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Modine Terminal Board with Time Delay Relay (HD 30 - 75)

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  • Modine Terminal Board with Time Delay Relay (HD 30 - 75)
  • Modine Terminal Board - Under side

Modine® Terminal Board with Time Delay Relay (HD30 - HD75)

, 3H36849-1

QC Supply Part #: 20886

Shipping: Standard

Availability: In stock

Terminal Board with Time Delay Relay for Modine Hot Dawg Heaters (Models HD30 - HD75).
All installation and service of these units should be performed by a qualified installation and service agency including the use of Modine’s installation and service manuals which are specifically intended for use by a qualified installation and service agency.

(3H36849-1) Terminal Board with Time Delay Relay for Modine® Hot Dawg® Hot Surface Ignition Heaters (Models HD30 - HD75).

Works With the Following Models:

  • HD30AH0134
  • HD45AH0134
  • HD60AH0134
  • HD75AH0134
  • HD30AH0174
  • HD45AH0174
  • HD60AH0174
  • HD75AH0174
Brand Modine
Manufacturer Part Number 3H36849-1

Customer Reviews

Highly recommended.
Review by on May 14, 2015

Quick shipment and excellent instructions. This board replaces the existing board and TDR. Easy installation. My heater is back to normal operations. Thanks QC supply.

modine terminal board
Review by on Mar 2, 2015

works great

Prompt shipment
Review by on Feb 6, 2015

The only thiong I can post as a review is the promptness of shipping. The part actually got here a day ahead of promise.

Perfect fit
Review by on Jan 21, 2015

Got it in 2 days and was perfect fit. Thanks!

Modine control board
Review by on Jan 2, 2015

Replacement part came quickly and was very easy to install! Heater is working better than ever, I have had many problems every year with the fan control of this unit, I hope this corrects the problems finally! Sure seems to work great at this time!
Thanks for your quick turn around!

Excellently engineered module
Review by on Dec 15, 2014

This module replaces two components, a very strange fan timer and an interconnect board. The very strange timer is prone to short life and is hard to obtain an exact replacement. QC Supply delivery is fast while keeping me informed of shipment and delivery date. Excellent service, thank you.

Works Intermittant
Review by on Dec 14, 2014

Well, the part worked fine for day one, then sometimes it works and other times it does not. the fan comes on as it should but does not shut off. when i restart the heater the same thing happens. i think the part is defective. It looked old when I received it. I am very dissatisfied. Sorry to say

great dervice
Review by on Dec 13, 2014

got my spare parts now just in case...

100% Satisified
Review by on Dec 13, 2014

Excellent shipping. Part was perfect. Will shop again. :)

Very Happy and Warm again!!
Review by on Dec 11, 2014

Very simple to install, instructions were superb and thank you for the new wiring schematic. Heater now works better than before. Shipping was fast.

product repair my heater
Review by on Dec 4, 2014

shipped quick , fit well and instructions very good

This fixes your fan delay timer relay problem
Review by on Nov 26, 2014

Great price!
Installed as per instructions and my heater works properly now!
Thanks QC Supply

Problem Solver
Review by on Nov 14, 2014

Fan relay crapped out on my heater. After trying to research the problem, I found the QC website. In reading the reviews for this product, I knew this was the part I needed. Part arrived in three sort days...AND...heater is up & running! Thanks QC Supply!!!

Identical replacement part quick fix. Shipped and arrived quickly.
Review by on Apr 6, 2014

Fixed fan not coming on

Hot Dawg Modine Terminal Board with Time Delay Relay (HD30 - HD75)
Review by on Mar 15, 2014

Second time I have ordered from QC Supply. I bought this Modine Terminal Board with Time Delay Relay (HD30 - HD75) to replace the broken part in my Hot Dawg heater. This part arrived as expected and the instructions on how to install are simple. Great part if you have a failure and this fixes it.

Just as I expected!
Review by on Mar 12, 2014

Right part, fair price, same day shipment, packaged well, received in great shape. Would order from QC again!

Review by on Mar 6, 2014

Everything went great, from ordering to receiving the part in 2 days!Install took about 10 minutes.

Great shopping experience.
Review by on Feb 14, 2014

Worked great and price and shipping cost were excellent. Phoned for info on shipping cost and they gladly shipped USPS priority. Most others only ship UPS which is outrageous for Alaska.

Great service
Review by on Feb 12, 2014

After waiting for 2 weeks for this part from a local heating company I went on line and ordered from QC and received it in 4 days at about 1/3 of the cost from the heating company The instructions that came with the unit were printed in 2003 and were for upgrade of an earlier model so that was a little confusing as my unit was a 2004. It talked of removing a purple wire which I did not have on my unit. Once I determined the circuit board was exactly identical to the existing part and the instructions were for upgrading older units than mine; it was all plug and play. I had my heater up and running in about 10 minutes total.

Eliminates fan timer problems
Review by on Feb 6, 2014

This board is a great upgrade from the old thermal timed relay. The instructions supplied are clear and accurate. They also include a new wiring diagram sticker for inside the unit. Total installation time is less than 15 minutes.

Review by on Feb 2, 2014

I utilized this product to replace the circuit board and fan delay relay on an 17 year old Hot Dawg heater mounted in my garage. Part shipped quickly, came with easy to follow instructions, and fixed the problem of an intermittent circulation fan. Replacement took less than 30 minutes. QC's price was the cheapest! Great experience.

the exact part I need
Review by on Jan 21, 2014

the exact part I need

Review by on Jan 21, 2014

Great price , quick shipping, fantastic instructions, installed it myself in about 15 minutes, furnace works like new again.

Review by on Jan 16, 2014

fit and worked great

Great Replacement
Review by on Dec 12, 2013

Great Replacement for the old control board and relay on the Modine heaters.

Great technical help from QC tech's
Review by on Nov 28, 2013

Received in a timely fashion part fit and functions p[perfectly, good price best of all was the one on one from QC technicians prior to ordering.
Overall great experience.

Good Product
Review by on Nov 14, 2013

The product fit as per the instructions and worked the first time. It arrived as expected.

Finally Fixed!!
Review by on Oct 31, 2013

I have a Hamilton heater too and had the same problem with the fan not turning on all the time. Found out it's the same as a Modine heater and ordered the board. QC Supply has great prices, fast shipping. The instructions were clear and the part was easy to install. My heater now works like new again.

Heated Garage Again
Review by on Mar 15, 2013

I have a Hamilton WGH garage heater and from searching the web, this Modine part is the same as the ones being offered for the Hamilton, but at a better price. My Hamilton was facing the same problem, fan was not coming on, heat exchanger glowing red and then tripping out. This part was the cure. Awesome service and delivery.

Very happy
Review by on Feb 17, 2013

Mechanically, the board went in easy, would have been easier if I had read the instructions. Doing the electrical connection was very simple. Glad I made the installation. The time from order to receiving was delightfully short! Thanks.

Good so far
Review by on Jan 12, 2013

Installed in my Hot Dawg and so far so good. Have not used it a lot yet.

Glad we could get the part!
Review by on Jan 12, 2013

Our Hot Dawg heater wasn't working and my husband found the diagram inside of all the parts and numbers, he went on the internet and the number & part had changed, so it showed the updated part and number to order. It was that easy. We had heat back in less that a week!

great service
Review by on Dec 27, 2012

This part must be an updated version and will require some rewiring but the board was not required at this time. The part arrived right on time. Thank you.

Excellent shopping experience
Review by on Aug 23, 2012

Fast delivery, correct part, easy to self install. Very satisfied.

Review by on Jun 25, 2012

Very fast shipping. Great price.

Go Big Red!
Review by on Mar 19, 2012

Great price, fast delivery, easy install, wonderful people to deal with! Thanks, Elaine!

Great deal
Review by on Mar 12, 2012

Much better product than the original. Easy to install with great instructions, schematic and wiring diagrams. Have not used it very much for reliability, but it should be better than the original design.

All done
Review by on Mar 3, 2012

Works great, makes me wonder if this if a common failure with these heaters. Ordered it on the website and got it pretty fast. A better price than other places I checked and free gloves, gotta like that. The only problem is... I didn't understand the tax charged on an item sent out of state?

***QC Supply Response***
I do not have your order details so I can not determine what state we shipped to but we must charge tax when shipping to any state where we have a business presence, which is Nebraska, Missouri, Oklahoma, Iowa, North Dakota, South Dakota, Minnesota and Wisconsin.

fixes fan delay problems
Review by on Feb 27, 2012

15 minutes to install and fixed problem I had with the fan not coming on in time to prevent the high limit switch from tripping. recommended if you are having trouble like I did on my 2001 HD75 unit. Fan goes on now within 10 to 15 seconds after flame up. No more glowing hot heat exchanger tubes. QC sent product quickly and the best price on the internet.

Excellent Product and Great Service
Review by on Feb 23, 2012

Arrived within 2 Days Excellent easy to follow instructions Great Company All Businesses should operate like this

Great Service
Review by on Jan 22, 2012

Old time feel with old fashion values. Quick delivery and a special thanks to Jerry for his friendly conversation.

fixed the fan not working
Review by on Jan 12, 2012

QC had the best price on this part...when the stops working due to a bad time relay.this updated part will fix your problems....it took about 10 min to install.the relays all went bad on these units..once you install the updated board then it will last...i will use qc again...they are very nice people to talk to and do bussiness with...eddie. toms river. nj.

Great repair!!!
Review by on Dec 23, 2011

I did a bench test of my Fan Motor and it worked great. Isolated the problem to the Fan Delay Relay with a jump through it. QC had the part as an updated circuit board with Delay Relay included. Simple install with great Hot Dawg supplied instructions for the upgrade. I'm back in the heat!! A great pair of gloves to boot!!!! Thank you QC.

Works well
Review by on Dec 14, 2011

Product shipped on time, was easy to install and works well.

Review by on Nov 26, 2011

shipped quick, works great, and a free pair of my favorite gloves who could ask for more. will look here first for other parts, as needed.

Just what I needed
Review by on Nov 4, 2011

I had a heater company check to see what was wrong with my heater. Turned out to be the circuit board. They quoted me $437 and a week to fix the heater. I got the part for $82 including shipping from QC in 3 days. I installed it myself and saved $350.

Review by on Jun 11, 2010


Works Great
Review by on Jan 14, 2010

I bought this to replace a broken part in my Hot Dawg heater. Konnie got it sent out to me super fast and the instructions on how to install are simple. Great part if you have a failure and this fixes it.

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