Rittenhouse Service & Repair Forum

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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— Posted by Jamie Wingler on 2009-08-30

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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

#Rittenhouse by Jo Ann Redmond on 2011-10-18 23:20
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: Ticket Image...
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#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 Larry M Biviano on 2008-11-21 02:47
have hooked up several ways appear to only chime once as if wired for back door.clock woriks fine, does ot chime on all tones

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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 Leslie Southern on 2009-06-05 13:08
We are looking for the Rittenhouse C8931R Wireless Chime Receiver.We are an electrical contractor and are working with a customer who loves her chime system but wants to expand it to other areas of her home.Can you point me in a direction to locate one of these?Thank you.

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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 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 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 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 SUSAN R BOYD on 2006-05-16 13:16
My mom and dad has an old (approx.37yrs) rittenhouse intercom system and they need a replacement bulb for the main unit. I\'ve tried searchingonline but since mom nor dad know the exact part # i\'m having no luck.Dad said it was a low wattage pilot lamp?? GE19 or R19???? Any help you can offer would…Purchase or Repair: Ticket Image...
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#Rittenhouse by Jim Drouillard on 2008-05-16 02:50
I have the above mentioned door chime (Rittenhouse door chime model C8536) that does not work correctly. There where some broken wires from the transformer coils that I soldered back on and now it does not work correctly. Do you have a schematic for this unit?

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#Rittenhouse by Mike on 2025-06-05 15:12
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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#Rittenhouse by Howard Robertson on 2012-11-19 01:59
intercom system does not work.would like to have it repaired.

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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 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 Diane McCracken on 2010-10-26 15:22
Do you sell parts? I am looking for a replacement potentiometer for an Emerson-Rittenhouse RC 633. It is labeled Clarostat 140-6747/ 135-51.

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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 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 Hoffman—> …Purchase or Repair: Ticket Image...
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#Rittenhouse by IRA G NICHOLS on 2025-07-08 20:58
I have a rittenhouse model c8204 that stopped working, had been working for years. New outside doorbell installed my be the cause.Can I test the bell by shorting the two screw terminals on the rittenhouse inside unit.

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#Rittenhouse by Andrew Lazazzera on 2018-02-05 18:04
Have Model DS-2 Door Sentry w/ 16v. chime transformer -Rittenhouse #30 or = need local chicagoland technician to trouble-shoot the control box w/ its transformer.-believe transformer is problem.

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#Rittenhouse by mccammond99@att.net on 2016-03-19 17:03
is there anyway i could get another one of these door bells?

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#Rittenhouse by j and c on 2009-01-23 19:43
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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#Rittenhouse by Frank Giudice on 2009-10-23 16:36
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 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 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 Linda La Bruna on 2011-10-16 18:45
I have a Ritten House RM-2 Radio Intercom in original box with original instruction booklet AND an OR-11 Outdoor Remote Station I am looking to sell.If you or someone you know would be interested, please contact me.

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#Rittenhouse by matt arendt on 2009-02-08 18:51
need troubleshooting info on rittenhouse model m7900 amp ser# 3060-0074-2091. also, price and availability of parts as i am working on an intercom system in a 8 unit condo.

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#Rittenhouse by paul suter on 2007-02-12 03:05
I have a old intercom in an apartment building that has door locks, buzzer, and voice. the call and voice speaker does not work. all the other apartments are working good. Is there a replacement for the apartment units. or a upgrade?

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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 phil hartshorn on 2017-01-10 16:24
need wiring diagram for c8538r door chime

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#Rittenhouse by David Peterson on 2006-03-01 03:17
The reception is pretty poor and weak on the volume. Do your know if there is an transisterized replacement receiver that will fit into the 1970\'s model. Thanks, David......

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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 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 J. G. Colbert on 2010-09-28 22:30
The rheostat is broken on this unit otherwise the unit is as melodious as it was 40 years ago.The numbers on the rheostat are 1406417 and 135-51 The motor is a Telechron synchronous motor. 118V--16 Model 3151 RPM 3. W. 4.CantI purchase the replacement rheostat and have it shipped to PMB 399 at the a…Purchase or Repair: Ticket Image...
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#Rittenhouse by Robert King on 2010-08-02 01:52
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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#Rittenhouse by Romeiser on 2015-01-12 13:41
There is a malfunction in the Rittenhouse C8578-1 135-7351-01 door chime, disrupting the production line. Immediate repair is required to resume operations

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#Rittenhouse by Kenneth Jackson on 2009-06-25 01:00
I have had this for almost 50 years and the clock does not work, for some unknown reason, and the chimes are weak sounding and miss at times. I need help. Can this be repaired?

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#Rittenhouse by DANNY on 2010-05-06 16:48
I AM A ELECTRICAL CONTRACTOR AND HAVE BEEN TOLD THAT NUTONE WILL WORK USING EXISTING WIRING THE PROBLEM IS NUTONE WILL NOT WARRANTY IF YOU DO NOT USE NUTONE WIRE, BUT THEY DO HAVE A 30 DAY RETURN POLICY TRY THE SYSTEM IF IT DOES NOT WORK TAKE IT BACK ASAP

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#Rittenhouse by Angela on 2015-11-22 00:03
i am looking for the cover of the door chime for the above model that needs replacing.

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#Rittenhouse by curtis gast on 2015-03-16 02:25
new home to me. system not working. any help would be great. thanks

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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 Joseph LaBarbera on 2012-06-11 14:33
Would like to know if there is a replacement for this unit or where I can find a replacement knob for the Talk Listen stalk.

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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 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 Tom Mitchell on 2005-11-30 17:54
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 prov…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 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 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 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 Don Meierhoff on 2013-01-01 10:50
Need a schematic for the Emerson-Rittenhouse Model rm20/rm22. Need to know transistor replacement numbers for the front end tuner.Thanks,Don

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