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


Recent 312 Comments

#Rittenhouse by Hal Hester on 2016-07-09 23:01
Similiar issue, my doorbell kept sticking. So I replaced the sticky button but now my springs inside the bell housing seem to be sprung and unable to move the plunger the full range to ring or retract.

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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 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 GUY DALFINO on 2013-01-24 17:30
I THINK I NEED A TRANSFORMER CLOCK WLL NOT RUN TX IN ADVANCE gUY

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#Rittenhouse by Alex Gracia on 2009-11-13 05:30
I\'M A ROOFING CONTRACTOR IN HOUSTON. WHILE WORKING ON A PROJECT WE BROKE SOME INTERCOM SPEAKER BOXES AND I RPLACE THEM. I WOULD LIKE TO IF SELL THESE INTERCOM SPEAKERS.

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#Rittenhouse by Richard Greene on 2009-11-07 15:09
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 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\".

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#Rittenhouse by Fred on 2011-05-25 04:18
Art - did you get a reply in answer to your post?I am about to restore the same door chime, you may have info that can help.ThanksFred...

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#Rittenhouse by Charles Cheshire on 2018-07-13 22:04
Cannot reset time seems stripped.Only two of the chimes work.Where are you physically located.ROUGH repair cost.

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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 Howard Hendricks on 2009-07-12 04:29
I have a Rittenhouse Chine door bell with four long poles. The model number is c8578-1, The unit will not work, I noticed two bad diodes, and removed them I am having problems locating the right ones. Is this something you can fix?

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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 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 John Medina on 2013-02-22 19:58
Ubit was working fine, decided to hook up old style HI-FI unit per instructions and started blowing fuses. Looks like I created a short! Can you give me an idea of cost to repair and shipping charges? Thanks, John Medina

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

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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 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 Barbara on 2006-08-27 17:45
This is an old system I would like to replace. Does the wire plugs have to be replaced. I would like sm=omthing that will be compatable with the wire plugs. Do you have any suggestionsThank You

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#Rittenhouse by Hans Otto Mertens on 2008-01-01 23:36
The main unit needs repair!H.O.Mertens

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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 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 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 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 Tom Bell on 2019-04-10 01:02
I have a Rittenhouse 631/632 doorbell that works ok but the clock motor is noisy. Can I buy a replacement motor for it?

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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 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

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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 sal on 2018-01-16 16:43
Trying to obtain new springs and strikers/drivers

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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 Tobie Ross on 2018-04-13 02:54
I have a Sears Solid State Am-FM Master Station Radio/Intercom Model 113.35150 built by Emerson Electric. Can you repair this station. Please advise/

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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 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 Charles Rose on 2009-12-22 23:34
Need base station repaired. Would purchase old

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#Rittenhouse by Tom Gleason on 2011-03-31 01:27
Looking for a sequencer box for a model 552 doorbell chime. I know they are rare. Does somebody make a retro fit or do you have a good used one. If none of the above then how about schemetics and I will get one made. Thanks-Tom

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#Rittenhouse by Janice Lopez on 2009-08-12 02:45
I AM LOOKING FOR A DOOR CHIME FOR MY BUSINESS THAT WHEN SOMEONE ENTERS THE FRONT DOOR THAT I WILL BE ABLE TO HEAR THE CHIME IN OTHER AREAS OF MY BUILDING AS WELL. I NEED SOMETHING THAT WILL HAVE A LOUD CHIME BECAUSE MY BUILDING HAS MACHINERY RUNNING ALL THE TIME. CAN YOU SEND ME SOME INFORMATION. TH…Purchase or Repair: Ticket Image...
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#Rittenhouse by jim Snyder on 2012-01-12 05:28
A friend of mine has a doorbell that i am hoping to repair and would like to find the wiring diagram for it if possible. The only tag I can find on it saysArtolier Lighting & Sound Div. Emerson Electric Co. Rittenhouse Operations Honeoye Falls NY 14472 Model RC203 or RC208 Volt 10 There are three te…Purchase or Repair: Ticket Image...
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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 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 Snidal on 2015-08-12 07:20
Please provide an update on the status of the Rittenhouse C8578-1 135-7351-01 door chime unit. It is still not functioning, and we need attention on this matter soon. Thank you.

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

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#Rittenhouse by Koos on 2015-07-17 20:20
Hi there, I'm inquiring about the Rittenhouse C8578-1 135-7351-01 door chime. I need to know if it can be repaired or replaced. Trying to check this off my to-do list. Thank you!

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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 Hoffmanβ€”> …Purchase or Repair: Ticket Image...
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