Rittenhouse Service & Repair Forum
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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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
124 Five Forks Dr PMB #208
King, NC 27021
Phone: 1-336-969-0110
Recent 315 Comments
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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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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Hello I have a Artolier Lighting and Sound Emerson Electric Co. Model C8535 the springs need replacing can you please Help thanks Norm
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Dear Sir: I\'m looking for a electric schamitic for an Emerson Rittenhouse intercom Model rm20/rm22. Any help in this matter would be appropriated. Thank You, JAY
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we have an old set of chimes which were taken from our hallway after a fire, now they require repair, model number is not visible, however, it is a four long pole, with 4 or 8 note feature.would love to repair this
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I would like to see if I can get this to work. But I don\'t know where to start.
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I would like to install my RC633 which I removed from my old house. Can you send me instructions? Thank you.
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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: 
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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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We have an older intercom system M9325 stations, M9318, and M9322. We are wondering if there is anything we can do to reduce the standing hum.Thanks
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Same as James Mann note - have 1970\'s Rittenhouse intercom---can we replace old system - can we purchase new units but use same wiring??
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Is there a new updated unit (with new bells & whistles) that can use the existing wiring and wall recesses of the old units. If so, where can I get them and what would be a ballpark pricing? Thanks
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Our house came with this intercom system. Very Old I suspect. Is there anyone who could furnish me with a copy of the ownual\'s manual-instructions? Paul
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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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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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the Rittenhouse C8578-1 135-7351-01 door chime is down. Need someone to check it out tomorrow. Thanks!
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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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Have a Rittenhouse intercom system installed in 1956. There appears to be a dead short in the Master.Is there a NuTone Master AM/FM which will work with the satellite room units?
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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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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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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 of—> …Purchase or Repair: 
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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: 
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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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Can the Rittenhouse C8203 doorbell be repaired or purchased as a replacement? I'm trying to check this off my to-do list. Thank you!
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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 a door bell Model C8229 that started to make a ringing sound. It looks as if the plates are vibrating.
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some unit owners intercom is not working, needs repair. Who can we call on this?
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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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Cannot reset time seems stripped.Only two of the chimes work.Where are you physically located.ROUGH repair cost.
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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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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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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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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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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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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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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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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: 
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Unit was installed late 1960\'s. Need speakers, knobs and covers to upgrade system.
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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: 
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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 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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