Rittenhouse Service & Repair Forum

I have a Rittenhouse Home Intercom, Model No. M7010 that had no audio. A technician said the amplifier was bad and he replaced several transistors in it, but the volume is very weak. He does not know exactly what transistors to use to replace the old ones, and does not have a schematic. Can you provide a schematic, or tell me where I might get one? Thanks, Tom Mitchell

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β€” Posted by Tom Mitchell on 2005-11-30

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145 Rockwell Place Ct
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Phone: 1-336-969-0110


Recent 311 Comments

#Rittenhouse by colleen on 2010-03-10 04:32
i have a model 7035 that was removed from the wall to repair the wall. Now I need to reconnect - but don\'t know how the wires go together. Are there any instructions available?

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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 Fred on 2011-05-25 04:18
Art - did you get a reply in answer to your post?I am about to restore the same door chime, you may have info that can help.ThanksFred...

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#Rittenhouse by Mark Ivess on 2011-08-01 00:00
Hey there, I've been tasked with looking into an issue with a Rittenhouse C8578-1 135-7351-01 door chime. I don't usually work on hardware like this, so I could really use some guidance on how to fix or replace it. Any help or advice you can provide would be greatly appreciated. Thanks in advance!β€”>…Purchase or Repair: Ticket Image...
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#Rittenhouse by Norm Negus on 2010-12-02 00:14
Hello I have a Artolier Lighting and Sound Emerson Electric Co. Model C8535 the springs need replacing can you please Help thanks Norm

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#Rittenhouse by Richard Gilbert on 2014-03-13 02:02
Looking to replace the outside door bell speaker Mod. No.M9305

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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 chris on 2015-08-27 21:30
I have gone through the trouble shooting I have 16 volts to the main unit just nothing coming out of main unit. like its acting as if there is no voltage. will not power up, no intercom, no radio is it replacement time or can this be repaired relatively cheap?

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#Rittenhouse by Dan Mazzola Sr on 2020-05-31 15:36
I’m in need of a sequence timer for the above mentioned Emerson Rittenhouse clock/chimePlease advise on getting 1 of them by email or by calling me at 617/590-3509New or reconditioned

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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 Jack Mc Sweeney on 2008-09-10 22:29
This is a two unit intercom and door opener for apartments. Presently, it has current but buzzes the door open without pushing the switch, and has no voice tones.

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#Rittenhouse by van Aree on 2009-02-26 20:19
I am looking for a copy of Rittenhouse rm5 house intercom owner\'s manual.

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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 Jolene Gross on 2015-08-16 14:22
I have a Rittenhouse model c8229 door bell in my home that is not working. I would like to have it repaired.Thank you,Jolene Gross717-781-3692

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#Rittenhouse by O. H. Towers on 2010-01-25 16:00
We are also electrical contractor company(Towers Electrical Serv. Inc)We are looking for a model C8931 R Chimer Receiver also a sender unit if possible.We cannot find any info on this item it was made ty Rittenhouse Fayettevilole, nc. 28302

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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 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 Mark on 2017-09-04 20:48
I'm looking for a replacement circuit board for a Rittenhouse model C8538. Please let me know where I can purchase one.

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#Rittenhouse by sal on 2018-01-16 16:43
Trying to obtain new springs and strikers/drivers

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#Rittenhouse by James L Rockney on 2021-10-04 16:06
The small piston that strikes the chime does not return back to the original position. There is a spring on the piston. It seems like the piston should have a retainer of some sort on the end to hold the spring in place. Is there supposed to be a retainer on the end of the piston to keep the spring …Purchase or Repair: Ticket Image...
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#Rittenhouse by Doug on 2011-10-01 20:21
I currently have this unit for sale on ebay. the wiring is simply two wires from the 16v transformer to the appropriate screw terminals on the printed circuit board and then the \"switch leg\" from each door bell button at the doors you are using attached to the corresponding terminal screw as label…Purchase or Repair: Ticket Image...
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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 Chris Giebel on 2015-07-19 18:20
The Rittenhouse C8578-1 135-7351-01 is a door chime unit that is currently not working. That's the information I have so far.

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#Rittenhouse by GARY KASPRZYK on 2007-12-26 16:12
I HAVE A RITTENHOUSE INTERCOM AM/FM SYSTEM , MODEL # 9042 AND I AM TRYING TO FIND OUT WHAT SIZE[POWER REQUIREMENT] TRANSFORMER [ 4 WIRE] I NEED. I DO NOT HAVE THE OLD ONE. ANY HELP WOULD BE APPRECIATED. THANKS

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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 Art on 2011-02-07 18:45
My dad just passed away and I\'m moving his Rittenhouse Westminster clock/chime from his place to mine before selling the house. I believe it is a model 631 or 632 but I\'m not sure - WHERE CAN I FIND THE MODEL NUMBER? (I\'ve seen pics of what appear to be identical units labeled 631/632).I\'ve got …Purchase or Repair: Ticket Image...
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#Rittenhouse by Rick Martin on 2015-07-19 07:20
The Rittenhouse C8578-1 135-7351-01 door chime unit caused downtime today from 930 AM to 1145 AM, impacting our operations. Need quick resolution before the next shift. Thank you.

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#Rittenhouse by Mark Malan on 2017-05-17 14:32
My manual says 4-8 Note Chime Models (534, 535, 552, 577, 618, 633). I don't know which one I have. It has long chime tubes and a clock on top. The door bell works great, but the clock doesn't.

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#Rittenhouse by JENNIFER SMITH on 2011-09-21 15:16
I have a Ritten House Model 620R that needs to be repaired. The chimes are off of it and I have the motor ?? and clock box just needs to be put back together. I would love to have this repaired for my husband. We came across this clock out of a rental house we own and very sadley our renters damaged…Purchase or Repair: Ticket Image...
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#Rittenhouse by Gary Bowles on 2012-07-17 00:01
Need a wiring diagram to an intercom with a doorbell.Artolier Lighting & Sound Div.Rittenhouse OperationsHonoye, NYmodel: M7034serial: (stamped) 202 (hand written) 0 2234-1748The intercom is powered by a 16 volt transformer on a closet wall. The standard 2-tone doorbell is in the hall. The base unit…Purchase or Repair: Ticket Image...
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#Rittenhouse by Ejschreier@hotmail.com on 2015-03-25 11:15
Lost during remodeling.

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#Rittenhouse by Hans Otto Mertens on 2008-01-01 23:36
The main unit needs repair!H.O.Mertens

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#Rittenhouse by Marie Gunderman on 2007-11-26 01:41
We purchased our present home in 1998. It was custom built in 1983 with many upgrades that were available at that time. Unfortunately since we have lived here the system does not work. The main unit is 17\' wide and 9\" tall. There are 12 units scattered throughout the house. They each measure 7.5\"…Purchase or Repair: Ticket Image...
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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 matt arendt on 2009-02-08 18:51
need troubleshooting info on rittenhouse model m7900 amp ser# 3060-0074-2091. also, price and availability of parts as i am working on an intercom system in a 8 unit condo.

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#Rittenhouse by Qaiser Baig on 2012-07-01 04:25
Hi,Some one open the wires of my door bell Model C8550 (in the bell). Would you please give the wiring/connection diagram for this door bell so that I can re-connect the wire to operate my door bell.You co-operation & early response will be highly appreciated.Regards,Qaiser Baigβ€”> …Purchase or Repair: Ticket Image...
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#Rittenhouse by Mary Anne Fuscaldo on 2009-12-25 23:04
I moved this door chime/clock when it was working from one home to another. The electrician that hooked it up did not do it correctly and I have no schematic for how it should be wired. I know it needs three wires but not sure on which of the 7 screws they get wired to. They do not indicate Com or T…Purchase or Repair: Ticket Image...
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#Rittenhouse by Melvin Chrisman on 2007-02-24 22:05
I have a radio intercom unit that needs to be updated.

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#Rittenhouse by Jim on 2010-05-01 22:41
I have the above model doorbell and really like the sound vs. the new \"electronic sound\" doorbells. Problem is the mechanism inside the doorbell (the part with the two knockers that the wires attach that hit the bells to make the sound) no longer works. Can I still get this part replaced and if so…Purchase or Repair: Ticket Image...
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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 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 TR on 2007-10-27 18:13
I have a Rittenhouse intercom system that was installed in the 60\'s that worked fine until recently. Everything still works fine except the main intercom/control unit. Is there a replacement unit I can buy that I can use with all my existing speakers, etc throughout the house? Even a unit that only…Purchase or Repair: Ticket Image...
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#Rittenhouse by Martin on 2009-02-08 05:30
I have the exact same problem, but it\'s not caused by a lighted doorbell. Without the doorbell connect (and not crossing the wires) the chime mechanism keeps repeating. I\'m not sure whether it\'s because the contacts aren\'t lined up correctly or whether it\'s a wiring problem. I\'ve tinkered and …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 bill morrison on 2006-05-03 03:40
we have an old rittenhouse intercom system. the units look old but still works fairly well. need information on how to update system look without replacing entire system. we\'re remodeling in some areas and would like to check out updating units. don\'t have specs on the system. not sure ofβ€”> …Purchase or Repair: Ticket Image...
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#Rittenhouse by neil Berman on 2009-07-08 05:25
I have a Rittenhouse Model S7806 Smoke/Fire detector system in my 3-level condo. It was there when I moved in so there is no manual for it.My problem is, after a thunder and lightening storm the other day, I came home to find all 3 units ringing. The only way I could silence them was to switch off t…Purchase or Repair: Ticket Image...
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#Rittenhouse by P. Markworth on 2014-01-17 18:45
Do you know of anyone in Central or East Central Ohio who can repair a Rittenhouse electric door chime? It has four, short brass tubes and chimes like The Westminister chimes. Thank you.

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#Rittenhouse by Patsy Goodwyn on 2014-09-27 23:39
We need to replace the long tubes on these chimes. They are look bad and we have lost one of them. Do you have the 4 tubes to replace the old ones with? If so, how much are they? Patsy

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#Rittenhouse by Bil Hoag on 2015-11-11 17:58
Installed in 1987 when we built the house. Has begun sporadic multiple, single dings, all hours, day and night. I have replaced, back up battery and fuse in motor. Now makes a fairly loud buzzing sound also. Thoughts?

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#Rittenhouse by Theresa Perkins on 2008-12-16 16:21
I would like to install my RC633 which I removed from my old house. Can you send me instructions? Thank you.

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