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Vacuum Motor Circuit Board Single Motor 15amp 120v Part#235S
Circuit board is 2" high from board to top of reset button. The reset button and low voltage stem are threaded and attach through the vacuum unit's corresponding holes that are made for this circuit board. Click on photo and print it to use as installation instructions. NOTE: This board does not work on all vacuums.
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Vacuum Motor Circuit Board Dual Motor 15 amp 120v Part#235M
 1 Review - 0 Comments Circuit board is 2" high from board to top of reset button. The reset buttons and low voltage stem are threaded and attach through the vacuum unit's corresponding holes that are made for this circuit board.Click on photo and print it to use as installation instructions.
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Vacuum Motor Circuit Board Dual Motor 28 amp 120v Part#235L
Circuit board is 2" high from board to top of reset button. The reset buttons and low voltage stem are threaded and attach through the vacuum unit's corresponding holes that are made for this circuit board.Click on photo and print it to use as installation instructions.
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Vacuum Motor Circuit Board Single Motor 8 amp 240v Part#236S
Circuit board is 2" high from board to top of reset button. The reset button and low voltage stem are threaded and attach through the vacuum unit's corresponding holes that are made for this circuit board.Click on photo and print it to use as installation instructions.
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Vacuum Motor Circuit Board Dual Motor 12 amp 240v Part#236MX
Circuit board is 2" high from board to top of reset button. The reset buttons and low voltage stem are threaded and attach through the vacuum unit's corresponding holes that are made for this circuit board. (Back of board says 120 volt but it is not.)Click on photo and print it to use as installation instructions. NOTE: the two lines from the power cord can go on either input terminal, there is not a neutral as written on the photo.
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Vacuum Motor Circuit Board Dual Motor 18 amp 240v Part#236LX
Circuit board is 2" high from board to top of reset button. The reset buttons and low voltage stem are threaded and attach through the vacuum unit's corresponding holes that are made for this circuit board. (Back of board says 120 volt but it is not.)Click on photo and print it to use as installation instructions.
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Wire Set Part#256G
The wire set may be helpful when installing a new motor or circuit board.
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110 volt Transformer Part#230
Transformer used in some brands and models, such as: S2, B, B2, E2, QE2, S1, S4, C110, C95, M19, M32, M34, M72, M45. Click here to print a Wiring Diagram to use while installing.
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240 volt Transformer Part#231
Transformer used in some brands and models, such as: S2, B, B2, E2, QE2, S1, S4, C110, C95, M19, M32, M34, M72, M45. Click here to print a Wiring Diagram to use while installing.
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240 volt Transformer Part#231L
Transformer used in some brands and models, such as: SV, SVT, S3, S5, C210, G23. Click here to print a Wiring Diagram to use while installing. Depending on our stock, you may receive either one of the transformers shown. Both transformers are used for the same purpose.
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110 volt Transformer Part#232
Transformer used in some brands and models, such as: SV, SVT, S3, S5, C210, G23. Click here to print a Wiring Diagram to use while installing.
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NOT FOR SALE - USE PART 242 BELOW. Part#240
This 13 amp relay is NO LONGER SOLD - THE 241 REPLACES ALL 240 RELAYS - the difference is there are 2 posts in each corner instead of one - ignore one or use both. The change in amps will not matter.The 13 amp was originally MD's 110 and 240 volt models A, B, E, J, S1, S4, M19, M72, C110, C95 (as well as others).
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NOT FOR SALE - USE PART 242 BELOW. Part#241
16 amp Relay used in some 110 and 240 volt central vacuums. Used in MD MFG models including S2, B2, E2, QE2, M32. Click here and print a Wiring Diagram to use while installing.
Relay is 24 volt and also replaced 16 volt relays.
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28 amp Relay Part#242
Relay also used in some 110 and 240 volt models: S2, S3, S5, SV, SVT, B2, E2, QE2, G23, C210, M32. Replaces Omron Relay used in machines over 20 amps. If replacing an Omron Relay see the wiring diagram for an MD E3 under Support/Manuals and Diagrams/Wiring Diagrams.
(This relay was temporarily used with smaller machines under 20 amps and only used with the 232 transformer. Models under 20 amps or an voltage amount can use this relay. Click here to print a Wiring Diagram to use while installing.
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28 amp Relay with Bracket Part#242B
Used in only several MD MFG models.
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7 amp Mini Breaker Part#252
7 amp minibreaker for 110 volt and 240 volt vacuum units replaces most all types of 7 amp minibreakers such as snap-ins and square buttons. If the minibreaker is attached to a circuit board the entire board will need to be replaced. (250V -not volts- "VAC" by MPI) (This mini breaker replaces all other mini breakers, including the snap-in type pictured)
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10 amp Mini Breaker Part#250
10 amp minibreaker for 110 volt and 240 volt vacuum units. The one the left (may have not come with imprinted ring originally) replaces most all types of 10 amp minibreakers such as snap-ins and square buttons. If the minibreaker is attached to a circuit board the entire board will need to be replaced. (250V - not volts - "VAC" by MPI) (This mini breaker replaces all other mini breakers, including the snap-in type pictured)
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15 amp Mini Breaker Part#251
15 amp minibreaker for 110 volt and 240 volt vacuum units replaces most all types of 15 amp minibreakers such as snap-ins and square buttons. If the minibreaker is attached to a circuit board the entire board will need to be replaced. (250V -not volts- "VAC" by MPI) (This mini breaker replaces all other mini breakers, including the snap-in type pictured)
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20 Amp Mini Breaker Part#253
20 amp minibreaker for 110 volt and 240 volt vacuum units replaces most all types of 20 amp minibreakers such as snap-ins and square buttons. If the minibreaker is attached to a circuit board the entire board will need to be replaced. (250V -not volts- "VAC" by MPI) (This mini breaker replaces all other mini breakers, including the snap-in type pictured)
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Low Voltage Booster Box Part#140LV
Splice this booster into a vacuum's low voltage wiring system, plug it into 110 volts, and your 24 volt line will be boosted with plenty of juice! The two blue wires connect to your power unit low voltage (you can use speaker wire to extent any of the wire here) and the red and yellow (or two red) wires connect to the low voltage leads coming from the home. You can hang the box on your wall with a nail into a stud. Be sure to use wire nuts to get good connections as you join the wires together.
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Low Voltage Toggle Switch Part#244
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Low Voltage Rocker Switch Part#244R
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30 amp plug with cover for 110 volt over 20 amps Part#267
The plug is called a Nema 5-30 Socket or Plug. The large 110 volt plug goes into it. The plug is larger than 240 volt plugs and one prong looks like an "L". This socket fits into and can be used with a single gang box. Detailed information and line drawing.
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Central Vacuum Wireless Remote Control (RF) Part#145
This is the easiest way to bypass damaged low voltage wiring and remotely start the vacuum unit from within the home. Simply attach remote on the vacuum hose handle and other components near the vacuum power unit. And surprise - your low voltage troubles are over.
Range is similar to a car's remote lock/unlock device used with most cars today - about 150 feet depending on how many walls and the type of walls it needs to pass through. A small device plugs into electricity and hangs near the vacuum unit and wire attaches to the vacuum from it. Use the remote clicker to activate the vacuum on and off - it couldn't be more simple. PDF of Instructions
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Remote Clicker Alone Part#145KT
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