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$147.71 each
In Stock
Get 9 Tue, Jul 7
Order by today, receive Tuesday
This item replaces: HH84AA011
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days
Description
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Carrier HH84AA020 Control Board (HH84AA020)
An OEM replacement furnace control board used in Carrier HVAC equipment to restore normal system control functions where the HH84AA020 part number is specified.
Key Features:
Compatibility & Applications:
Installation & Operation Notes:
Maintenance & Troubleshooting:
User Reviews & Q&A Summary:
An OEM replacement furnace control board used in Carrier HVAC equipment to restore normal system control functions where the HH84AA020 part number is specified.
Key Features:
- Official OEM control board for Carrier HVAC equipment (listed as "Control Board HH84AA020").
- Listed in Carrier distribution parts literature as a furnace circuit board.
- Listed as replacing HH84AA011.
Compatibility & Applications:
- Used in Carrier HVAC equipment (model-specific; the sources do not provide a complete model list).
- Customer reviews mention successful use in older Carrier systems, including older furnaces and residential Carrier HVAC units (user-reported examples only).
- Must only be used where the manufacturer specifies this exact part number: HH84AA020.
Installation & Operation Notes:
- Installation should be performed by a qualified HVAC service technician.
- Refer to the unit's service/installation manual and wiring diagram to confirm correct connections and configuration.
- Review-based install notes:
- One installer notes to pay close attention to fan-speed wiring, stating terminal positions may differ from the original board.
- One installer reports a control box cover clearance issue due to the low-voltage terminal block location on a specific older furnace, requiring a cover modification in that case.
Maintenance & Troubleshooting:
- This control board is typically replaced when a furnace/HVAC unit will not operate correctly due to a suspected failed control board (for example, no heat during a breakdown, or loss of circulating fan control - review-reported outcomes).
- Reviews also mention resolving an operational issue described as an "additional cool down start at end of the heat cycle" after replacing the board.
- If problems persist after replacement, follow the unit's diagnostic procedures in the service documentation to confirm inputs, safeties, and wiring.
User Reviews & Q&A Summary:
- Reviews commonly describe it as the exact/correct replacement that restored heat or proper fan control on older Carrier systems.
- Frequent themes include quick repair turnaround, "worked perfectly," and straightforward installation for experienced installers.
- Repeated practical advice includes verifying wiring carefully (especially fan-speed terminals) and expecting minor physical/layout differences compared with the original board on some older units.
Contact
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Product Reviews
4.9 out of 21 reviews
100% would recommend this product
5 star
90%
4 star
10%
3 star
0%
2 star
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1 star
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Showing 1-10 of 21 reviews
perfect
The item we got was great for our heater. The board was installed and worked perfectly.
LNNurse
Albuquerque
8 months ago
Verified Buyer
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Parts for old furnace
The updated control board for my 1979 Carrier furnace works great.
Kasmir
Madison WI
2 years ago
Verified Buyer
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Never Thought I Would Find This Control Board
I didn't think I was going to find this part because my furnace is 30 years old. I'm so glad my furnace guy sent me to this company! They had the part and it was delivered in two days! Now my furnace is working beautifully! Thank you Supply House!
siciliangal
Chicago Heights, IL
2 years ago
Verified Buyer
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Right part, right price, right now
Finding older furnace parts can be daunting and time consuming but this was quick and easy first time
Bodey20
Lima, Ohio
3 years ago
Verified Buyer
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Great 👍 Product
It works very well
K33
Clinton Township
3 years ago
Verified Buyer
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I would buy from SupplyHouse again!
Great customer service and perfect part. Shipped quickly 👍🏼
Sparkle Pony
San Luis Obispo CA
3 years ago
Verified Buyer
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Great product.
The product worked as expected without any issues. Thank you!
end user
VA, USA
3 years ago
Verified Buyer
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Updated Furnace Board From Original
A perfect fit and upgrade from the original board. You must watch that you wire the fan speed correctly. The terminals have swapped positions.
Hvacrperez
Bergen County,NJ
3 years ago
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The product is good 👍👍
The product is doing its job.
Jim
Bellevue, Wa
4 years ago
Verified Buyer
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Works Great. Easy to Install
Easily installed in 30 minutes and worked perfect.
Richard
Temecula
4 years ago
Verified Buyer
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