Avnan Single Motor 7 Amp 240V Circuit Board for MD Central Vacuum – Part# 236S
- Product SKU: 236S
- Category: Central Vacuum Parts & Accessories, MD Central Vacuum Attachment Kit
- Order within
Quick Summary
This replacement control module circuit board is for 240 volt, single motor central vacuums under 8 amps. It includes key control components and is listed for select MD central vacuum models.
Available from Ace Vacuums, with help matching parts to your MD central vacuum system at our Fairfax and Leesburg, VA showrooms.
Quick Highlights
- For 240V single motor units under 8 amps
- Includes relay and transformer
- Includes mini breaker and ground
- Two pairs of low voltage leads included
- External mounting nuts included
- Part number 236S
Product Overview
This control module circuit board is designed for 240 volt, single motor central vacuums rated under 8 amps. It includes the relay, transformer, mini breaker, ground, and two pairs of low voltage leads.
The board measures 2 inches high from the board to the top of the reset button. The reset button and low voltage stems are threaded to attach through openings in the vacuum exterior, and the external mounting nuts are included.
This part is listed for select MD central vacuum models and also includes brand compatibility notes. This board does not work on all vacuums, and quarter inch female spade terminals are not included.
Key Features
- 240 Volt Control Module: Made for 240 volt, single motor central vacuums under 8 amps.
- Complete Main Components: Includes relay, transformer, mini breaker, ground, and two pairs of low voltage leads.
- Threaded Reset Button: The reset button is threaded to mount through the vacuum exterior.
- Threaded Low Voltage Stems: The low voltage stems are threaded and attach through exterior openings on the vacuum.
- Mounting Nuts Included: External mounting nuts for the reset button and low voltage stems are included.
- Photo Reference Available: The product photo can be clicked and printed to use as wire placement instructions.
MD Compatibility
This part is listed as the match for these MD central vacuum power units:
- MD A (240V)
- MD B (240V)
- MD E (240V)
- MD J (240V)
Check the model number on your power unit label before ordering. Our team can confirm the match if you are unsure.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Avnan |
| Part Number | 236S |
| Voltage | 240V |
| Motor Configuration | Single motor |
| Amp Rating | Under 8 amps |
| Board Height | 2 inches from board to top of reset button |
| Listed MD Models | MD A (240V), MD B (240V), MD E (240V), MD J (240V) |
| Compatibility Note | Includes: AirMaster, Modern Day, SilentMaster, Flo-Master and Vacuflo |
| Included Components | Relay, transformer, mini breaker, ground, two pairs of low voltage leads, external mounting nuts |
| Authorized Dealer | Ace Vacuums |
Best For
- Replacing a failed 240V single motor circuit board under 8 amps
- MD central vacuum models MD A (240V), MD B (240V), MD E (240V), and MD J (240V)
- Repairs needing a board with reset button and low voltage lead connections
- Matching systems listed under AirMaster, Modern Day, SilentMaster, Flo-Master, or Vacuflo
Not Ideal For
- Not for all vacuums, so fit must be confirmed before ordering
- Not for systems outside the listed 240V single motor under 8 amp range
- Quarter inch female spade terminals are not included
Why Buy from Ace Vacuums
When you purchase from Ace Vacuums, you receive:
- Central vacuum parts matched to your MD system
- Help choosing the right hose, tools and inlet parts
- Knowledgeable support before and after the sale
- Shipping or pickup at our Fairfax and Leesburg showrooms
Available Online & In-Store
The Avnan Single Motor 7 Amp 240V Circuit Board for MD Central Vacuum is available online and in-store through Ace Vacuums.
Visit Our Showrooms
- Fairfax, VA: 11110 Main St, Fairfax, VA 22030
- Leesburg, VA: 300 Fort Evans Rd NE, Leesburg, VA 20176
Call 703-997-9292 (ext. 1 Fairfax, ext. 2 Leesburg).
Quick Summary
This replacement control module circuit board is for 240 volt, single motor central vacuums under 8 amps. It includes key control components and is listed for select MD central vacuum models.
Available from Ace Vacuums, with help matching parts to your MD central vacuum system at our Fairfax and Leesburg, VA showrooms.
Quick Highlights
- For 240V single motor units under 8 amps
- Includes relay and transformer
- Includes mini breaker and ground
- Two pairs of low voltage leads included
- External mounting nuts included
- Part number 236S
Product Overview
This control module circuit board is designed for 240 volt, single motor central vacuums rated under 8 amps. It includes the relay, transformer, mini breaker, ground, and two pairs of low voltage leads.
The board measures 2 inches high from the board to the top of the reset button. The reset button and low voltage stems are threaded to attach through openings in the vacuum exterior, and the external mounting nuts are included.
This part is listed for select MD central vacuum models and also includes brand compatibility notes. This board does not work on all vacuums, and quarter inch female spade terminals are not included.
Key Features
- 240 Volt Control Module: Made for 240 volt, single motor central vacuums under 8 amps.
- Complete Main Components: Includes relay, transformer, mini breaker, ground, and two pairs of low voltage leads.
- Threaded Reset Button: The reset button is threaded to mount through the vacuum exterior.
- Threaded Low Voltage Stems: The low voltage stems are threaded and attach through exterior openings on the vacuum.
- Mounting Nuts Included: External mounting nuts for the reset button and low voltage stems are included.
- Photo Reference Available: The product photo can be clicked and printed to use as wire placement instructions.
MD Compatibility
This part is listed as the match for these MD central vacuum power units:
- MD A (240V)
- MD B (240V)
- MD E (240V)
- MD J (240V)
Check the model number on your power unit label before ordering. Our team can confirm the match if you are unsure.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Avnan |
| Part Number | 236S |
| Voltage | 240V |
| Motor Configuration | Single motor |
| Amp Rating | Under 8 amps |
| Board Height | 2 inches from board to top of reset button |
| Listed MD Models | MD A (240V), MD B (240V), MD E (240V), MD J (240V) |
| Compatibility Note | Includes: AirMaster, Modern Day, SilentMaster, Flo-Master and Vacuflo |
| Included Components | Relay, transformer, mini breaker, ground, two pairs of low voltage leads, external mounting nuts |
| Authorized Dealer | Ace Vacuums |
Best For
- Replacing a failed 240V single motor circuit board under 8 amps
- MD central vacuum models MD A (240V), MD B (240V), MD E (240V), and MD J (240V)
- Repairs needing a board with reset button and low voltage lead connections
- Matching systems listed under AirMaster, Modern Day, SilentMaster, Flo-Master, or Vacuflo
Not Ideal For
- Not for all vacuums, so fit must be confirmed before ordering
- Not for systems outside the listed 240V single motor under 8 amp range
- Quarter inch female spade terminals are not included
Why Buy from Ace Vacuums
When you purchase from Ace Vacuums, you receive:
- Central vacuum parts matched to your MD system
- Help choosing the right hose, tools and inlet parts
- Knowledgeable support before and after the sale
- Shipping or pickup at our Fairfax and Leesburg showrooms
Available Online & In-Store
The Avnan Single Motor 7 Amp 240V Circuit Board for MD Central Vacuum is available online and in-store through Ace Vacuums.
Visit Our Showrooms
- Fairfax, VA: 11110 Main St, Fairfax, VA 22030
- Leesburg, VA: 300 Fort Evans Rd NE, Leesburg, VA 20176
Call 703-997-9292 (ext. 1 Fairfax, ext. 2 Leesburg).
Frequently Asked Questions
What does this circuit board include?
It includes a relay, transformer, mini breaker, ground, two pairs of low voltage leads, and external mounting nuts.
What type of vacuum is this board for?
It is for 240 volt, single motor central vacuums under 8 amps.
Which MD central vacuum models is this part listed for?
It is listed for MD A (240V), MD B (240V), MD E (240V), and MD J (240V).
Does this board fit all central vacuums?
No. The product notes state that this board does not work on all vacuums.
Are the mounting nuts included?
Yes. External mounting nuts for the reset button and low voltage stems are included.
Are quarter inch female spade terminals included?
No. Quarter inch female spade terminals are not included.
How is the reset button mounted?
The reset button is threaded and attaches through an opening in the vacuum exterior.
How can I confirm compatibility with my MD central vacuum?
Start by checking whether your unit is a 240V single motor model under 8 amps and compare it with the listed MD models. If your model is not listed or you are unsure, confirm your exact model before ordering.
Visit Our Showrooms
Check real-time traffic and travel time from your location in VA, DC, or MD.
📍 AceVacuums Fairfax (DMV Hub)
Address: 11110 Main St, Fairfax, VA 22030
Landmark: Opposite Havertys Furniture Store
Best for: Bethesda, Potomac, Arlington, NW Washington D.C.
📍 AceVacuums Leesburg
Address: 300 Fort Evans Rd NE, Suite 104, Leesburg, VA 20176
Landmark: Next to Home Depot in Leesburg
Best for: Ashburn, Sterling, Frederick MD, Loudoun County
Shipping, Return & Refund Policy
Shipping Policy
In-stock merchandise generally ships from our Leesburg, Virginia location within 3–5 business days. Processing time is separate from carrier transit time and is not a guaranteed delivery date. Weekends and holidays can affect timing. Special-order, backordered or unavailable items may take longer; contact us to confirm timing before purchase when a deadline matters.
Shipping options and charges are shown at checkout. After dispatch, follow the carrier's tracking updates. Weather, carrier delays, order verification and inventory confirmation may affect delivery. Inspect packages promptly and retain packaging if there is damage or an incorrect or missing item.
Returns and refunds
Eligible unused items have a 30-calendar-day return request window for refunds or exchanges, measured from delivery or in-store purchase. Return authorization is required. Final-sale exclusions, the 15% restocking fee for change-of-mind returns and shipping responsibilities are explained in our Return and Refund Policy. That policy is the governing source for return eligibility and fees.
For shipping or return help, email sales@acevacuums.com or call 703-997-9292.
30-Day Returns, Refunds and Exchanges
Updated September 27, 2026. Request a return for an eligible unused item within 30 calendar days of delivery (or purchase for items collected in store). Eligible returns may be refunded to the original payment method or exchanged, subject to availability. The same 30-day request window applies to both refunds and exchanges; there is no separate seven-day or 15-day refund deadline.
Eligibility and authorization
Items must be unused, clean, complete and in their original packaging with all accessories, manuals and proof of purchase. Contact sales@acevacuums.com or 703-997-9292 before sending anything back. Include your order number, item and reason for return. We will confirm eligibility, charges and return instructions. Unapproved or cash-on-delivery returns are not accepted.
Fees and shipping
For an approved change-of-mind return, a 15% restocking fee applies to the returned merchandise price. Original shipping charges are not refundable and the customer pays return shipping. These charges do not apply to an approved return caused by our shipping error or a damaged/defective item claim. Contact us first so we can arrange the appropriate remedy and shipping instructions. Do not assume a prepaid label is included.
Final-sale and excluded items
Air purifiers; discounted, clearance, trade-in, holiday-sale and price-matched purchases; gift cards; custom or special-order products; electrical parts; used or installed items; opened cleaning solutions; and used bags, filters, belts or other consumables are not eligible for change-of-mind returns. Other items clearly marked final sale at purchase are also excluded. An opened box alone does not disqualify an otherwise eligible unused, complete item, but consumables and cleaning solutions must remain unopened.
Damaged, defective, incorrect or missing items; recalls
Inspect your order promptly and contact us as soon as you discover a problem, with your order number and photos where helpful. Keep the packaging. Change-of-mind exclusions and deadlines do not remove applicable defect, warranty, recall or statutory rights. Warranty coverage requires evaluation under the manufacturer's terms; dealer status does not guarantee free repair. Recalled products must follow the manufacturer's recall process.
Refund timing and exchanges
After we receive and inspect the return, we will notify you of approval or the reason it cannot be accepted. Approved refunds are issued to the original payment method within 10 business days of approval; your bank may take additional time to post them. Contact us if more than 15 business days have passed since approval. Exchanges require authorization and replacement availability; any price difference and applicable charges will be explained before processing.
Applicable rights and earlier purchases
This policy applies to online and in-store purchases. We will honor more favorable written return terms provided with an earlier purchase. Applicable consumer rights remain unaffected. Where the European Union 14-day cancellation right applies, customers may cancel or return eligible orders within 14 days of receipt, subject to applicable legal exceptions, without giving a reason.
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