Description
What is included:Â Upgraded IQ 2020 Heater Relay Board w/ Jumpers & Shortened Screws for the front cover of the IQ2020
Description:
This IQ 2020 Heater Relay Board (for Hot Spring, Tiger River & Limelight) is the newest revision for the 2001-2009.5 IQ2020 Control Box. It’s upgraded design provides a more efficient method of connecting the heater’s power cord to this board, therefore, reducing fatigue on the two “beefed up” relays. The black wire from the heater’s power cord now connects into the H1 position on the large gray terminal block. The heater’s white wire (neutral) connects onto its own separate gray terminal block labeled H2. This will reduce stress on the relays and increase their lifespan due to better transfer of voltage. The ground wire connection remains the same. The incoming power wires and the black & white wire from the heater are inserted into the gray terminal blocks round holes by prying the gate open using a small screwdriver. This upgraded circuit board replaces the 1st, 2nd & 3rd generation boards in the IQ 2020 Control Box found in all 2001-2009.5 Hot Spring, 2001-2009 Tiger River, and 2008-2009 Limelight spa models.
Symptoms this part has failed:
• No power going to the heater even though the red HTR ON L.E.D. light is lit inside the IQ2020 control box.
• The heater board is charred on the front and/or the backside.
Note: In older control boxes, you may encounter that a chip on this new heater relay board prevents the metal guard from seating properly and it may need to be trimmed. Installation Instructions PDF for more details.
old part number, 74618 (Invensys circuitry)
Reference number(s): 1310801-1
This item replaces: 74618 (Invensys circuitry); 74556
Robin Cooper (verified owner) –
A+++
Benton –
Very good experience product worked great
Paul –
I reported the conditions of my relay board which was still under warranty, and was issued an RMA right away. A very satisfying experience.
Lori –
BEST COMPANY EVER!! Outstanding customer support and defiantly know their products. They were able to walk me through how to install the part with ease. I’m a customer for life!!
Tammy –
You and your technical help is amazing, I struggled with heating issue and boards for almost a year of trial and error until I found you guys. Advised by you that I should replace both boards because new board my not communicate with the old one. BINGO!!!! 100% correct working correctly now. Thanks so much your site is amazing for the do it yourselfer. Love it!
Anonymous –
Regarding this specific part — I had a 2006 model and the board was a different design but 100% fit with no problems — The thing to test is ifs your HTR led is on there should be voltage (128v AC in my case) switched to the heater unit (the cables to the left of the board) — mine registers about 2v AC so I suspected it was this board. I replaced it you could see the charring on the backside and the new board is now happily working great (the front of the board looked fine)
These boards have relays that have a limited life span so it’s not a surprise that after 18 years of more or less continuous use it would fail (possibly also there is a design issue with orders ones — the new design is 100% compatible but different enough to make me think they re-designed it to be more robust)
Anonymous –
Hope it stays good for another 5 years
Amy –
Shipping was very quick! Which was great because it is hard to not have my hot tub working
Anonymous (verified owner) –
Helped me fix my hot tub
Francisco (verified owner) –
Speedy delivery at a great price. This part helped fix my hot tub! The how to videos and articles on this website also helped with the DIY project
Steve (verified owner) –
Steve here in Santa Cruz. Ordered a heater relay board yesterday for my 02 Tiger River Siberian. Delivered by UPS at 3 today. Just installed it. Tub is running and heating! Your support guys are awesome. Thank you.
Anonymous (verified owner) –
It’s a little different than the original (2 relays instead of3 relays) but it does the job. The video makes the replacement easy. Mark the wires or take a photos to keep the wires from getting mixed up.
Anonymous (verified owner) –
I was referred to Backyard Plus by my spa repair guy. While he can get some parts wholesale this one was not one of them. I called and not only got a very fair price for the part it was a great ordering experience. The representative asked for my serial number and he quickly helped with the part needed. He made it very simple for me to order, pay for and even checked to see if it was in time to ship out the same day. It was not but got the part 4 days, not bad especially with the holiday business going on. Thanks, I will check with you guys first before anywhere else in the future for parts as needed.
Demian Garcia (verified owner) –
Updated version of a heater control board replacement. Great video on how to install this. Had the new one in 10mins. And fixed the no heat problem.
aw.1779 (verified owner) –
Shipped fast and working great!
Anonymous (verified owner) –
Received in timely and undamaged condition. Material design satisfactory. No missing parts. Installs easily. Material quality and functionality good.
Robert (verified owner) –
Received in timely and undamaged condition. Material design satisfactory. No missing parts. Installs easily. Material quality and functionality good.
Randy (verified owner) –
I ordered a heater relay board for my Tiger River Spa , they had it in stock and shipped fast It came with good instructions and worked fine. This is the 3rd one in four years so I hope it lasts. Backyards plus is helpful in diagnosing and gets your product fast , I recommend them.
Anonymous (verified owner) –
Great Service !!! Great Part !! Circuit board was easy to install and worked fine my 20 year old spa is still humming along>>
Thanks to Back Yard Plus
Steven (verified owner) –
Ordered new heated circuit board after my relays burned up on my old card. Directions were clear and easy to install. Would recommend highly!
Anonymous –
Thanks a million guys