Troubleshooting Rittenhouse: Common problems and repair info

Rittenhouse Rittenhouse Intercom

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

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— Posted by Tom Mitchell on 2005-11-30

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Recent 315 Comments

#Rittenhouse by Gregory Behr on 2026-07-21 17:40

Ive had this unit in storage for years. Its not damaged at all. Its just been sitting unused. I would like to get it back in good shape and use it as our doorbell once again after all these years.

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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:

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#Rittenhouse by Brandon on 2010-01-02 05:17

Please contact me about the cover of the door chime Model c8204.We lost it during repainting the wall when we moved in 2 years ago.ThanksBrandon

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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 pyle on 2015-07-10 18:32

Hey, the Rittenhouse C8578-1 135-7351-01 door chime went out mid-shift. Please check it out first thing in the morning. Thanks!

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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!—>…Purchase or Repair:

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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 Bob Hilsher on 2010-03-27 16:29

Unit stopped working. Have 16+ volts coming to it but no sound. Assume the syncronous motor is out... Telechron model M3151, Type H18, 3.6 rpm, 60 cy, 16 v. Is the replacement motor available? Price?Could it be anything else? All wiring is in tact on board.Thanks, Bob

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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:

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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 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 Arturo nunez on 2015-03-23 00:25

the Rittenhouse C8578-1 135-7351-01 door chime is down. Need someone to check it out tomorrow. Thanks!

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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 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 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:

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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:

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#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.

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#Rittenhouse by Gary Bowles on 2012-07-17 00:01

Need a wiring diagram to an intercom with a doorbell.Artolier Lighting & Sound Div.Rittenhouse OperationsHonoye, NYmodel: M7034serial: (stamped) 202 (hand written) 0 2234-1748The intercom is powered by a 16 volt transformer on a closet wall. The standard 2-tone doorbell is in the hall. The base unit…Purchase or Repair:

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#Rittenhouse by Dale Adams on 2018-05-15 14:40

I need my rcm 4 repaired or replaced

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#Rittenhouse by lausanne walter on 2008-08-03 14:55

I have about a 1984 model, 16.5 inches by 9 inch am/fm intercom unit........unit does not work anymore. Cannot pick up radio stations by dialing the knob......do you have a replacement unit that would fit this spot? Or is it repairable?Lausanne

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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 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 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:

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#Rittenhouse by Shigong Yang on 2008-08-27 03:12

The system is old and has not worked when I bought this house. Wish can fine some one to fixe and test it.

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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 Bil Hoag on 2015-11-11 17:58

Installed in 1987 when we built the house. Has begun sporadic multiple, single dings, all hours, day and night. I have replaced, back up battery and fuse in motor. Now makes a fairly loud buzzing sound also. Thoughts?

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#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

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#Rittenhouse by Jim Wilson on 2007-09-11 01:47

Ihave a 20 year old rittenhouse intercon that does not and love to get it working again or replaced can you help

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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 Chuck Duncan on 2013-03-20 00:33

Was working well until I sanded and painted the kitchen. I took the chimes down to paint, put them back and nothing works. I get voltage coming in but it doesn\'t move anything.

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#Rittenhouse by Roshan on 2011-04-18 18:17

I have an old Rittenhouse intercome unit, since I don\'t use it that much, I would like to replace the face of it with something newer, don\'t know if it;s possiable? please let me know how i can do this.

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#Rittenhouse by Chris Giebel on 2015-07-19 18:20

The Rittenhouse C8578-1 135-7351-01 is a door chime unit that is currently not working. That's the information I have so far.

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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 Dorothy \"Ann\" Imhoff on 2014-10-23 22:17

A Rittenhouse model 312 came with my home. It works but the chimes are not loud enough to heard unless you are in the room where the doorbell is mounted.I would hate to replace it because other than this it is very workable.

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#Rittenhouse by Earl Miller on 2012-10-11 01:03

Can I use the existing wiring and recessed wall areas of the old system listed above with a new replacement system. If so, what new updated system will work? Thanks

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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 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 Jack Mc Sweeney on 2008-09-10 22:29

This is a two unit intercom and door opener for apartments. Presently, it has current but buzzes the door open without pushing the switch, and has no voice tones.

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#Rittenhouse by GENE LAYNE on 2016-07-28 12:11

Can you advise if a Emerson Rittenhouse RC 577 Doorbell mechanical chime will work with a 24V Transformer?I have a 16V and wanted to add a camera to this?ThanksGene 732-754-1205I cannot locate a manual im guessing this was made in the 70\'s

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#Rittenhouse by Roy Snelgrove on 2011-02-24 02:47

The door chime is not working properly in that some of the hammers are not striking properly. sometimes they reach the tubes and sometimes not. They are all active but not as strong as they should be .I have turned down the adjuster and none strike and when turned up, it is as I have described . The…Purchase or Repair:

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#Rittenhouse by Richard Greene on 2008-12-30 17:19

I own a late 60\'s Emerson Rittenhouse Model RC633 door bell Chime.The clock works fine but the door bell doesn\'t.I believe there is a problem with the motor.Can I have this unit repaired and approximately the cost?

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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 Ron Abrams on 2009-02-18 02:03

I\'m working on a unit which has been in the family for years.Emerson- Rittenhouse RC 633, 16 voltOne of the solenoid/hammers don\'t work. Seems that the hammer is jammed in the tube. I\'d like to replace the solenoid. How may I order another one.Ron 305 803-5441

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#Rittenhouse by joe matthews on 2015-05-13 16:20

Unit was installed late 1960\'s. Need speakers, knobs and covers to upgrade system.

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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 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 Sylvia on 2016-02-03 03:15

4 out of 10 times whenever I press the button it works.How do I know if the transformer that needs replacement or if the wiring itself that went wrong? I have replaced the button and it should not be the problem itself.How much would it cost if you send someone to fix it?Thanks.—> …Purchase or Repair: