Cause Remedy

Page 14

®

BLUE FLAME NATURAL GAS HEATER

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 heater and let cool before servicing. Only a qualified ser- vice person should service and repair heater.

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

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

When ignitor button is pressed, there is no

1.

Ignitor electrode positioned wrong

1.

Replace ignitor

spark at ODS/pilot

2.

Ignitor electrode broken

2.

Replace ignitor

 

3.

Ignitor electrode not connected to igni-

3.

Reconnect ignitor cable

 

 

tor cable

 

 

 

4.

Ignitor cable pinched or wet

4.

Free ignitor cable if pinched by any

 

 

 

 

metal or tubing. Keep ignitor cable dry

 

5.

Broken ignitor cable

5.

Replace ignitor cable

 

6.

Bad piezo ignitor

6.

Replace piezo ignitor

 

 

 

 

 

When ignitor button is pressed, there is

1.

Gas supply turned off or equipment

1.

Turn on gas supply or open equipment

spark 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. Re-

 

 

 

 

peat igniting operation until air is removed

 

5.

ODS/pilot is clogged

5.

Clean ODS/pilot (see Cleaning and

 

 

 

 

Maintenance, page 13) or replace ODS/

 

 

 

 

pilot assembly

 

6.

Gas regulator setting is not correct

6.

Replace gas regulator

 

 

 

 

 

ODS/pilot lights but flame goes out when

1.

Control knob not fully pressed in

1.

Press in control knob fully

control knob is released

2.

Control knob not pressed in long enough

2.

After ODS/pilot lights, keep control

 

 

 

 

knob pressed in 30 seconds

 

3.

Safety interlock system has been triggered

3.

Wait one minute for safety interlock sys-

 

 

 

 

tem to reset. Repeat ignition operation

 

4.

Equipment shutoff valve not fully open

4.

Fully open equipment shutoff valve

 

5.

Thermocouple connection loose at con-

5.

Hand tighten until snug, then tighten 1/4

 

 

trol valve

 

turn more

 

6.

Pilot flame not touching thermocouple,

6.

A) Contact local natural gas company

 

 

which allows thermocouple to cool,

 

 

 

 

causing pilot flame to go out. This prob-

 

B) Clean ODS/pilot (see Cleaning and

 

 

lem could be caused by one or both of

 

Maintenance, page 13) or replace ODS/

 

 

the following:

 

pilot assembly

 

 

A) Low gas pressure

 

 

 

 

B) Dirty or partially clogged ODS/pilot

 

 

 

7.

Thermocouple damaged

7.

Replace thermocouple

 

8.

Control valve damaged

8.

Replace control valve

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Contents Blue Flame VENT-FREE Natural GAS Heater What to do if YOU Smell GASSafety Information Blue Flame Natural GAS HeaterLocal Codes Product FeaturesProduct Identification UnpackingUnusually Tight Construction AIR for Combustion and VentilationProviding Adequate Ventilation Confined and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Check GAS Type InstallationInstallation Items Locating HeaterInstalling Heater to Wall Placing Heater On Mounting Bracket Installing Bottom Mounting ScrewsAttaching Mounting Bracket To Wall Connecting to GAS Supply Typical Inlet Pipe DiametersPressure Testing Heater Gas Connections For Your Safety Read Before LightingPressure Testing Gas Supply Piping System Operating HeaterTo Turn OFF GAS To Appliance Manual Lighting ProcedureLighting Instructions Thermostat Control OperationCleaning and Maintenance Inspecting BurnerTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Top Gas leak. See Warning statement atAccessories SpecificationsReplacement Parts Technical ServiceVN2000BTD VN2800BTD ODS/Pilot AssemblyIllustrated Parts Breakdown Parts List Under Replacement Parts on page 17 of this manualWarranty Information

VN2000BTD, VN2800BTD specifications

The Desa VN2800BTD and VN2000BTD are two advanced space heaters that represent the pinnacle of technology and design in the heating industry. Both models are engineered for efficiency, ensuring warmth and comfort in various settings, from homes to workshops.

One of the primary features of the VN2800BTD and VN2000BTD is their versatility in application. They are ideal for supplemental heating, capable of warming up rooms quickly and effectively with an easy-to-use design. The VN2800BTD boasts an output of 28,000 BTUs, while the VN2000BTD offers a slightly lower but still robust output of 20,000 BTUs. This makes them suitable for a diverse range of spaces and heating needs.

A key characteristic of these models is their advanced technology, which includes a forced air heating mechanism. This system allows heated air to circulate rapidly throughout the room, providing even warmth without the cold spots often found in traditional heaters. Both units are fueled by propane, making them highly efficient and eco-friendly compared to electric options.

Safety is another significant aspect of the Desa VN2800BTD and VN2000BTD. These models are equipped with automatic shut-off features that activate in case of a malfunction or if the heater tips over. Additionally, they have built-in oxygen depletion sensors that monitor air quality, ensuring safe operation in enclosed spaces. This focus on user safety reflects Desa's commitment to providing reliable heating solutions.

The design of the VN2800BTD and VN2000BTD is pragmatic and attractive, allowing them to blend seamlessly into any environment. They come with a durable construction that ensures longevity, even under demanding conditions. Portability is another benefit; both models often feature handles or wheels that make it easy to transport them from one area to another, enhancing their utility.

Easy ignition systems are another highlight, with many units incorporating a piezo ignition feature that allows for quick and reliable starts. This user-friendly approach minimizes the hassle often associated with traditional heating methods.

In summary, the Desa VN2800BTD and VN2000BTD heaters are exemplary products that combine powerful heating capabilities with safety and user convenience. Their advanced technology and thoughtful features make them an outstanding choice for anyone looking to enhance their comfort through effective space heating solutions.