Rittenhouse Service & Repair Forum

I am looking for a wiring diagram for a Rittenhouse, Spartan Electric, Fayettevile NC C8845 unit which is 30 to 35 years old. It seems to be either able to use two D cells or 16V transformer but I am got sure how to wire it up. Any ideas? Thanks.

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— Posted by Larry Graham on 2011-01-02

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Recent 315 Comments

#Rittenhouse by Dorothy \"Ann\" Imhoff on 2014-10-23 22:17
A Rittenhouse model 312 came with my home. It works but the chimes are not loud enough to heard unless you are in the room where the doorbell is mounted.I would hate to replace it because other than this it is very workable.

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#Rittenhouse by craig cipriani on 2011-11-03 15:22
I hav a door chime and clock rittenhouse model 631 and 632 i need a wiring diagram for. any help i can get is appriciated thank you

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#Rittenhouse by Corinne Censulla on 2012-02-29 17:56
I have a very old doorbell/ clock combination. The Model # is 450. The chimes work but not the clock. Since it is installed into the wall is there one the will replace using the same insert?

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#Rittenhouse by william junker on 2010-03-20 16:08
I need a replacement part for this devise.

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#Rittenhouse by lausanne walter on 2008-08-03 14:55
I have about a 1984 model, 16.5 inches by 9 inch am/fm intercom unit........unit does not work anymore. Cannot pick up radio stations by dialing the knob......do you have a replacement unit that would fit this spot? Or is it repairable?Lausanne

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#Rittenhouse by Jim Fields on 2012-11-19 16:03
I have a schematic for Models M7010, M7011, M7012, M7020. The document also has AM Alignment, FM Alignment, Troubleshooting chart, and list of replacement parts for printed circuit board.

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#Rittenhouse by Bob on 2007-04-07 23:14
We have the same system in our home. Did you find any compatible system? Did you replace your system? If so, what system did you use? Thank you. We need to replace everything except the wiring.

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#Rittenhouse by Gord on 2011-11-24 21:00
Jessica:I have the same model door chime, with the same problem. How did u make out with yours? Do you know any of the history of this chime. From what I can surmise, it was produced after WW2 and that would fit as it was in my parents house when i was born in 1954. I have a friend that is an electr…Purchase or Repair: Ticket Image...
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#Rittenhouse by Andrew Lazazzera on 2018-02-05 18:04
Have Model DS-2 Door Sentry w/ 16v. chime transformer -Rittenhouse #30 or = need local chicagoland technician to trouble-shoot the control box w/ its transformer.-believe transformer is problem.

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#Rittenhouse by Anthony Butts on 2011-10-02 19:14
The unit works, but possibly in need of some service. The AM radio works , but no FM. There is a bit of background noise in the system.

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#Rittenhouse by Charles Cheshire on 2018-07-13 22:04
Cannot reset time seems stripped.Only two of the chimes work.Where are you physically located.ROUGH repair cost.

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#Rittenhouse by Tony Falco on 2012-04-17 19:38
Do you have available a manuel for the emerson ritterhouse RCM-4 intercom. I have to re- install mine

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#Rittenhouse by STEVE on 2013-10-30 16:58
where can i find a schematic for a rittenhouse rm-20/22 intercom am fm radio

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#Rittenhouse by Maria on 2017-06-19 14:33
I need wiring schematic for Emerson door chime model C8578-1

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#Rittenhouse by Bradley Lowe on 2015-12-05 21:41
HelloIt came with the house had a ele.and he had no luck with repair

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#Rittenhouse by miriam spear on 2011-05-16 14:13
Only one of four chimes works, although we detect a faint electronic buzzing, in sequence, of the other three. For example, we hear Chime A, buzz, buzz, pause, buzz, buzz, Chime A. As cover has been lost, we suspect dust and grime is keeping the other hammers from working.Can the unit be cleaned and…Purchase or Repair: Ticket Image...
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#Rittenhouse by DAVE ROSS on 2007-05-18 16:21
EVERYTHING WORKS FIND..JUST WANT TO UPDATE OLD UNIT

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#Rittenhouse by Eric Schneider on 2012-02-04 21:58
Do you know where I can find the outdoor part you push to ring for this Emerson Model C8203? Thanks for your time.Eric Schneider

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#Rittenhouse by joe matthews on 2015-05-13 16:20
Unit was installed late 1960\'s. Need speakers, knobs and covers to upgrade system.

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#Rittenhouse by Cathy Kirkwood on 2014-08-21 21:30
I purchased a home in Honeoye Falls, NY. It has an RCM 3 intercom that works and I would like to get a manual for it. Is it possible to get instructions for it?

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#Rittenhouse by Ken Bentham on 2017-04-25 21:05
Bell is connected to two doors. The front door works fine. The rear door won't ring at all. Can't tell what might be disconnected. Any ideas would be a big help. Thanks.Ken Bentham

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#Rittenhouse by Earl Miller on 2012-10-11 01:03
Can I use the existing wiring and recessed wall areas of the old system listed above with a new replacement system. If so, what new updated system will work? Thanks

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#Rittenhouse by Robin Campbell on 2017-09-10 05:21
I have a Rittenhouse master model 550 and 551 doorbell to be tested and repair if needed.

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#Rittenhouse by william j paveletz on 2018-03-09 19:10
i need a part model c8633 volts 16 need the main eletric gear

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#Rittenhouse by Bill Corbett on 2022-02-07 13:47
Emerson c8203 replacement transformer?Any help would be appreciated.Thanks, Bill

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#Rittenhouse by Pamela Brawdy on 2008-08-19 20:43
My sister inlaw gave me this doorbell clock, I do not have the chimes the model number is RC6333. Can you help.

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#Rittenhouse by elena fernandez on 2015-02-27 06:07
Hi there, I'm interested in purchasing the Rittenhouse C8578-1 135-7351-01 door chime. Could you please provide me with information on pricing and availability? I'm looking to source one quickly. Thank you!

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#Rittenhouse by Richard Greene on 2009-11-07 15:09
I have a clock and doorchimes door bell model RC-633.I would like to get relacement part for the door bell part, the clock is still working.Can you help me

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#Rittenhouse by Don Meierhoff on 2013-01-01 10:50
Need a schematic for the Emerson-Rittenhouse Model rm20/rm22. Need to know transistor replacement numbers for the front end tuner.Thanks,Don

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#Rittenhouse by Mike on 2025-06-05 15:12
Trying to hook up ring with the rittenhouse 531 model. Not sure how the wiring should be set up? 4 white and red wires with 0-4 posts?

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#Rittenhouse by Colleen Wilkowski on 2011-04-28 15:24
I am searching for a User Manual for the Rittenhouse M9041 AM/FM Radio-Intercom system. The unit is original to the house built in 1982. I have found a tech manual with schematics but now need to locate a User Manual. Any suggestions would be appreciated. Thanks.

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#Rittenhouse by john rohter on 2011-03-03 21:43
Looking for instruction for the door chime opporation.

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#Rittenhouse by jimmy jamison on 2008-04-08 19:34
we have modle m7035 the door bell and gate buzzer in still workes but the talk butten and volumne dose not. would like to fix or replace unitplease help thank you

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#Rittenhouse by Don Pieschel on 2011-06-25 22:05
I have a RM-2 or a M9401 rittnhouse intercom I need a manual or schematic.any ideas where to locate.Don

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#Rittenhouse by paul caley on 2010-10-09 16:33
plungers have stopped (tried lube) is model w clock can they be replaced by myself or must this be done by a pro or can the entire panel be more easily replaced thank you

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#Rittenhouse by Bob Hilsher on 2010-03-27 16:29
Unit stopped working. Have 16+ volts coming to it but no sound. Assume the syncronous motor is out... Telechron model M3151, Type H18, 3.6 rpm, 60 cy, 16 v. Is the replacement motor available? Price?Could it be anything else? All wiring is in tact on board.Thanks, Bob

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#Rittenhouse by J. G. Colbert on 2010-09-28 22:30
The rheostat is broken on this unit otherwise the unit is as melodious as it was 40 years ago.The numbers on the rheostat are 1406417 and 135-51 The motor is a Telechron synchronous motor. 118V--16 Model 3151 RPM 3. W. 4.CantI purchase the replacement rheostat and have it shipped to PMB 399 at the a…Purchase or Repair: Ticket Image...
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#Rittenhouse by Eric Hoffman on 2007-12-23 04:40
I have just recently purchased a house that has a Rittenhouse Model 7300 Intercom system that does not work. I am trying to find a schematic for it. I know that it is an old system, but would like to use it to monitor my young children. Any help would be appreciated.Thank you.Eric Hoffman—> …Purchase or Repair: Ticket Image...
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#Rittenhouse by mccammond99@att.net on 2016-03-19 17:03
is there anyway i could get another one of these door bells?

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#Rittenhouse by Larry M Biviano on 2008-11-21 02:47
have hooked up several ways appear to only chime once as if wired for back door.clock woriks fine, does ot chime on all tones

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#Rittenhouse by Adrian Younger on 2008-07-08 00:43
Hello. I have an Emerson-Rittenhouse Door Chime Model RC577 and it has quit working. I was wondering if there is a replacement transmitter available for this chime. It has the motor attached to the transmitter so I don\'t htink I can get a replacement at a store. Any information you could give me wo…Purchase or Repair: Ticket Image...
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#Rittenhouse by Diane McCracken on 2010-10-26 15:22
Do you sell parts? I am looking for a replacement potentiometer for an Emerson-Rittenhouse RC 633. It is labeled Clarostat 140-6747/ 135-51.

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#Rittenhouse by Terri McDougall on 2012-04-06 14:55
Our house was built in 1978 and we purchased it in 1997. It had the Rittenhouse monitor system in place with the main unit in the kitchen and smaller units scattered thought the house and in an attached apartment. The unit has never worked since we have been here and I was wondering if it is repaira…Purchase or Repair: Ticket Image...
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#Rittenhouse by Brandon on 2010-01-02 05:17
Please contact me about the cover of the door chime Model c8204.We lost it during repainting the wall when we moved in 2 years ago.ThanksBrandon

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#Rittenhouse by Jamie Wingler on 2009-08-30 05:41
I have an inoperative Rittenhouse Model 7021 intercom system as well. Can I fix it or do I have to buy new?

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#Rittenhouse by Debbie Solovey on 2014-10-25 01:56
Hello, I am living in the house I grew up in and all of a sudden I noticed thatthe front doorbell was not working. The side doorbell hasn\'t worked for a long time. I have done some research so I will give you the information I have.Nutone Chime Signal, made in USA 1952, Model K 26 902 or 002It is a…Purchase or Repair: Ticket Image...
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#Rittenhouse by Marlene Ilijanich on 2024-06-26 02:50
Hello, I purchased my 4 note-8 note melody door chime in 1995. It has been set up on a battery operation operation

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#Rittenhouse by Withgott on 2012-04-13 00:00
Having issues with my Rittenhouse RCM-4 intercom with radio - the radio feature is not working. Need repair assistance

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#Rittenhouse by Jo Ann Redmond on 2011-10-18 23:20
Good Evening,We have a Rittenhouse Intercom System (solid state Am/FM Radio Intercome) it has got to be at least 30 years old. We are looking to replace the outside speaker box (Nu-tone). Please let us know if this item is still available. We would give you more info on the system, but cannot find s…Purchase or Repair: Ticket Image...
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#Rittenhouse by TONY HOVANEC on 2011-08-09 16:09
HAD LIGHTNING STRIKE AND WOULD LIKE TO REPLACE IF YOU HAVE A RETRO UNIT TO REPLACE IT THANK YOU

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King, NC 27021
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