Rittenhouse Service & Repair Forum
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 a new cover puchased?Thank you,Miriam
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If you need your Rittenhouse unit tested or repaired,
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Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
Phone: 1-336-969-0110
Recent 312 Comments
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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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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The Rittenhouse C8578-1 135-7351-01 door chime is malfunctioning and needs repair. Urgently seeking a technician to address the issue as it's disrupting daily operations.
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Trying to hook up ring with the rittenhouse 531 model. Not sure how the wiring should be set up? 4 white and red wires with 0-4 posts?
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Tag on door chime unit says:Model 8846RVolt 16Rittenhouse Division Spartan ElectricFayetteville NC 28386The unit has four tubes, it has a circuit board with integrated circuits. The transformer is putting out 18.5 volts, although the unit says 16 volts on transformer and circuit board. I assume the …Purchase or Repair: 
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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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A plunger on my 50 year old door chime is not returning to the rest position when the door chime is not activated. The consequence is a continuous buzz and erratic operation when the button is pressed.Have I provided sufficient information to diagnose the ease of repair?Thank you.Jim—> …Purchase or Repair: 
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Hi there, I'm interested in purchasing the Rittenhouse C8578-1 135-7351-01 door chime. Could you please provide me with information on pricing and availability? I'm looking to source one quickly. Thank you!
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—> Purchase or Repair:
some unit owners intercom is not working, needs repair. Who can we call on this?
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—> Purchase or Repair:
we can not get it to chime in sequence. if doorbell is pressed it chimes once (#4).
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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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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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i am looking for the cover of the door chime for the above model that needs replacing.
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My Rittenhouse Master unit has failed. Is there a replacement unit I can purchase?
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I know this chime assembly is very old but is there a replacement kit for the hammers. they are sticking and perhaps the springs are just too soft. I\'d appreciate any help you can give me.
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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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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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plungers have stopped (tried lube) is model w clock can they be replaced by myself or must this be done by a pro or can the entire panel be more easily replaced thank you
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I have a circa 1977 Artolier Lighting and Sound door Chimes / door bell / wall clock that HUMMS all the time. MODEL # C8633Can it be repaired?
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I have a Ritten House Model 620R that needs to be repaired. The chimes are off of it and I have the motor ?? and clock box just needs to be put back together. I would love to have this repaired for my husband. We came across this clock out of a rental house we own and very sadley our renters damaged…Purchase or Repair: 
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I have read several threads asking about updating an old Rittenhouse system. I would like to do the same, hopefully avoiding the need to replace drywall, etc., since this system is considerably larger than the Nutone products. I couldn\'t find any responses addressing whether or not there were solut…Purchase or Repair: 
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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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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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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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Hello, I am living in the house I grew up in and all of a sudden I noticed thatthe front doorbell was not working. The side doorbell hasn\'t worked for a long time. I have done some research so I will give you the information I have.Nutone Chime Signal, made in USA 1952, Model K 26 902 or 002It is a…Purchase or Repair: 
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I have a circa 1977 Artolier Lighting and Sound door Chimes / door bell / wall clock that HUMMS all the time. MODEL # C8633Can it be repaired?
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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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I have an old Rittenhouse door chime that is missing it's tubular bells. Home built in 1932. Chime cover has two decorative brass musical notes and a few horizontal brass what look like pinstripes. After researching, I believe it's 30's vintage and original to the home. I would love i…Purchase or Repair: 
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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: 
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The installation manual has been misplaced and I am not sure which wires go to which connection. There is a red wire, a black wire, and a yellow with a green wire. The places to connect are for the front, rear, and transformer. Please advise. Also, there is a possibility that the transformer doesn\'…Purchase or Repair: ...
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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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—> Purchase or Repair:
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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—> Purchase or Repair:
I have a Rittenhouse 550, 551 doorbell chime.The unit itself works fine. What I am missing (which someone was supposed to nor trash) is the transformer that sequences the chimes. Do you have a transformer for this that will work? And if so, obviously, what would one cost?Thank you for taking the tim…Purchase or Repair: 
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Our house was built in 1978 and we purchased it in 1997. It had the Rittenhouse monitor system in place with the main unit in the kitchen and smaller units scattered thought the house and in an attached apartment. The unit has never worked since we have been here and I was wondering if it is repaira…Purchase or Repair: 
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We installed our Rittenhouse intercom system in 1978 when we built our new home. The speakers look out of date and would like a better main unit. We have 4 outside units, and 7 speakers.Can we purchase new units and still use the same wiring? Would appreciate a response ASAP. Thanks Jim MannP.S. Ple…Purchase or Repair: 
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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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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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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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—> Purchase or Repair:
I am a property manager who manages a townhome with a broken Rittenhouse intercome system. The speakers on the exterior are installed in the brick so to remove them is a huge project. The main console in the kitchen is what I am looking to repair or replace. The model number is: (looks like) M7034. …Purchase or Repair: 
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I'm looking for a replacement circuit board for a Rittenhouse model C8538. Please let me know where I can purchase one.
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We are also electrical contractor company(Towers Electrical Serv. Inc)We are looking for a model C8931 R Chimer Receiver also a sender unit if possible.We cannot find any info on this item it was made ty Rittenhouse Fayettevilole, nc. 28302
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—> Purchase or Repair:
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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