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.
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
145 Rockwell Place Ct
Tobaccoville, NC 27050
Phone: 1-336-969-0110


Recent 315 Comments

#Rittenhouse by Eric Zetterberg on 2011-02-11 19:49
I have three doorbells connrcted to chimes but only one works, any suggestions?

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#Rittenhouse by Dale Adams on 2006-05-28 16:30
My unit is in need of repair, can you help ?

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#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 Is the technology so out of date that it is not worth restoring?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...
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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 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 Jo Ann Redmond on 2011-10-18 23:20
Good Evening,We have a Rittenhouse Intercom System (solid state Am/FM Radio Intercome) it has got to be at least 30 years old. We are looking to replace the outside speaker box (Nu-tone). Please let us know if this item is still available. We would give you more info on the system, but cannot find s…Purchase or Repair: Ticket Image...
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#Rittenhouse by Ronda Plomteaux on 2007-08-19 15:03
I have a Rittenhouse intercom system and am unsure of the model #. It was installed in the 70\'s. I am painting my condo and would like to replace the ivory cover with a white cover. How would I go about purchasing just a cover? Thank you

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

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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 Adrian Younger on 2008-07-08 00:43
Hello. I have an Emerson-Rittenhouse Door Chime Model RC577 and it has quit working. I was wondering if there is a replacement transmitter available for this chime. It has the motor attached to the transmitter so I don\'t htink I can get a replacement at a store. Any information you could give me wo…Purchase or Repair: Ticket Image...
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#Rittenhouse by Frank Giudice on 2009-10-23 16:36
I have a clock and doorchimes door bell model RC-633.I would like to get relacement part for the door bell part the clock is still working.Can you help me

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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 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 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 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.

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#Rittenhouse by Galen Beaupre on 2019-06-10 14:27
I have a Rittenhouse Model 526.What would cost to test it?

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#Rittenhouse by Dick Dingman on 2009-04-20 19:15
I purchased this residential unit in 1986. It is now giving a significant hum and does not produce all of its chimes.Does this give you a clue as to repairability?

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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 Bob Murley on 2014-10-31 04:57
Is the volume of the chime adjustable?

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#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

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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 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 macgretz on 2017-04-19 20:58
I have a Rittenhouse Emerson Elec Model C8326 (perhaps 1960's) that has stopped working today. The chimes and housing seem okay, but the mechanism and bell button are old and worn out. Do you have replacement parts - and at what cost?

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

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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 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 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 IRA G NICHOLS on 2025-07-08 20:58
I have a rittenhouse model c8204 that stopped working, had been working for years. New outside doorbell installed my be the cause.Can I test the bell by shorting the two screw terminals on the rittenhouse inside unit.

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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 Anthony Butts on 2011-10-02 19:14
The unit works, but possibly in need of some service. The AM radio works , but no FM. There is a bit of background noise in the system.

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

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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 Michelle NEWBY on 2009-05-20 00:04
Wee have an Emerson Rittenhouse doorbell model #RC552-1. The motor has fried itself. Can you repair? Thank you. H - (805) 685-2317

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#Rittenhouse by TONY HOVANEC on 2011-08-09 16:09
HAD LIGHTNING STRIKE AND WOULD LIKE TO REPLACE IF YOU HAVE A RETRO UNIT TO REPLACE IT THANK YOU

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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 miriam spear on 2011-05-16 14:13
Only one of four chimes works, although we detect a faint electronic buzzing, in sequence, of the other three. For example, we hear Chime A, buzz, buzz, pause, buzz, buzz, Chime A. As cover has been lost, we suspect dust and grime is keeping the other hammers from working.Can the unit be cleaned and…Purchase or Repair: Ticket Image...
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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 arnny on 2009-04-14 22:14
I need a power suply for my Emerson-Rittenhouse model RC 633

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#Rittenhouse by Marlene Ilijanich on 2024-06-26 02:50
Hello, I purchased my 4 note-8 note melody door chime in 1995. It has been set up on a battery operation operation

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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 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 john rohter on 2011-03-03 21:43
Looking for instruction for the door chime opporation.

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#Rittenhouse by David on 2018-03-04 18:16
Have you ever heard of a response on the Rittenhouse 631/632. I too am refurbishing one and need to know the correct tranformer voltage needed and a wiring diagram surely would help. Any insight?

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#Rittenhouse by Jim Romeiser on 2011-08-18 07:20
My Rittenhouse door chime\'s top plunger does not work, the previous homeowner said when he was hooking it up, by accident the top soleniod was getting power all the time and over heated and it has not worked right since... can this be fixed ????

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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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Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
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Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
πŸ“¦ Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.