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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β€” Posted by Tom Mitchell on 2005-11-30

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Recent 312 Comments

#Rittenhouse by Franklin D Bamsey on 2011-08-22 12:52
Push the outside button and the bell does not work. It has been in the house since it was build in 1988. Any suggestions?

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#Rittenhouse by Jennifer Walker on 2009-04-26 01:22
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: Ticket Image...
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#Rittenhouse by peter oliver on 2009-07-16 23:50
I am looking for a remote button for this system.Would possibly trade a receiver unit as I have extra.

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#Rittenhouse by Lori on 2008-12-29 00:49
Years ago lightening hit house the chime stoped working the unit is in the kitchen and of coarse the door bell at the front door to push with finger ..doesnt work anymore can this be fixed ??/

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#Rittenhouse by stan j korzinski on 2011-10-14 21:39
model c8550 8 note melody needs motor

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#Rittenhouse by Diane P on 2019-05-22 14:20
I have a rittenhouse westminister door chime master model 631 and 632 that I removed from my family home when it was being sold. I have everything except the Rittenhouse no. 42 transformer, which is need before the electrician can install it in my home. Do you have this transformer or know where I c…Purchase or Repair: Ticket Image...
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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 Robin Campbell on 2017-09-10 05:21
I have a Rittenhouse master model 550 and 551 doorbell to be tested and repair if needed.

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#Rittenhouse by randy connelly on 2010-04-12 00:59
I need a Rittenhouse door bell botton part number C8000. Is this womethign you may have?

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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 Jason on 2021-11-27 23:30
I believe it was 16v AC current . not DC at least thats how mine is.

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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 Bill Chellberg on 2010-09-18 22:20
What transformer do I need for this?Thanks

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#Rittenhouse by Larry Yudkowitz on 2020-05-13 00:16
I have Model 380 16V. I had connected it ot a Ring Video 2 Doorbell and it worked fine for several months. Now there is a loud humm coming from the chime. I think the Ring ihas a problem. Ring says the chime may not be compatible. Ring says the model 382 is compatible. Whould you know the difference…Purchase or Repair: Ticket Image...
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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 Gregory Luchey on 2017-03-26 21:44
Door Bell repair motor needed

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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 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 patrick stark on 2013-12-05 15:48
need wiring, replacement parts and pic of the model noted above. front door pushbutton lights, but no response from chime unit. the backdoor is working normal one chime. What may be wrong? the unit has a selector switch to scroll thru various chimes.

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#Rittenhouse by tom roegner on 2008-09-26 22:07
Eight chime unit {552} repeats sequence continually until switch is disconnected. Switch has been replaced but problem continues----any ideas and is it repairable.....

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#Rittenhouse by JENNIFER SMITH on 2011-09-21 15:16
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: Ticket Image...
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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 Mark Danko on 2015-09-10 19:17
Hi, need repair to this unit, sound cuts in and out when volume control knob is turned/wiggled. Moving molex 5 pin connector on circuit board also causes power to cut in and out. Mode delector knob has become stiff to operate. Please send estimate if repair is possible, thanks

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#Rittenhouse by Scott Steffens on 2015-09-15 22:03
I have a Artolier Lighting & Sound Div - Emerson Electric Co / Rittenhouse Operations Honeoye Falls, NY 14473 Model C8577 - 16 Volts. Do not know how to wire. It was working when it was taken from another home.This home is set up with one front door bell - ding dong doorbell on 1st floor and the Rit…Purchase or Repair: Ticket Image...
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#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 Chuck Duncan on 2013-03-20 00:35
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 joe Delle Dinne on 2011-12-20 00:25
I would like to know if spare components are still available? eg transistors and LM283T 5 pin audio amp or regulator? Or is there a replacement UNIT and what is the cost for a compatible unit.

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#Rittenhouse by Jens on 2007-09-29 19:23
Hi We stock this lamp in Sweden Price is 2 $ each + shipping (mail)JENSwww.JENSIgame.comJens@jensigame.com

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#Rittenhouse by Harry Yagi on 2017-05-11 12:40
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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#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: Ticket Image...
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#Rittenhouse by Bernard Zeifang on 2014-02-18 15:19
Please provide information needed to ship my unit to you for repair estimateand possible repair.I am assuming you need only the radio(master unit).Thank you!

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#Rittenhouse by Jay Sturm on 2007-02-24 18:35
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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#Rittenhouse by chris on 2015-08-27 21:30
I have gone through the trouble shooting I have 16 volts to the main unit just nothing coming out of main unit. like its acting as if there is no voltage. will not power up, no intercom, no radio is it replacement time or can this be repaired relatively cheap?

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#Rittenhouse by Yale Wolff on 2011-03-15 15:01
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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#Rittenhouse by Ken Selinger on 2012-06-06 02:03
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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#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 Ellen on 2011-12-23 17:22
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: Ticket Image...
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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 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 Agnes R. Kellan on 2009-11-06 01:18
I have my radio-intercom since 1969--In hasn\'t worked for about three years. I have two stations.

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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 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 John Zeitler on 2012-12-05 22:32
I am looking for the cover that is a black plastic 8 3/8\" wide, 5 1/2\" high, and 2 1/8\" deep. Any idea where I can find a suitable replacement? Thanks.

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#Rittenhouse by Jim Fields on 2012-11-19 16:03
I have a schematic for Models M7010, M7011, M7012, M7020. The document also has AM Alignment, FM Alignment, Troubleshooting chart, and list of replacement parts for printed circuit board.

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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 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 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 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 radu munteanu on 2022-04-20 17:35
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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#Rittenhouse by Emily Gladden on 2016-10-16 21:20
When you press our door bell button a chime is not coming out of the box in the outlet.

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