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Harman Red Thermister Exhaust Sensing Probe (ESP): 3-20-00844-AMP

Harman Red Thermister Exhaust Sensing Probe (ESP): 3-20-00844-AMP Harman Red Thermister Exhaust Sensing Probe (ESP): 3-20-00844-AMP Harman Red Thermister Exhaust Sensing Probe (ESP): 3-20-00844-AMP Harman Red Thermister Exhaust Sensing Probe (ESP): 3-20-00844-AMP Harman Red Thermister Exhaust Sensing Probe (ESP): 3-20-00844-AMP
Harman Red Thermister Exhaust Sensing Probe (ESP): 3-20-00844-AMP

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Product rating:
Product price:
$49.99

$80.00 less than the OEM

Product SKU ! 3-20-00844-AMP
Product MPN ! 3-20-00844
Product availability: In Stock
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Harman Red Thermister Exhaust Sensing Probe (ESP): 3-20-00844-AMPRelated Product Title Harman Red Thermister Exhaust Sensing Probe (ESP): 3-20-00844
$49.99In stockRelated Product Price: $129.99 In stock
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Frequently Bought Together

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Total for 2 items $89.98

Description

This version of the ESP is the correct part for any model made after 2008. This updated ESP has red wires, as opposed to the previous probes which could have had black, yellow, or white wires. New Circuit boards are now sensing the condition of the differential pressure switch. (FIG 4) 

Notes for ordering replacement parts:

  • If you need a new probe: Order to match your existing probe. Red= #3-20-00844
  • Black, White, or Yellow Probe: Order the black Probe.
  • If you need a new board: Order using the part numbers included here.
  • If installing on a unit with an old probe = Dipswitch #5 “OFF”.
  • With new probe= Dipswitch #5 “ON”.
  • The DVC500 uses two probes, ESP and TCP (temperature control probe). They must be of the same color


 

This red ESP is used on all models manufactured after 2008 or any model in the list below with an updated controller:


Fitment Note (PB105): These models make use of an extension cable which looks like it is part of the stoves original ESP. You will need to disconnect your existing ESP from the extension cable, and plug the replacement in. This will allow you to extend the cables length to complete the entire run.

UPC: 652174715022

Replacement For Part Number:

  • 3-20-00844

Compatible Models

These are all of the confirmed compatible units for this product. Where To Find Your Make & Model

Harman

Technical Specs

Check these against the part you are replacing before ordering. If a dimension does not match, contact us and we will confirm the fit.

Length (in) 3 ½"
Width (in) ¾"
Height (in) ¼"
Wire Connectors Molex - 2 Pin
High Temp Limit 527°F | 275°C
Weight .5 oz

Wiring and Connectors

Wire, terminals and connectors for the job, in case yours are worn or the ones you have do not reach.

Instructions

Install Instructions For Harman Red Thermister Exhaust Sensing Probe (ESP): 3-20-00844-AMP

Instructional Documents

Instructional Videos

Instructional Notes

You must be careful not to bend an ESP probe if removing it for maintenance purposes. Bending the sheath of the probe will usually ruin the sensor. Likewise, when cleaning your stove, care should be taken to not bend the sensor when cleaning. Do not send brushes or vacuum tools through the stove blindly. Before cleaning your stove for the first time, find the ESP probe and make sure that it is not going to be in the way when cleaning. If it is, remove it from its mount prior to performing work.


Using a 1/4" socket, remove the mounting screw and remove the thermocouple from the stove. Trace the wires back to the control board and unplug the wires.


DIP Setting by Stove Model

Troubleshooting

Troubleshooting Notes

The Control Board/ESP combination is responsible for all high limit safety control. There are 2 high limits, one normal operation high limit and one backup high limit. The control has an automatic diagnostic circuit that continuously monitors the ESP and Room Sensor for faults. If a fault should occur, the control sends a status alert and at the same time the unit goes down to minimum feed/ minimum burn as a safety condition.


In 2008 Harman changed the ESP probe for all units going forward. The change is notable by the color of the ESP wires, Black wires are Pre 2008 and Red Wires are Post 2008. THESE WERE ROLLING CHANGES AS NEW UNITS WERE MADE AND NOT ALL CHANGES HAPPENED JAN 1 2008.


  • For most units, dependent on the controller and/ revision, red thermocouples can be use in place of black thermocouples if the #5 DIP switch settings on the control board are set to 'ON', or 'UP'.


  • Black thermocouples have the #5 DIP switch setting 'OFF', or 'DOWN' however; red thermocouples are slightly larger in diameter than black ones and often will not fit into the mounting holes of black thermocouples on some units.


  • RED ESP wires cannot be cut and spliced.


  • Circuit board revisions ultimately dictate whether a black or red ESP should be used. See the chart below...

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Warranty

Unfortunately, sometimes products do not work like they are supposed to. We offer a 90 day warranty on manufacturer defects. Some manufacturers make this a very simple and easy process unfortunately others do not. Items must be used in accordance with the manufacturers guidelines to qualify for warranty replacement. Please be advised that warranty claims for special parts may take up to 4 weeks for processing, and customers are responsible for return shipping charges.

Shipping Information

This Item Qualifies For Free Shipping With Orders Over $99!

When Will My Order Ship?
All orders are typically processed within 24 hours of receiving payment and are shipped from us same day if placed before our shipping cutoff time (Monday - Friday: 12PM, Saturday: 10AM, Sunday: No Shipping), orders placed after our cutoff time are shipped the next morning.
Do You Offer Express Shipping?
Yes! Please note the shipping times are based on business days, weekends and holidays do not count to the delivery date. Please see our expedited ship time schedules here.
How Does Free Shipping Work?
Most orders over $99 qualify for free shipping! Orders which ship for free are shipped with either USPS or UPS based on our discretion. If you are using a PO box, free shipping orders will always go USPS.
Do You Ship To Canada?
We ship to Canada! We estimate USPS to take 4-10 days once receiving your package. Please note, we are unable to track US Postal packages once they cross the US border and cannot guarantee shipping times. All customs fees incurred are the responsibility of the customer and are not included in the total price. Please allow an extra 2-5 days for all shipments to Canada. Free shipping is not available to Canada.
Do You Ship To Alaska Or Hawaii?
We ship to both Alaska and Hawaii! We do not offer next day or two day shipping to Alaska or Hawaii. Free shipping is not available to Alaska or Hawaii.
Do You Ship Outside The US Or Canada?
Unfortunately, at this time we do not offer international shipping other than to Canada.
Shipping Time Estimations
For information on shipping time estimations, see the Shipping Information & Transit Times on the shipping page.
Learn More About Our Shipping Information

Questions & Answers

If your question does not concern this part, contact us directly or read our FAQs.

No one has asked about this part yet. Ask us anything specific to it - the wattage, which style or model year it suits, what part numbers it replaces - and we will answer it ourselves.

Every question is read by our team before it appears here, so it will not show up right away - we will email you the answer.

Customer Reviews

Based on 26 reviews
100%
(26)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
R
Robert H.
super service

This is one of the best companies I have ever worked with. Excellent response and customer service. Very easy to work with and superior product knowledge.

C
Cory D.

Thank you for your help and having the right part .

W
William T.
Good stuff!

Always great product and service!

M
Matt B.
Parts

Fast shipping. Also these people really do contact you to help you out with troubleshooting. Great company!

J
John M.
Thermistor replacement

Ordered OEM Thermister for my Harman pellet stove. Within an hour or so I received notice it was shipped! I received it safely packaged in less than 3 days. Installed it yesterday. Fits and works perfectly. I’ll be doing business here again. Excellent impressive transaction.

123

Still have a question?

Call or email us and we will help you find the right part.

Contact us 1-508-392-9831
Mon–Sat 9AM–5PM · Sun 10AM–3PM ESTShipping policy · Return policy · FAQs

Customer Reviews

Based on 26 reviews
100%
(26)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
R
Robert H.
super service

This is one of the best companies I have ever worked with. Excellent response and customer service. Very easy to work with and superior product knowledge.

C
Cory D.

Thank you for your help and having the right part .

W
William T.
Good stuff!

Always great product and service!

M
Matt B.
Parts

Fast shipping. Also these people really do contact you to help you out with troubleshooting. Great company!

J
John M.
Thermistor replacement

Ordered OEM Thermister for my Harman pellet stove. Within an hour or so I received notice it was shipped! I received it safely packaged in less than 3 days. Installed it yesterday. Fits and works perfectly. I’ll be doing business here again. Excellent impressive transaction.

123