Desa FB-2B installation manual Troubleshooting, Observed Problem Possible Cause Remedy

Page 13

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 heater and let cool before servicing. Only a qualified service 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 and control

1.

Ignitor electrode positioned wrong

1.

Replace ignitor

knob is pressed in and turned to the PILOT

2.

Ignitor electrode broken

2.

Replace ignitor

position, there is no spark at ODS/pilot

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)

 

 

 

 

 

When ignitor button is pressed and control

1.

Gas supply turned off or equipment

1.

Turn on gas supply or open equipment

knob is pressed in and turned to the PILOT

 

shutoff valve closed

 

shutoff valve

position, there is spark at ODS/pilot but no

2.

Control knob not in PILOT position

2.

Turn control knob to PILOT position

ignition

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

5.

Contact local propane/LP gas company

 

6.

ODS/pilot is clogged

6.

Clean ODS/pilot (see Cleaning and

 

 

 

 

Maintenance, page 12) or replace ODS/

 

 

 

 

pilot assembly

 

7.

Gas regulator setting is not correct

7.

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 10 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 propane/LP gas company

 

 

which allows thermocouple to cool,

 

B) Clean ODS/pilot (see Cleaning and

 

 

causing pilot flame to go out. This prob-

 

Maintenance, page 12) 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 PROPANE/LP GAS HeaterPROPANE/LP GAS Heater Safety InformationSafety Pilot Product Identification FeaturesLocal Codes UnpackingProviding Adequate Ventilation AIR for Combustion and VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Ventilation AIR Fresh AIR for Combustion and VentilationVentilation Air From Inside Building Ventilation Air From OutdoorsInstallation Items InstallationInstalling Heater to Wall Check GAS TypeMethods For Attaching Mounting Bracket To Wall Installing Bottom Mounting ScrewsMarking Screw Locations Attaching Mounting Bracket To WallGas Connection Connecting to GAS SupplyOperating For Your SafetyHeater Checking GAS ConnectionsOperating Heater Manual Lighting ProcedureLighting Instructions To Select Heating LevelInspecting Burner Cleaning and MaintenanceObserved Problem Possible Cause Remedy TroubleshootingTurn control knob until it locks at desired Remedy Observed Problem Possible CauseReplacement Parts SpecificationsTechnical Service AccessoryFBD Parts CentralsFB-2B Illustrated Parts BreakdownODS/PILOT KEY Part Number Description QTY Parts ListLimited Warranty GLO-WARM VENT-FREE Residential GAS Heaters Warranty Information

FB-2B specifications

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In summary, the Desa FB-2B is a remarkable piece of equipment that combines durability, advanced technology, energy efficiency, and user-friendly design. Its features make it an exceptional choice for industries that demand high-performance solutions, ensuring that users can rely on it for their operational needs. With its focus on safety and automation, the Desa FB-2B is truly a leader in its field.
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