Rittenhouse Service & Repair Forum

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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β€” Posted by vandewater on 2025-05-14

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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 315 Comments

#Rittenhouse by Donald Brown on 2017-07-07 23:15
I need to have a bulb replacement performed on a 1980ties vintage bronze doorbell. The spring works fine but light nolonger stays on.Regards, Don

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#Rittenhouse by bill whitacre on 2013-11-16 18:30
need to reconnect wires to front, rear & trans positions.

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#Rittenhouse by edward havertong on 2012-08-11 17:33
I TOOK THE CLOCK TO A ANTIQUE DEALER HE TOOK THE MOTOR OUT AND REPLACED IT WITH A BATTERY UNIT. I AM LOOKING TO REPLACE IT BACK WITH THE ORIGINAL MOTOR.

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#Rittenhouse by Virginia Melchi on 2011-05-25 22:34
Purchased a use Rittenhous Westminster door chime / clock; Tetechron Motored, model #8633. I need a wiring diagram for this unit.Thank you,Virginia Melchi

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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 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

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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 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 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 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...
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#Rittenhouse by Agnes R. Kellan on 2009-11-06 01:18
I have my radio-intercom since 1969--In hasn\'t worked for about three years. I have two stations.

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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 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 Linda La Bruna on 2011-10-16 18:45
I have a Ritten House RM-2 Radio Intercom in original box with original instruction booklet AND an OR-11 Outdoor Remote Station I am looking to sell.If you or someone you know would be interested, please contact me.

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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 Angela on 2015-11-22 00:03
i am looking for the cover of the door chime for the above model that needs replacing.

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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 mike boccio on 2015-08-28 16:39
hi I have a m7034 intercome system.The out door speak into box was flooded by our sandy storm.Needs to be replaced.The wiring is good and it would be easy to replace if I had original replacement kit. thank you mike

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

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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 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 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 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 k. chang on 2009-06-17 02:34
how do we get this old door chime to work again?we\'re already replacing the batteries, what else should we do?thanks

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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 Francis Roberts on 2007-05-24 22:32
Need new springs for the hammers. This is an old door bell and it has lasted about 40 years. The new ones are sick. This is the best I have heard and would like to keep it another 40 years.

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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 Mark Danko on 2015-09-10 19:17
Hi, need repair to this unit, sound cuts in and out when volume control knob is turned/wiggled. Moving molex 5 pin connector on circuit board also causes power to cut in and out. Mode delector knob has become stiff to operate. Please send estimate if repair is possible, thanks

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#Rittenhouse by Clay Johnson on 2015-03-08 20:13
Please provide information or assistance regarding Rittenhouse part number C8578-1 135-7351-01, described as a door chime. Thank you.

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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 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 Mark Hefner on 2013-03-03 02:30
i am looking to replace my intercom system and looking for a new system to replace it with.

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#Rittenhouse by Ray Smith on 2011-11-29 00:44
very low sound no door chime

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#Rittenhouse by Kathryn Fenich on 2007-12-18 20:21
Rittenhouse Solid State AM/FM radio intercom system for house and outdoors

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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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#Rittenhouse by Donna Dodson on 2007-03-02 16:22
I would like to see if I can get this to work. But I don\'t know where to start.

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#Rittenhouse by Krzysztof Charzynski on 2014-11-26 05:14
rittenhouse model 410 not working need repair

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

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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 Frank Spramelli on 2015-02-10 19:04
needs repaired tuning dial is broken.

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#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

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#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

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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 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 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 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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Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
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Industrial Electronic Repair
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Kernersville, NC 27284
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