20-gauge Low Voltage Wire
20-gauge low-voltage control wire. Choose the required length; not mains wiring for a motor or electric powerhead.
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.
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.
This part is listed as the match for these MD central vacuum power units:
Check the model number on your power unit label before ordering. Our team can confirm the match if you are unsure.
| 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 |
When you purchase from Ace Vacuums, you receive:
The Avnan Single Motor 7 Amp 240V Circuit Board for MD Central Vacuum is available online and in-store through Ace Vacuums.
Call 703-997-9292 (ext. 1 Fairfax, ext. 2 Leesburg).
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.
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.
This part is listed as the match for these MD central vacuum power units:
Check the model number on your power unit label before ordering. Our team can confirm the match if you are unsure.
| 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 |
When you purchase from Ace Vacuums, you receive:
The Avnan Single Motor 7 Amp 240V Circuit Board for MD Central Vacuum is available online and in-store through Ace Vacuums.
Call 703-997-9292 (ext. 1 Fairfax, ext. 2 Leesburg).
It includes a relay, transformer, mini breaker, ground, two pairs of low voltage leads, and external mounting nuts.
It is for 240 volt, single motor central vacuums under 8 amps.
It is listed for MD A (240V), MD B (240V), MD E (240V), and MD J (240V).
No. The product notes state that this board does not work on all vacuums.
Yes. External mounting nuts for the reset button and low voltage stems are included.
No. Quarter inch female spade terminals are not included.
The reset button is threaded and attaches through an opening in the vacuum exterior.
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.
Check real-time traffic and travel time from your location in VA, DC, or MD.
Address: 11110 Main St, Fairfax, VA 22030
Landmark: Opposite Havertys Furniture Store
Best for: Bethesda, Potomac, Arlington, NW Washington D.C.
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
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.
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.
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.
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.
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.
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.
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.
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.
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.
Selected maintenance or companion parts for this repair category. Match the original motor, board or component number before ordering.
Match the installed part number and connector. Electrical wands, powerheads and hose handles are not universally interchangeable. Round tools may need an adapter on proprietary handles. Hide-A-Hose valve series and RF generations have separate compatibility requirements. Select the exact variant on the product page.
20-gauge low-voltage control wire. Choose the required length; not mains wiring for a motor or electric powerhead.
Maintenance sheets for routine central vacuum hose and pipe care. Follow the label and system instructions; not a substitute for repair of a blockage or damaged system.
Match the full power-unit model, production version, bag collar and filter dimensions. Cyclonic, disposable-bag and permanent-filter systems use different supplies. A similar size or shared brand name is not enough to confirm fit. If a matching supply is not shown, send us the model label and a photo of the old bag or filter. Shop central vacuum bags & filters
For 25+ years, Ace Vacuums has filled the gap left by big-box retailers. We provide the expert repairs, warranty support, and genuine OEM parts that Amazon and Walmart simply don't offer. From free estimates to same-day service, we are your local alternative for professional home care solutions.
Conveniently serving Washington D.C. and Maryland (Montgomery & Prince George's Counties). Our showrooms are just 20 minutes from DC and 10 minutes from Tysons Corner.
Hablamos Español — Service in English & Spanish.
Serving Zip Codes: 20147, 20176, 22030, 22031, 20151, 20190, 22102, 22314, 20110, 20148 & surrounding areas. All repairs performed by certified technicians using genuine parts.