Rittenhouse Service & Repair Forum

Just wondering i have a rittenhouse system rcm-1 and the intercom system part does not seem to be working. We can broadcast for the main unit and it is heard in the other units but when we try to broadcast from one of the other units to the main you can not hear the person ? Anysuggestions or do you have a manual that can be downloaded?ThanksDave

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— Posted by dave walters on 2008-10-24

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If you need your Rittenhouse unit tested or repaired,
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Industrial Electronic Repair
124 Five Forks Dr PMB #208
King, NC 27021
Phone: 1-336-969-0110

Recent 315 Comments

#Rittenhouse by radu munteanu on 2022-04-20 17:35
Good day, I would need the wiring diagram for a Rittenhouse Clock Model 631/632. Just saved the clock from our old house before remodel and we want to install it back with a running clock and the chime.Thank youRadu 650-450-4806

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#Rittenhouse by Christopher Cruz on 2011-03-09 13:15
Hellohave a 520 Beverly and it is working but I took it apart and found the rubber grommets and the felt strike pads are bad i am looking for replacements.ThanksChris

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#Rittenhouse by Jeffrey on 2008-11-22 22:27
This problem may be caused by a lighted doorbell. After the bell is wrung, the light will re-illuminate. When that happens it may be drawing just enough power to make the door chimes think that the button was pressed once again. This is a repeating pattern.If a lighted door button is used, the solut…Purchase or Repair: Ticket Image...
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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 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 Dick on 2018-12-06 23:40
Part #C80Q0 door bell switch.Can I order a replacement ?

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#Rittenhouse by stan j korzinski on 2011-10-14 21:39
model c8550 8 note melody needs motor

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#Rittenhouse by Jason on 2021-11-27 23:30
I believe it was 16v AC current . not DC at least thats how mine is.

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#Rittenhouse by John Medina on 2013-02-22 19:58
Ubit was working fine, decided to hook up old style HI-FI unit per instructions and started blowing fuses. Looks like I created a short! Can you give me an idea of cost to repair and shipping charges? Thanks, John Medina

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#Rittenhouse by Candy Cicoria on 2011-07-14 01:45
I recently moved into a house that has the Rittenhouse All Transistor RCM-1 system in every room. It\'s obvious this system has not worked in a few years, but I want to repair it and keep it with the time of the home. A newer system would take away from it\'s appeal. Is there anyone in the Tulsa, OK…Purchase or Repair: Ticket Image...
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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 joe Delle Dinne on 2011-12-20 00:25
I would like to know if spare components are still available? eg transistors and LM283T 5 pin audio amp or regulator? Or is there a replacement UNIT and what is the cost for a compatible unit.

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#Rittenhouse by Derek Rust on 2008-07-26 15:22
I am interested in buying your intercom, I had mine accidentally ripped out during remodelling and need a replacement , does yours work ok?Derek Rust

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#Rittenhouse by Civitate on 2015-07-26 02:20
We are experiencing a critical issue with the Rittenhouse C8578-1 135-7351-01 door chime production line. The key component responsible for the chime sound is malfunctioning, leading to a complete halt in production. Immediate repair service is required to resume operations swiftly. Please address t…Purchase or Repair: Ticket Image...
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#Rittenhouse by Joe on 2012-04-18 13:36
Could you please direct me as to where I may be able to obtain a circuit diagram for a rittenhouse installed in the 1980?Many thanksJoe

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#Rittenhouse by tony on 2011-08-16 17:00
where can i find rittenhouse intercom/radio part??

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#Rittenhouse by Yale Wolff on 2011-03-15 15:01
Have a Rittenhouse intercom system installed in 1956. There appears to be a dead short in the Master.Is there a NuTone Master AM/FM which will work with the satellite room units?

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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 Steve Macha on 2026-05-26 22:27
Discovered circuit short on controller board. How can I obtain a schematic?

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#Rittenhouse by glen e peterson on 2007-08-23 19:16
I h ave a rittenhouse intercom system that does not work star system 9000 I would love to get it to work again. Can you help me with this thankyou glen

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#Rittenhouse by Larry Graham on 2011-01-02 02:03
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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#Rittenhouse by Jorge Crespo on 2015-05-11 04:05
Riitenhouse chime model C8538R to connect into the AC adapter 16 volt .

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#Rittenhouse by David Peterson on 2006-03-01 03:17
The reception is pretty poor and weak on the volume. Do your know if there is an transisterized replacement receiver that will fit into the 1970\'s model. Thanks, David......

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#Rittenhouse by vandewater on 2025-05-14 19:14
just a heads up that the Rittenhouse RM20/RM22 intercom with radio unit went down mid-shift. Can you please check it out and follow up during the day? Thanks!

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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 Barb C on 2009-03-27 12:35
Same as James Mann note - have 1970\'s Rittenhouse intercom---can we replace old system - can we purchase new units but use same wiring??

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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 Koos on 2015-07-17 20:20
Hi there, I'm inquiring about the Rittenhouse C8578-1 135-7351-01 door chime. I need to know if it can be repaired or replaced. Trying to check this off my to-do list. Thank you!

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#Rittenhouse by paul suter on 2007-02-12 03:05
I have a old intercom in an apartment building that has door locks, buzzer, and voice. the call and voice speaker does not work. all the other apartments are working good. Is there a replacement for the apartment units. or a upgrade?

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#Rittenhouse by Tracy BROWNING on 2017-01-13 09:02
I have an old Rittenhouse door chime that is missing it's tubular bells. Home built in 1932. Chime cover has two decorative brass musical notes and a few horizontal brass what look like pinstripes. After researching, I believe it's 30's vintage and original to the home. I would love i…Purchase or Repair: Ticket Image...
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#Rittenhouse by Karen Noll on 2009-11-16 14:27
I am looking for a cover to Rittenhouse, model 912 (possibly 812, numbers are difficult to read). Can you help?

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#Rittenhouse by Tobie Ross on 2018-04-13 02:54
I have a Sears Solid State Am-FM Master Station Radio/Intercom Model 113.35150 built by Emerson Electric. Can you repair this station. Please advise/

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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 Howard Robertson on 2012-11-19 01:59
intercom system does not work.would like to have it repaired.

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#Rittenhouse by A.L. Richard on 2010-08-09 13:32
My home was built in 1965 with the same Rittenhouse intercom/radio system that doesn\'t work anymore. I would like to upggrade with intercom/radio/ satellite radio system can you do the work? What would be the estimated cost?

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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 Jens on 2007-09-29 19:23
Hi We stock this lamp in Sweden Price is 2 $ each + shipping (mail)JENSwww.JENSIgame.comJens@jensigame.com

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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 FLORENCE LUM on 2010-01-22 03:42
Is there someone in Honolulu, HI whom I can contact to test and repair my intercom, and replace my ON/Off switch @ the MASTER SPEAKER?We have enjoyed our unit for many years, since 1968.

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#Rittenhouse by Hal Hester on 2016-07-09 23:01
Similiar issue, my doorbell kept sticking. So I replaced the sticky button but now my springs inside the bell housing seem to be sprung and unable to move the plunger the full range to ring or retract.

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#Rittenhouse by j and c on 2009-01-23 19:43
we have an old set of chimes which were taken from our hallway after a fire, now they require repair, model number is not visible, however, it is a four long pole, with 4 or 8 note feature.would love to repair this

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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 Starla Irvin on 2022-03-20 00:17
Moved in 3 years ago the AM/FM worked but nothing else. Wondering if I could get an estimate

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#Rittenhouse by Ken Selinger on 2012-06-06 02:03
We have an older intercom system M9325 stations, M9318, and M9322. We are wondering if there is anything we can do to reduce the standing hum.Thanks

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#Rittenhouse by Deborah Braid on 2009-12-14 16:48
I have an old rittenhouse 7021 (I think) it is from 1978. It needs a new from cover and the dial to change the stations doesn\'t work. Otherwise it works. Can it be fixed and about how much?

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#Rittenhouse by Ray G. Brubaker on 2017-09-11 14:32
I have a model Rittenhouse # E780DC door bell push button. The center plastic button is broken. I need a replacement . I can use the whole assemblyPlease email me as to where I can buy it. Thank you.

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#Rittenhouse by John Zeitler on 2012-12-05 22:32
I am looking for the cover that is a black plastic 8 3/8\" wide, 5 1/2\" high, and 2 1/8\" deep. Any idea where I can find a suitable replacement? Thanks.

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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 Peter Taylor on 2013-02-15 23:47
I have a Ritten House Master Model 631 & 632 in my shop for repair. I would like to obtain a service manual for this item. Please advise if this is available. The clock is in bad shape as it fell of a wall and is in many pieces. Some of which I shall need to purchase.Please advise Peter TaylorTaylor…Purchase or Repair: Ticket Image...
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#Rittenhouse by ann chamberlin on 2010-03-07 15:43
Jennifer Walker:Did you ever figure out what to do about replacing your Rittenhouse unit? I\'m in the same boat!Any ideas or products you have come across on your own would be appreciated

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King, NC 27021
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Industrial Electronic Repair
124 Five Forks Dr PMB #208
King, NC 27021
📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.