Desa FAS-5C, FA-5B, FA-3B, FAS-3C Troubleshooting, Observed Problem Possible Cause Remedy

Page 15

OWNER’S MANUAL

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 in, 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 control valve (piezo is part of

 

 

 

 

control valve)

 

 

 

 

 

ODS/pilot lights but flame goes out when

1.

Gas supply turned off or equipment

1.

Turn on gas supply or open equipment

control knob is released

 

shutoff valve closed

 

shutoff valve

 

2.

Control knob not fully pressed in while

2.

Fully press in control knob while press-

 

 

pressing ignitor button

 

ing ignitor button

 

3.

Air in gas lines when installed

3.

Continue holding down control knob. Re-

 

 

 

 

peat igniting operation until air is removed

 

4.

ODS/pilot is clogged

4.

Clean ODS/pilot (see Cleaning and

 

 

 

 

Maintenance, page 14 ) or replace ODS/

 

 

 

 

pilot assembly

 

5.

Gas regulator setting is not correct

5.

Replace gas regulator

 

6.

Control knob not in pilot position

6.

Turn control knob to pilot position

 

 

 

 

 

When ignitor button is pressed in, there is a

1.

Control knob not fully pressed in

1.

Press in control knob fully

spark at ODS/pilot but no ignition

2.

Control knob not pressed in long enough

2.

After ODS/pilot lights, keep control

 

 

 

 

knob pressed in 30 seconds

 

3.

Equipment shutoff valve not fully open

3.

Fully open equipment shutoff valve

 

4.

Thermocouple connection loose at con-

4.

Hand tighten until snug, then tighten

 

 

trol valve

 

1/4 turn more

 

5.

Pilot flame not touching thermocouple,

5.

A) Contact local natural gas company

 

 

which allows thermocouple to cool,

 

B) Clean ODS/pilot (see Cleaning and

 

 

causing pilot flame to go out. This prob-

 

Maintenance, page 14) or replace ODS/

 

 

lem could be caused by one or both of

 

pilot assembly

 

 

the following:

 

 

 

 

A) Low gas pressure

 

 

 

 

B) Dirty or partially clogged ODS/pilot

 

 

 

6.

Thermocouple damaged

6.

Replace thermocouple

 

7.

Control valve damaged

7.

Replace control valve

www.desatech.com

Continued

 

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Contents What to do if YOU Smell GAS Infrared VENT-FREE Natural GAS HeaterInfrared Natural GAS Heater Safety InformationUnpacking Product FeaturesProduct Identification Local CodesConfined and Unconfined Space Fresh AIR for Combustion and VentilationProducing Adequate Ventilation Unusually Tight ConstructionFresh AIR for Combustion Ventilation Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space Ventilation AIR Ventilation Air From Inside BuildingVentilation Air From Outdoors Check GAS Type InstallationInstallation Items Installing Thermostat Sensing BulbMethods For Attaching Mounting Bracket To Wall Installing Heater to WallMounting Bracket Removing Front Panel Of Heater Models FA-3B and FA-5BInstalling Bottom Mounting Screws Attaching Mounting Bracket To WallPlacing Heater On Mounting Bracket Typical Inlet Pipe Diameters Connecting to GAS SupplyOperating Heater For Your Safety Read Before LightingPressure Testing Gas Supply Piping System Pressure Testing Heater Gas ConnectionsTo Turn OFF GAS To Appliance Manual Lighting ProcedureLighting Instructions To Select Heating LevelThermostat Models FAS-3C and FAS-5C Inspecting Burner Cleaning and MaintenanceObserved Problem Possible Cause Remedy TroubleshootingInfrared Natural GAS Heater Top Parts Centrals SpecificationsAccessories Replacement PartsService Hints Technical ServiceBurner Assembly ODS/Pilot Assembly Illustrated Parts BreakdownFA-3B KEY FA-3B Description Parts ListFA-5B KEY FA-5B Description FAS-3C ODS/Pilot Assembly Burner AssemblyKEY FAS-3C Description QTY FAS-5C KEY FAS-5C Description QTY International Warranty Information

FAS-5C, FAS-3C, FA-3B, FA-5B specifications

Desa FA-3B, FAS-5C, FA-5B, and FAS-3C represent a significant evolution in the landscape of consumer electronics, particularly in the realm of audio systems and smart home technologies. Each model brings unique features and advancements, catering to varied user needs and preferences.

The Desa FA-3B stands out with its robust sound quality and sleek design. This model incorporates advanced acoustic engineering, ensuring clear highs and deep bass response. It features Bluetooth connectivity, allowing users to seamlessly connect their devices for wireless streaming. The user-friendly interface includes customizable equalizer settings, enabling audiophiles to fine-tune their listening experience. Furthermore, the FA-3B is designed to integrate easily with existing smart home ecosystems, supporting voice commands via popular virtual assistants.

FAS-5C, on the other hand, is geared toward the immersive audio experience. It features surround sound technology, perfect for home theater setups. Users can enjoy a dynamic audio landscape, whether it's for movies, music, or gaming. The FAS-5C is equipped with multiple input options, including HDMI and optical audio, ensuring compatibility with a wide range of devices. Additionally, its aesthetic design blends well with modern interiors, making it a stylish addition to any home.

Moving on to the FA-5B, this model is known for its portability and versatility. The compact design allows for easy transport, making it ideal for outdoor gatherings or travel. The FA-5B does not compromise on sound quality despite its size, featuring a powerful battery that supports hours of playback time. Its rugged exterior provides durability, ensuring it can withstand various environments. The built-in voice assistant compatibility and touch controls enhance the user experience, offering convenience for on-the-go lifestyles.

Lastly, the FAS-3C is designed for those who crave a premium listening experience at home. It features high-definition audio playback, ensuring that even the subtlest nuances in music are captured accurately. The model supports high-resolution audio formats, appealing to audiophiles who demand the best quality. Advanced wireless technologies enable multi-room audio capability, allowing users to synchronize sound throughout their homes. The FAS-3C's elegant design is complemented by customizable lighting features, adding an element of personalization and ambiance.

In summary, Desa FA-3B, FAS-5C, FA-5B, and FAS-3C each bring distinctive features, technologies, and characteristics, catering to diverse audio preferences and lifestyles. Whether for home entertainment or portable listening, these models exemplify modern innovation in audio technology.
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