Specification AgeGenderCategory : Men, Women AgeRangeDescription : Adult Brand : Stove Parts 4 Less BulletPoint1 : Compatible Replacement for Part # 3-20-11744 and 1-00-00744, 3-20-00744 BulletPoint2 : Compatible with the Harman Accentra Cast FS, Harman Accentra Insert, Harman Advance, Harman DVC 500, Harman Invincible Insert, Harman Invincible RS, Harman Magnum (44 Mag), Harman P38, Harman P38+ BulletPoint3 : Compatible with the Harman P61-A, Harman P61A, Harman P68, Harman PB105, Harman PC45, Harman Pellet Pro II, Harman PF100, Harman XXV BulletPoint4 : Extremely Durable BulletPoint5 : USA-Based Seller With 7 Days-a-Week Customer Support Capacity : 17 gallons_per_day Color : BLACK ControlMethod : application ExternallyAssignedProductIdentifier : 7007987683342 ExternallyAssignedProductIdentifier1 : 0373354915154 ExternallyAssignedProductIdentifier2 : 373354915154 ExternallyAssignedProductIdentifier3 : 00686720004001 ExternallyAssignedProductIdentifier4 : 00686720104008 FilterType : Wicking Evaporative FloorArea : 4000 square_feet GpsrSafetyAttestation : 1 HasAutomaticShutoff : 1 Hazmat1 : DANGEROUS GOODS IN APPARATUS Hazmat10 : DE_Unregulated Hazmat11 : EG_Unregulated Hazmat12 : ES_Unregulated Hazmat13 : FR_Unregulated Hazmat14 : GB_Unregulated Hazmat15 : IE_Unregulated Hazmat16 : IN_Unregulated Hazmat17 : IT_Unregulated Hazmat18 : JP_Unregulated Hazmat19 : MX_Unregulated Hazmat2 : UN3363 Hazmat20 : NL_Unregulated Hazmat21 : PL_Unregulated Hazmat22 : SA_Unregulated Hazmat23 : SE_Unregulated Hazmat24 : SG_Unregulated Hazmat25 : TR_Unregulated Hazmat26 : US_Unregulated Hazmat27 : ZA_Unregulated Hazmat3 : 9 Hazmat4 : AE_Unregulated Hazmat5 : AU_Unregulated Hazmat6 : BE_Unregulated Hazmat7 : BR_Unregulated Hazmat8 : CA_Unregulated Hazmat9 : CN_Unregulated IncludedComponents : Fuel Filter kit complete includes filter, housing, and bushing ItemDisplayDimensions_Height : 0.25 inches ItemDisplayDimensions_Length : 1.25 inches ItemDisplayDimensions_Width : 0.25 inches ItemDisplayWeight : 0.13 pounds ItemName : Stove Parts 4 Less Harman Black Thermistor Exhaust Sensing Probe (ESP): 3-20-11744-SPFL ItemPackageDimensions_Height : 0.25 inches ItemPackageDimensions_Length : 1.25 inches ItemPackageDimensions_Width : 0.25 inches ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : space-heater-replacement-parts Manufacturer : Stove Parts 4 Less Material : Plastic MeasuringRange : No Flame - Flame Present ModelName : Harman ModelNumber : 3-20-11744 MountingType : Flange Mount NumberOfBoxes : 1 NumberOfItems : 1 OperationMode : Evaporative OutputType : Push-Pull PackageLevel : unit PartNumber : 3-20-11744 PowerSourceType : ac ProductDescription : Replacement Harman Black Exhaust Sensing Probe (ESP) for select pellet stoves. A 3 blink error code means that the control board has not detected the ESP (Exhaust Sensing Probe) at startup or that it lost communication with it while the unit was running. Verify that the ESP probe is clean by removing it and looking at it, clean if necessary. It should be a silver-colored metal. If you replace it, make sure you replace it with the proper one for your unit. There are two versions; a probe with black wires and a probe with red wires, replace accordingly. If the probe itself looks “bent” it’s probably broken. Before replacing the probe verify that the probe itself is actually plugged into the controller and the contacts on the controller are “clean” On the front side of each controller, there is a red rectangle box with a series of 8 micro-switches called DIP switches. The controller must be removed from the unit to access them. DIP switches allow multiple stoves to use the same controller but run different programs according to the stove’s required functions. The #5 DIP switch must be set to “OFF’ or down for ESP probes with black wires and set to “ON” for DIP switches with red wires. 3 blink error codes can be caused by installing the improper colored wired ESP with the wrong DIP selection. Also compatible With Eco Choice BA100 - Compatible with the Harman Accentra Cast FS, Harman Accentra Insert, Harman Advance, Harman DVC 500, Harman Invincible Insert, Harman Invincible RS, Harman Magnum (44 Mag), Harman P38, Harman P38+, Harman P61-A, Harman P61A, Harman P68, Harman PB105, Harman PC45, Harman Pellet Pro II, Harman PF100, Harman XXV Probe Length:2 1/2",Wire Length:60" ProductGrade : like new ProductSiteLaunchDate : 2019-10-25T12:02:55.064Z RoomType : Whole-House SafetyDataSheetUrl : http://images.salsify.com/image/upload/s--gG7JLqPl--/wiabbnzh3pskvoeljzby.pdf Size : 3 3/8" over all length,1/8" Hose SpecificUsesForProduct : fire detection, industrial safety, combustion equipment monitoring StreetDate : 2017-12-26T00:00:01Z Style : Modern SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 TeamName : Los Angeles Dodgers UnspscCode : 52140000 Voltage : 24 volts_of_alternating_current