Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 12 - Jun 17
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Description
Nibe MCB Base Card - 818231GRUNDKORT MCB RES. D Part Number 818231 main control board (MCB) used in several NIBE heat pump systems. This is an electronics module, typically installed inside the indoor unit. GRUNDKORT MCB RES. D Type: Main Control Board (MCB) Brand: NIBE Part Number 818231 Controls system logic, sensors, compressor communication, and safety functions Acts as the brain of the heat pump Original control board has failed due to: Power surges Moisture ingress
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- Free Standard Shipping on $100+ Orders to the USA.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.0 ★★★★★
Based on 1074 reviews
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Product Reviews
★★★★★ 5
Perfect fit, durable and affordable
Size: 9.5" x 10.9" x 2.1"
Ordered this for our 2023 Honda civic. Great fit, durable and very affordable. Was so easy to pull old one out and replace new one. Will be ordering again.
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Reviewed in the United States on November 3, 2025
★★★★★ 5
Save money by installing yourself
Size: 9.5" x 10.9" x 2.1"
Good price and easy to install in a 2019 Honda CRV. Instructions can be found on YouTube. Much less expensive than having a service center install them.
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Reviewed in the United States on February 14, 2026
★★★★★ 4
Always fits and is easy to install
Size: 9.5" x 10.9" x 2.1"
We've bought these for years and they always fit and are easy to install. Easy to see when they are dirty and need to throw away. Embarrassed that we let the car dealership do it for so long. We set on six-month subscribe and save so that we know when to replace it - change it whenever it shows up!
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Reviewed in the United States on September 13, 2023
★★★★★ 5
Better than I expected.
Size: 9.5" x 10.9" x 2.1"
Fits perfectly. Easy to install. As good of quality as the original equipment filter.
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Reviewed in the United States on January 9, 2026
★★★★★ 5
Great
Size: 9.5" x 10.9" x 2.1"
Excellent product! My car really needed it. Super fast delivery and the best price. I'm super happy with this product.
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Reviewed in the United States on November 12, 2025
