Rittenhouse Service & Repair Forum

I would like to replace my working existing RMC-4 rittenhouse intercom with a compatible unit. While using the existing wires? Suggestions _ and would you be interested in the old unit and speakers - 8 + 1 doorThanks,

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β€” Posted by Jeff Swiger on 2009-12-09

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If you need your Rittenhouse unit tested or repaired,
give us a call at 1-336-969-0110.
Estimates are free with an approved repair. Declined or unrepairable units are subject to a $75 evaluation, handling, and standard return-shipping fee. Extended warranties may be available.
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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 Bill Chellberg on 2010-09-18 22:20
What transformer do I need for this?Thanks

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#Rittenhouse by Eddie Rodriguez on 2019-10-13 21:47
I have a Master Model 631 & 632, The clock stop working. its showing the red dot on the face of the clock that indicates power failure. The chimes still work fine with no issue. Can you provide instruction on how to test and/or repair. Thank youEddie

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#Rittenhouse by Paul Winchock on 2018-10-15 21:41
I have a Rittenhouse 550, 551 doorbell chime.The unit itself works fine. What I am missing (which someone was supposed to nor trash) is the transformer that sequences the chimes. Do you have a transformer for this that will work? And if so, obviously, what would one cost?Thank you for taking the tim…Purchase or Repair: Ticket Image...
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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 sal on 2018-01-16 16:43
Trying to obtain new springs and strikers/drivers

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#Rittenhouse by Bob Przybylski on 2018-11-28 01:06
I have a Rittenhouse door bell model c8355 and the transformer (that is what I think it is) has failed & does nothing but hum. Can I get a new transformer? or can I buy a replacement at the local home depot or Lowes?

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#Rittenhouse by Richard Burnham on 2021-03-28 21:10
Front and back door bells. I need a diagram showing how to connect the wires from the doorbells. Front works with one wire from Front doorbell going to Terminal B and the other going to Front in the 16 VAC group. I assumed one wire would go from Back doorbell to Terminal A and the other to Back in t…Purchase or Repair: Ticket Image...
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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 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 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 roger crosby on 2009-06-22 18:11
I have renovated my house. I have a Model RC577 chime that is not working. I seem to have all the parts, 4 chimes, motor, etc.Please help me figure out how to repair.thank you

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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 John Reaney on 2017-02-11 01:00
Hello, I have a rittenhouse door sentry. #M9035 w/ a M 9305 door station. The indoor station seems to work, it unlocks the door when the button is pushed. The M9305 out side station is my problem, the speaker is fried and the button is missing. Would you have these items? or where I might find them.…Purchase or Repair: Ticket Image...
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#Rittenhouse by Scott Poulos on 2009-05-23 13:59
I am looking for a replacement unit or one that is compatable and larger to cover existing hole. please respond even if you are not interested or cant get what I need so I can try elsewere.

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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 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 Mark Hefner on 2012-05-18 01:33
I have a emerson rittenhouse rcm 4 main unit with IR6 speakers throughout a house i purchased and am interested in upgrading the entire system. Is there a replacement system where it can be changed out?It will be a few months before I am ready to do it, but am trying to look at options and replaceme…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 Lynn Young on 2015-09-20 19:01
Did you locate the 3 coils you were looking for ? I also need one

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#Rittenhouse by Jeff Swiger on 2009-12-09 21:38
I would like to replace my working existing RMC-4 rittenhouse intercom with a compatible unit. While using the existing wires? Suggestions _ and would you be interested in the old unit and speakers - 8 + 1 doorThanks,

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#Rittenhouse by Franklin D Bamsey on 2011-08-22 12:52
Push the outside button and the bell does not work. It has been in the house since it was build in 1988. Any suggestions?

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#Rittenhouse by curtis gast on 2015-03-16 02:25
new home to me. system not working. any help would be great. thanks

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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 Jim on 2008-12-29 15:59
Are there any Emerson Rittenhouse intercom main stations from the mid-sixties available?

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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 Kathy on 2016-08-16 17:08
can i have this unit repaired and what do i need to do.

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#Rittenhouse by Wendy Morris on 2010-01-15 06:14
Our current cover is kind of an almond color. After remodeling our living room, all of the vents, outlets, etc. have been done in white. Would it be possible to purchase a white cover to replace the almond one for our door chime? What would the cost be?Please respond even if not available before I r…Purchase or Repair: Ticket Image...
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#Rittenhouse by GALLAGHER on 2025-04-27 13:41
Drive or board failure on Rittenhouse M7012 intercom/radio. Needs immediate attention to avoid disruption. Heading to next location now.

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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 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 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 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 2017-01-16 17:16
HAVE --MODEL DS-2 DOOR SENTRY SAYS 'NOT TO CONNECT TO POWER SOURCE OTHER THAN STANDARD 16 VOLT CHIME TRANSFORMER'NEED TESTING OF ITS TRANSFORMER.I THINK ITS THE TRANSFORMER!WHAT IS PROCESS TO FOLLOW FOR THIS?ANDREW h=773-589-0150 c=773-899-0423

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#Rittenhouse by william hogan on 2006-09-05 18:05
I have a rittenhouse am radio intercome that works well. It has 7 receivers + the base unit. can it be changed to fm ? I believe it is a late 60s mdel. thanks

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#Rittenhouse by sheila on 2011-09-05 18:24
Would you know where i can find a C8931R?

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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 isagani l. cua on 2015-03-13 18:40
Sir: Please help me diagnose the problem of my C8204 door chime, andthis morning I heard a noisy sound from the unit. And please give menearest service center here in Chino hills, CalifornialThanks

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#Rittenhouse by Ejschreier@hotmail.com on 2015-03-25 11:15
Lost during remodeling.

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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 Tom Mitchell on 2005-11-30 17:54
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 prov…Purchase or Repair: Ticket Image...
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#Rittenhouse by e. jureller on 2024-12-01 00:00
Urgent Follow-Up Rittenhouse RM Intercom DownDear Team,I am following up on the previous message regarding the non-functional Rittenhouse RM intercom unit. It is imperative that we address this issue

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#Rittenhouse by Gord Sweatman on 2017-09-01 21:46
Removed outer casing - now doorbell doesn't work - noticed loose redwire - where do I attach?

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#Rittenhouse by stan Mc Neely on 2014-02-21 17:39
some ONE TOOK MY 577 Apart, I need a picture of how the Chimes goback on the unitTHANKS

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#Rittenhouse by Harry Yagi on 2017-05-11 12:40
Due to the worn-weakened spring on the hitting bar which do not pop out from the solenoid hole. Do you sell the spring or the entire solenoid with the hitting bar?

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#Rittenhouse by Delia Castillo on 2008-07-29 03:14
we bought this house with installed system. not working. power source not found.

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#Rittenhouse by Billy Hubbard on 2011-01-02 16:44
The Rittenhouse door intercom answering system system was installed in 1978. It is not functioning well. Do you have a newer replacement for it that would still have the doorbell and intercom system? Does a new unit come with the exterior speaker?

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#Rittenhouse by Mark Palmer on 2012-09-06 21:18
I have 2 Rittenhouse intercom speakers that need to be replaced. They both measure 9 1/4\" long. 6 1/4\" wide and 3 1/2\". Do yo have suitable replacements? If so, how much are they? Price of each unit, tax if aplicable and shipping charges for a total net price.Thanks in advance for your prompt rep…Purchase or Repair: Ticket Image...
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#Rittenhouse by Charles Sumrell on 2018-06-16 18:05
Tag on door chime unit says:Model 8846RVolt 16Rittenhouse Division Spartan ElectricFayetteville NC 28386The unit has four tubes, it has a circuit board with integrated circuits. The transformer is putting out 18.5 volts, although the unit says 16 volts on transformer and circuit board. I assume the …Purchase or Repair: Ticket Image...
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#Rittenhouse by charles thomas on 2011-09-14 17:53
I need to purchase a new door bell system comparable with the existing system. I have a one unit on the main level and the other in the basement. The Model number of the existing system is C8203 16 volts AC. I need both units to include outside switch. Also where are the transformers located for thi…Purchase or Repair: Ticket Image...
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#Rittenhouse by Larry Yudkowitz on 2020-05-13 00:16
I have Model 380 16V. I had connected it ot a Ring Video 2 Doorbell and it worked fine for several months. Now there is a loud humm coming from the chime. I think the Ring ihas a problem. Ring says the chime may not be compatible. Ring says the model 382 is compatible. Whould you know the difference…Purchase or Repair: Ticket Image...
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Industrial Electronic Repair
124 Five Forks Dr PMB #208
King, NC 27021
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Industrial Electronic Repair
124 Five Forks Dr PMB #208
King, NC 27021
πŸ“¦ Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.