Desa LDL3930NR, LDL3930PR, LDL3924PR Troubleshooting, Observed Problem Possible Cause Remedy

Page 19

TROUBLESHOOTING

Note: For additional help, visit DESA Heating Products’ 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.

TROUBLESHOOTING

19

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 not connected to igni-

1.

Reconnect ignitor cable

 

spark at ODS/pilot

 

tor 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

6.

Replace pilot assembly

 

 

7.

Ignitor electrode broken

7.

Replace pilot assembly

 

 

 

 

 

 

 

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.

 

 

 

 

 

Repeat igniting operation until air is

 

 

 

 

 

removed

 

 

5.

Depleted gas supply (propane/LP only)

5.

Contact local propane/LP gas company

 

 

6.

ODS/pilot is clogged

6.

Clean ODS/pilot (see Cleaning and

 

 

 

 

 

Maintenance, page 18) 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 30 seconds

 

 

3.

Safety interlock system has been

3.

Wait one minute for safety interlock sys-

 

 

 

triggered

 

tem to reset. Repeat ignition operation

 

 

4.

Equipment shutoff valve not fully open

4.

Fully open equipment shutoff valve

 

 

5.

Pilot flame not touching thermocouple,

5.

A) Contact local natural or propane/LP

 

 

 

which allows thermocouple to cool,

 

gas company

 

 

 

causing pilot flame to go out. This prob-

 

 

 

 

 

lem could be caused by one or both of

 

B) Clean ODS/pilot (see Cleaning and

 

 

 

the following:

 

Maintenance, page 18) or replace ODS/

 

 

 

A) Low gas pressure

 

pilot assembly

 

 

 

B) Dirty or partially clogged ODS/pilot

 

 

 

 

6.

Thermocouple connection loose at con-

6.

Hand tighten until snug, then tighten

 

 

 

trol valve

 

1/4 turn more

 

 

7.

Thermocouple damaged

7.

Replace pilot assembly

 

 

8.

Control valve damaged

8.

Replace control valve

For more

visit www.

.com

111515-01C

Image 19
Contents What to do if YOU Smell GAS OWNER’S Operation Installation ManualSafety Information Table of ContentsUnpacking Local CodesProduct Identification Product FeaturesAIR for Combustion and Ventilation Confined and Unconfined Space Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Check GAS Type InstallationLOG Sizing Requirements Minimum Noncombustible Material Clearances If Not Using MantelDetermining Minimum Mantel Clearance Determining Minimum Mantel Clearance When Using a HoodMantel Clearances Floor ClearancesArea of Various Standard Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Installation Items NeededInstalling Battery into Remote Installing Batteries in ReceiverSure regulator Connecting to GAS SupplyPressure Testing Heater Gas Connections Pressure Testing gas Supply Piping systemChecking GAS Connections Rear Log Log #1 Placement Installing LogsOperating Heater For Your Safety Read Before LightingLighting Instructions Shutting Off Heater Manual Lighting ProcedureHAND-HELD Remote Operation To Turn OFF GAS To ApplianceMain Burner Inspecting BurnersPilot Flame Pattern Burner Primary AIR HolesCleaning Burner Injector Holder and Pilot AIR Inlet Hole Cleaning and MaintenanceLogs Observed Problem Possible Cause Remedy TroubleshootingMaintenance, Gas leak. See Warning statement Models Illustrated Parts BreakdownLDL3930NR and LDL3930PR Parts List Technical Service SpecificationsReplacement Parts Wiring Diagram Service HintsOwners Registration Form Postage Required Accessories Warranty Information

LDL3924PR, LDL3930NR, LDL3930PR specifications

Desa LDL3924PR, LDL3930PR, and LDL3930NR represent a comprehensive range of innovative HVAC solutions. Each model is engineered to provide efficient heating and cooling in residential and commercial applications, ensuring optimal thermal comfort throughout the year.

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