Desa FAS-30BB, FA-20BB, FGH-30NGB, FAS-20BB 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, 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 14) 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.

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 1/4

 

 

trol valve

 

turn more

 

5.

Pilot flame not touching thermocouple,

5.

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 14) or replace ODS/

 

 

the following:

 

pilot assembly

 

 

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 Blue Flame VENT-FREE Natural GAS HeaterBlue Flame Natural GAS Heater Safety InformationUnpacking Product FeaturesProduct Identification Local CodesConfined and Unconfined Space AIR for Combustion and VentilationProviding Adequate Ventilation Unusually Tight ConstructionAIR 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 Locate heater where moving ve- hicle will not hit itInstalling Thermostat Sensing Bulb Installing Heater to WallInstalling Bottom Mounting Screws Attaching Mounting Bracket To WallPlacing Heater On Mounting Bracket Typical Inlet Pipe Diameters Connecting to GAS SupplyHeater OperatingThermostat Control Operation Manual Lighting ProcedureOperating Heater To Turn OFF GAS To ApplianceWhat to do if YOU Smell GAS Lighting InstructionsInspecting Burner Cleaning and MaintenanceObserved Problem Possible Cause Remedy TroubleshootingMaintenance, Gas leak. See Warning statement at TopParts Centrals SpecificationsAccessories Replacement PartsService Hints Technical ServiceODS/Pilot Assembly Illustrated Parts BreakdownThermostat Models FAS-20BB FAS-30BB KEY Part Number for FAS-20BB FAS-30BB Description Parts ListNON-THERMOSTAT Models FA-20BB, FA-30BB, FGH-30NGB Parts Available not Shown Warranty Information

FA-30BB, FAS-20BB, FGH-30NGB, FA-20BB, FAS-30BB specifications

Desa FGH-30NGB, FA-20BB, FAS-30BB, FAS-20BB, and FA-30BB represent a compelling lineup of advanced heating solutions, engineered to cater to diverse consumer needs for efficient heating and functionality. Each model stands out with unique features and technologies that set them apart in the competitive market.

The FGH-30NGB model is particularly commendable for its innovative design and energy efficiency. It integrates advanced gas burner technology, which ensures optimal heat output while minimizing energy consumption. This model is equipped with an automatic ignition system, adding convenience for users who prioritize ease of use. Additionally, the FGH-30NGB features a robust safety mechanism, including automatic shut-off in case of overheating, which enhances user confidence.

In contrast, the FA-20BB model showcases versatility with its multifaceted heating settings. Ideal for both residential and commercial environments, this model incorporates state-of-the-art electronic controls that allow users to adjust temperatures with precision. The FA-20BB also prioritizes user comfort through its Quiet Mode operation, which significantly reduces noise during heating cycles, making it suitable for quiet settings like bedrooms and libraries.

The FAS-30BB takes technology a step further with its integration of smart features. This model is Wi-Fi enabled, allowing users to control the heater remotely through a mobile app. This capability is particularly advantageous for tech-savvy consumers who wish to manage their heating systems efficiently from anywhere. Moreover, the FAS-30BB boasts a sleek, modern design, making it an aesthetic addition to any space.

Meanwhile, the FAS-20BB offers a compact design without compromising heating power. Ideal for smaller spaces, it combines efficiency with a lightweight build, making it easy to move when needed. Its user-friendly digital interface provides valuable feedback and allows users to easily monitor performance.

Finally, the FA-30BB model caters to those needing a high-performance solution. With dual heating modes, this model stands out in versatility and effectiveness. It utilizes advanced thermal insulation technologies that enhance heat retention, ensuring maximum efficiency.

In conclusion, the Desa FGH-30NGB, FA-20BB, FAS-30BB, FAS-20BB, and FA-30BB models present a broad spectrum of features and technologies that address various heating requirements. From smart technology integration to energy-efficient designs, each model is crafted to offer performance, reliability, and user satisfaction in any setting.
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