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SilentMaster Central Vacuum Parts - Filters, Motors & Parts

Filtration for SilentMaster Central Vacuum

Closed Bags

Closed Bags

Some units utilize the single entry closed filtration bags pictured here. Buy closed bags.

Open Top Bags

Open Top Bags

Most units produced prior to the release of Tru-Seal used our genuine Hyperflow bags.

Tru-Seal Bags

Tru-Seal Bags

Convert your dusty, open top filtration to a completely encapsulating, hypoallergenic filtration system. It even connects to the utility port! Buy the Tru-Seal Upgrade Kit now. Also available are the Replacement Tru-Seal Bags.


See bottom of page for maintenance tips, motor diagnostic and replacement information, and help on replacing the relay, transformer, and mini-breaker in older units with a modern circuit board.

Filters, Motors & Parts for SilentMaster Vacuum Power Units

Search Model Number:
[ Reset ]
(Results include all instances, not just model number.)
Model # Motor 1 Motor 2 Filter Circuit Board
SilentMaster S1
110-120 volts
S1
Motor 201S Details & Instructions
(Quantity 1)
201S
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 235S
235S
SilentMaster S1 Foreign
220-240 volts
S1 Foreign
Motor 202A Details & Instructions
(Quantity 1)
202A
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 236S
236S
SilentMaster S2
110-120 volts
S2
Motor 202G Details & Instructions
(Quantity 2)
202G
Motor Alternate: 205 Details & Instructions
Alternate: 205
More power, also a bit louder
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 235M
235M
SilentMaster S2
220-240 volts
S2
Motor 202A Details & Instructions
(Quantity 2)
202A
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 236M
236M
SilentMaster S3
110-120 volts
S3
Motor 201S Details & Instructions
(Quantity 2)
201S
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 235M
235M
SilentMaster S3
220-240 volts
S3
Motor 202B Details & Instructions
(Quantity 2)
202B
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 236M
236M
SilentMaster S4
110-120 volts
S4
Motor 199R Details & Instructions
(Quantity 1)
199R
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 235S
235S
SilentMaster S4
220-240 volts
S4
Motor 199RX Details & Instructions
(Quantity 1)
199RX
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 236M
236M
SilentMaster S44
110-120 volts
S44
Motor 199B2 Details & Instructions
(Quantity 1)
199B2
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 235S18
235S18
SilentMaster S460r
110-120 volts
S460r
Motor 199R Details & Instructions
(Quantity 1)
199R
None
Filter: 720TS-3
720TS-3

Board 235S
235S
SilentMaster S5
110-120 volts
S5
Motor 199R Details & Instructions
(Quantity 2)
199R
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 235L
235L
SilentMaster S5
220-240 volts
S5
Motor 199RX Details & Instructions
(Quantity 2)
199RX
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 236L
236L
SilentMaster S500r
110-120 volts
S500r
Motor 202G Details & Instructions
(Quantity 2)
202G
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Board 235M
235M
SilentMaster S560r
110-120 volts
S560r
Motor 202C2 Details & Instructions
(Quantity 1)
202C2
None
Filter: 720TS-3
720TS-3

Board 235S18
235S18
SilentMaster S560r2
220-240 volts
S560r2
Motor 202CX Details & Instructions
(Quantity 1)
202CX
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Board 236M
236M
SilentMaster S720r2
220-240 volts
S720r2
Motor 202A Details & Instructions
(Quantity 2)
202A
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Board 236M
236M
SilentMaster S900r
110-120 volts
S900r
Motor 199R Details & Instructions
(Quantity 2)
199R
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Board 235L
235L
SilentMaster S900r2
220-240 volts
S900r2
Motor 199RX Details & Instructions
(Quantity 2)
199RX
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Board 236L
236L
SilentMaster SP2
110-120 volts
SP2
Motor 201P Details & Instructions
(Quantity 1)
201P
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 235S
235S
SilentMaster SP2
220-240 volts
SP2
Motor 201PX Details & Instructions
(Quantity 1)
201PX
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 236S
236S
SilentMaster SP22
110-120 volts
SP22
Motor 201P Details & Instructions
(Quantity 2)
201P
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 235M
235M
SilentMaster SP22
220-240 volts
SP22
Motor 201PX Details & Instructions
(Quantity 2)
201PX
Replaces 119389
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 236L
236L
SilentMaster SP3
110-120 volts
SP3
Motor 203P Details & Instructions
(Quantity 1)
203P
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 235S
235S
SilentMaster SP3
220-240 volts
SP3
Motor 203PX Details & Instructions
(Quantity 1)
203PX
None
Filter: HyperFlow 720H-5
HyperFlow 720H-5

Or Closed Bag Option
Board 236S
236S

Maintenance Tips for SilentMaster

Motor Replacement Tips

  • Dying motors just stop, but can randomly work.
  • Motor is usually dead if you only hear a click or smell electrical.
  • Motor replacement instructions here. Skill level medium.
  • Find a replacement motor using the model search below.

Only hear a "click" at the motor when trying to start the SilentMaster system? Or, does it shut off and start back up in a few minutes? These are common signs of a dead motor, which leaves two options: replace the motor or replace the unit. If you liked the amount of suction the SilentMaster model had, then replace the motor using the information above. If you'd like stronger suction, or a cleaner disposal system, then consider a different unit or alternative brand from MD Vacuum. Our units are Assembled in the USA with the finest materials and backed with excellent customer service.


Circuit Board, Relay, Transformer, MiniBreaker

SilentMaster Circuit Board Replacement

In 2004 all SilentMaster Central Vacuums transitioned to an all-in-one control board. If your SilentMaster Central Vacuum needs a new relay, transformer, mini breaker, or even a new control board or circuit board, use one of these powerful, durable, cost-saving central vacuum circuit boards. You save money, time, and headaches. The reality is, a central vacuum really only requires a motor and one circuit board. It is not terribly difficult to retrofit a circuit board. An electrician can do it in under an hour.

To find the circuit board you need, verify the number of motors in your unit and the amperage requirements. The most common board replacement for SilentMaster Vacuums is the Vacuum Motor Circuit Board for Single Motor Units 110 Volt. For other voltages and motor configurations choose one of these Durable Generic Circuit Boards made by the industry leading manufacturer. Or, use your model number and the Motor Replacement Parts Chart for SilentMaster to see our recommended circuit board. There are other Generic Circuit Boards for units with different voltage and multiple motors. Print and use the large photograph of the board as the wiring guide.

Older wiring diagrams for pre-board units: