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

—> Purchase or Repair: Ticket Image

— Posted by Tom Mitchell on 2005-11-30

Reply🗨️Ask a New Question Below❓


Recent Comments Search: "Rittenhouse"

If you need your Rittenhouse unit tested or repaired,
give us a call at 1-336-969-0110.
We offer free estimates and extended warranties on the work performed.
Shipping/Receiving:
Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
Phone: 1-336-969-0110

Recent 312 Comments

#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.

—> Purchase or Repair:
➡️ Reply
#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?

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

—> Purchase or Repair:
➡️ Reply
#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

—> Purchase or Repair:
➡️ Reply
#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?

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by David Strodel on 2010-12-05 00:34
Hi, I have a Rittenhouse 330 Chime that is not working. Is there a way to get a rough estimate of cost? It may be the transformer or the hammers as they are sticky.David

—> Purchase or Repair:
➡️ Reply
#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

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by Krzysztof Charzynski on 2014-11-26 05:14
rittenhouse model 410 not working need repair

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by tony on 2011-08-16 17:00
where can i find rittenhouse intercom/radio part??

—> Purchase or Repair:
➡️ Reply
#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?

—> Purchase or Repair:
➡️ Reply
#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...
Show More
➡️ Reply
#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...
Show More
➡️ Reply
#Rittenhouse by Kathie Hiers on 2009-03-11 03:19
I bought a house built in 1950 with an old Rittenhouse door chime, Model #365. I have no idea if it can be repaired. I don\'t have the front door button. The inner workings are very dirty. Do you think it\'s worth sending to you? Thanks, Kathie

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by sheila on 2011-09-05 18:24
Would you know where i can find a C8931R?

—> Purchase or Repair:
➡️ Reply
#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.

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by charles dellasala on 2009-08-08 20:37
7th chime does not work can plunger be lubed if so with what

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by David Hocevar on 2011-12-05 17:56
I have a ritenhouse emerson door chime unit. It just started chimeing for no reason I had to disconnect it to silence it. Now when I hooked it back up nothing happens. Clock doesn\'t work, chimes don\'t work.Model 086331 4 tubed chime It also has a teledcrome syncronis motor. Any hope for it.Thank Y…Purchase or Repair: Ticket Image...
Show More
➡️ Reply
#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...
Show More
➡️ Reply
#Rittenhouse by ElectraChime on 2017-01-22 03:43
I can make new bells for this chime. See my sites: doorbellmuseum.org and electrachime.comBestRobert

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by Kathy Grant on 2018-09-24 16:43
I recently purchased an older home that has a Model # RC-475 - 16 volt door chime that works fine, but lacks the cover. Is it possible to purchase just a cover from you or is something like this no longer available. Amazon has one but the mfg. dimensions wouldn't fit. As close as I can measure …Purchase or Repair: Ticket Image...
Show More
➡️ Reply
#Rittenhouse by scott grim on 2009-07-22 11:43
I\'ve recently come in the possesion of an emerson-rittenhouse model 633 door chime and clock. Somebody must have placed 120volts of power to the 16 volt circiut burning out all the electronics. I need all the electrical components including the hammars and motors. if anyone knows where i can get pa…Purchase or Repair: Ticket Image...
Show More
➡️ Reply
#Rittenhouse by Lynn Villano on 2011-05-06 13:29
but want door bell to continue working. Can we get wiring schematics?

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by Jay Sturm on 2007-02-24 18:35
Dear Sir: I\'m looking for a electric schamitic for an Emerson Rittenhouse intercom Model rm20/rm22. Any help in this matter would be appropriated. Thank You, JAY

—> Purchase or Repair:
➡️ Reply
#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...
Show More
➡️ Reply
#Rittenhouse by martin stacy on 2015-11-30 23:17
Hi, I just moved into house with Artolier Musician M7011 by Rittenhouse which doesn\'t work. I know you don\'t know why it doesn\'t work but any ballpark guesses at repair cost if I ship it to you? My zip is 516539 thx

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by Don Heeter on 2017-01-17 21:38
Dear Sirs, I have a Model RM-2.It was put in when the house was built in 1966.It does not work.Thank you for your help.

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by Melvin Chrisman on 2007-02-24 22:05
I have a radio intercom unit that needs to be updated.

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by John Erlinger on 2011-12-01 21:30
It appears the hammers are sticking or a spring has broken. There are three. Can i get replacement solenoids/hammers, or an estimate to repair the whole Chime unit. Also if you think it would be best to buy new.Thank you.,John

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by Robert King on 2010-08-02 01:52
I know this chime assembly is very old but is there a replacement kit for the hammers. they are sticking and perhaps the springs are just too soft. I\'d appreciate any help you can give me.

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by Kathy on 2016-08-16 17:08
can i have this unit repaired and what do i need to do.

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by Scott Steffens on 2015-09-15 22:03
I have a Artolier Lighting & Sound Div - Emerson Electric Co / Rittenhouse Operations Honeoye Falls, NY 14473 Model C8577 - 16 Volts. Do not know how to wire. It was working when it was taken from another home.This home is set up with one front door bell - ding dong doorbell on 1st floor and the Rit…Purchase or Repair: Ticket Image...
Show More
➡️ Reply
#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

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by carolyn berkey on 2011-08-04 23:15
our unit has power and the light comes on but nothing works. The electrician says it is not the transformer.

—> Purchase or Repair:
➡️ Reply
#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.

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by Jeff Picha on 2011-12-05 14:24
Hello, I have a customer that brought in a door bell unit, the one of theplungers is bent inside. I do not know alot about these things, we work on electric motors. He want to know if he can still get parts for these unit.The model # is c8231. Please inform, I may just send him your way. Thanks for …Purchase or Repair: Ticket Image...
Show More
➡️ Reply
#Rittenhouse by DominicJ. Carini on 2009-07-23 03:03
I have a 30 year old rittenhouse door chime with the 4 sequential chimes, one of the plungers has gone lazy. I took the transformer out to try to clean it and lost the little spring that gives the plunger resistance . Do you have any ideas ?Or do you sell parts, perhaps a whole tansformer. I tried t…Purchase or Repair: Ticket Image...
Show More
➡️ Reply
#Rittenhouse by Kirk Niatsikas on 2014-12-11 19:16
Do you have a rittenhouse rm5 manual?

—> Purchase or Repair:
➡️ Reply
#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.

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by Hans Otto Mertens on 2008-01-01 23:36
The main unit needs repair!H.O.Mertens

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by Doug Wood on 2009-04-27 20:03
Buying a condo with an inoperative Rittenhouse Model 7021 intercom system. Was constructed in late 70s. Is the technology so out of date that it is not worth restoring? Should I consider restoring the unit, about how much am I looking at? Is there a dealer here in AR, or do I have to ship it to you …Purchase or Repair: Ticket Image...
Show More
➡️ Reply
#Rittenhouse by Edith Whitaker on 2012-04-10 15:32
some unit owners intercom is not working, needs repair. Who can we call on this?

—> Purchase or Repair:
➡️ Reply
#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...
Show More
➡️ Reply
#Rittenhouse by Gregory Luchey on 2017-03-26 21:44
Door Bell repair motor needed

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by dan mazzola on 2017-02-17 16:32
need a sequence timer for a emerson rittenhouse model # 632 631

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by Albert M. Brien on 2012-07-29 04:52
I have an older system, it was still working but when a water pipe broke behind my kitchen wall, it soaked the unit and ruined it. I want to know how much it would cost to have it replaced so I can get back the intercom and music function. Thank youAlbert Brien

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by Bill Corbett on 2022-02-07 13:47
Emerson c8203 replacement transformer?Any help would be appreciated.Thanks, Bill

—> Purchase or Repair:
➡️ Reply
#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

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by jason surrette on 2008-05-21 22:34
Don\'t know what\'s wrong with the unit. Do ya\'ll know what the input voltage is supposed to be? The back of the unit says only use a \"no. 35 transformer\".

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by sonny sadler on 2011-11-21 16:12
i would like to have an updated model the one i have was installed in 1977 it makes noise, drifts off stations all controls are noisey and sound is garbled. can you tell me where to get help.

—> Purchase or Repair:
➡️ Reply
#Rittenhouse by DANNY on 2010-05-06 16:48
I AM A ELECTRICAL CONTRACTOR AND HAVE BEEN TOLD THAT NUTONE WILL WORK USING EXISTING WIRING THE PROBLEM IS NUTONE WILL NOT WARRANTY IF YOU DO NOT USE NUTONE WIRE, BUT THEY DO HAVE A 30 DAY RETURN POLICY TRY THE SYSTEM IF IT DOES NOT WORK TAKE IT BACK ASAP

—> Purchase or Repair:
➡️ Reply

Contact Us

🚑Shop Location🛠️

Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
🚑 Rush repair shipments only — no walk-ins.

📞Phone

1-336-969-0110

📦Mailing Address🚛

Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.