Rittenhouse Service & Repair Forum

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

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β€” Posted by Eric Hoffman on 2007-12-23

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If you need your Rittenhouse unit tested or repaired,
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Industrial Electronic Repair
124 Five Forks Dr PMB #208
King, NC 27021
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 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 Is the technology so out of date that it is not worth restoring?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 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 Charles Rose on 2009-12-22 23:34
Need base station repaired. Would purchase old

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#Rittenhouse by Maryellen Boudria on 2009-07-19 19:15
I have a Rittenhouse chime Model #410 with it\'s companion two chime on second floor of our 1927 home. The door bell chime works however we are not getting all chimes to work. Only two tones downstairs. Can this be repaired? Please advise.Also, can you tell me how old this model of Rittenhouse is?Ma…Purchase or Repair: Ticket Image...
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#Rittenhouse by dominic Carini on 2009-07-28 00:55
Ihave about a 30 year old rittenhouse with 4 chimes.It seems that the solenoids that activate the strikers,are getting a little lazy.I have had one apart and try to clean it ,with not much succes,I even lost one of those tiny springs. I tried to replace it with a similar one ,but it\'s not right.Do …Purchase or Repair: Ticket Image...
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#Rittenhouse by Mary Anne Fuscaldo on 2009-12-25 23:04
I moved this door chime/clock when it was working from one home to another. The electrician that hooked it up did not do it correctly and I have no schematic for how it should be wired. I know it needs three wires but not sure on which of the 7 screws they get wired to. They do not indicate Com or T…Purchase or Repair: Ticket Image...
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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 Bill Chellberg on 2010-09-18 22:20
What transformer do I need for this?Thanks

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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 Jamie Wingler on 2009-08-30 05:41
I have an inoperative Rittenhouse Model 7021 intercom system as well. Can I fix it or do I have to buy new?

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#Rittenhouse by Jessica Memmott on 2010-07-22 18:45
My model 552 is not working. Licensed Electrician checked it out and it need replacement parts. I want to keep actual doorbell, because of sentimental reasons.

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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 GALLAGHER on 2025-04-27 13:41
Drive or board failure on Rittenhouse M7012 intercom/radio. Needs immediate attention to avoid disruption. Heading to next location now.

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#Rittenhouse by Withgott on 2012-04-13 00:00
Having issues with my Rittenhouse RCM-4 intercom with radio - the radio feature is not working. Need repair assistance

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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 Deborah Braid on 2009-12-14 16:48
I have an old rittenhouse 7021 (I think) it is from 1978. It needs a new from cover and the dial to change the stations doesn\'t work. Otherwise it works. Can it be fixed and about how much?

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#Rittenhouse by Chris Pellicano on 2009-11-11 03:52
I would like to get an estimate on testing and repairing any needed parts of our antique ( assuming it is antique,) doorbell. I love the way it sounds, from manually striking the chimes, but doesn\'t seem to work...

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#Rittenhouse by Mark Malan on 2017-05-17 14:32
My manual says 4-8 Note Chime Models (534, 535, 552, 577, 618, 633). I don't know which one I have. It has long chime tubes and a clock on top. The door bell works great, but the clock doesn't.

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#Rittenhouse by vandewater on 2025-05-14 19:14
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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#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 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 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 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 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 Edith Whitaker on 2012-04-10 15:32
some unit owners intercom is not working, needs repair. Who can we call on this?

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#Rittenhouse by Steve Macha on 2026-05-28 22:10
Portion of control board was electrically shorted. Troubleshooting is underway. A circuit diagram and parts list would be helpful. How can I obtain them?

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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: Ticket Image...
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#Rittenhouse by DeLane Smith on 2008-09-16 13:35
I need a address to send this unit to get it repaired

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#Rittenhouse by TR on 2007-10-27 18:13
I have a Rittenhouse intercom system that was installed in the 60\'s that worked fine until recently. Everything still works fine except the main intercom/control unit. Is there a replacement unit I can buy that I can use with all my existing speakers, etc throughout the house? Even a unit that only…Purchase or Repair: Ticket Image...
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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 Sharon on 2016-11-27 00:16
we have an old rittenhouse intercom system. the units look old but still works fairly well. need information on how to update system. we're remodeling in some areas and would like to check out updating units. don't have specs on the system. not sure of specs but Name on the system is Ritte…Purchase or Repair: Ticket Image...
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#Rittenhouse by Morris Hoagland on 2014-01-05 03:53
My Rittenhouse Master unit has failed. Is there a replacement unit I can purchase?

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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 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 Delia Castillo on 2008-07-29 03:14
we bought this house with installed system. not working. power source not found.

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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 colleen on 2010-03-10 04:32
i have a model 7035 that was removed from the wall to repair the wall. Now I need to reconnect - but don\'t know how the wires go together. Are there any instructions available?

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#Rittenhouse by David Bergeron on 2017-10-23 07:12
wonder if I can acquire 1of the 3 boxes that throws the donger to. ring the far right chime of 3

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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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#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 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 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 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 vero cho on 2007-06-19 19:49
sheetrocking my house after it was flooded by katrina, the contractor stupidly threw away the master station to my doorbell/radio/intercom system which rendered the system inoperable. i have asked an electrician friend to look at it and he cannot find a suitable retrofit. we will have to replace the…Purchase or Repair: Ticket Image...
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#Rittenhouse by Jeffrey on 2008-11-22 22:27
This problem may be caused by a lighted doorbell. After the bell is wrung, the light will re-illuminate. When that happens it may be drawing just enough power to make the door chimes think that the button was pressed once again. This is a repeating pattern.If a lighted door button is used, the solut…Purchase or Repair: Ticket Image...
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#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

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#Rittenhouse by rosemary ortiz on 2009-11-11 22:30
we can not get it to chime in sequence. if doorbell is pressed it chimes once (#4).

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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 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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Industrial Electronic Repair
124 Five Forks Dr PMB #208
King, NC 27021
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Industrial Electronic Repair
124 Five Forks Dr PMB #208
King, NC 27021
πŸ“¦ Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.