Troubleshooting Rittenhouse: Common problems and repair info

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Rittenhouse Service & Repair Forum

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 time to read this email.Regards,Paul Winchock

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— Posted by Paul Winchock on 2018-10-15

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Recent 315 Comments

#Rittenhouse by vera price on 2009-07-29 12:53

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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#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 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 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 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 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 James A. Mann on 2008-06-26 12:40

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 The speakers look out of date and would like a better main unit.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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#Rittenhouse by Charles Rose on 2009-12-22 23:34

Need base station repaired. Would purchase old

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#Rittenhouse by Dale Adams on 2018-05-15 14:40

I need my rcm 4 repaired or replaced

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#Rittenhouse by scott grim on 2009-07-22 11:43

I\'ve recently come in the possesion of an emerson-rittenhouse model 633 door chime and clock. Somebody must have placed 120volts of power to the 16 volt circiut burning out all the electronics. I need all the electrical components including the hammars and motors. if anyone knows where i can get pa…Purchase or Repair:

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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 Paul on 2016-09-11 18:49

Are you able to repair it?

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#Rittenhouse by craig cipriani on 2011-11-03 15:22

I hav a door chime and clock rittenhouse model 631 and 632 i need a wiring diagram for. any help i can get is appriciated thank you

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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 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 tony on 2011-08-16 17:00

where can i find rittenhouse intercom/radio part??

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#Rittenhouse by Cyndi Taylor Krier on 2010-11-17 22:19

Can I order a replacement transformer for this doorbell from you?

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#Rittenhouse by Diane Reichard on 2010-04-14 13:54

Hello! Do you have any parts for Rittenhouse (Emerson) All Transistor Radio-Intercom System, Model RM-1 (AM radio) or RM-2 (AM/FM radio)? Our system dates from the 1960\'s--still going strong. But I need knobs and especially the instruction manual because I don\'t know how to answer and use the exte…Purchase or Repair:

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#Rittenhouse by James Short on 2013-02-24 20:40

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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#Rittenhouse by Fred on 2011-05-25 04:18

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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#Rittenhouse by David Smith on 2009-03-16 13:36

I need the three coils for the 526 Rittenhouse. ( a power surge burned 2 of the three).

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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 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 Paul Gilbert on 2016-06-07 01:02

Need to replace existing bell system with new Paul gilbert

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#Rittenhouse by Oscar Soltero on 2015-08-15 17:20

Hello, I am inquiring about part number Rittenhouse C8578-1 135-7351-01, which seems to be a door chime. My client is experiencing issues with it and would like further information on how to address the problem. Thank you for your assistance.

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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 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 Larry Graham on 2011-01-02 02:03

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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#Rittenhouse by Cathy Kirkwood on 2014-08-21 21:30

I purchased a home in Honeoye Falls, NY. It has an RCM 3 intercom that works and I would like to get a manual for it. Is it possible to get instructions for it?

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#Rittenhouse by macgretz on 2017-04-19 20:58

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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#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 A.L. Richard on 2010-08-09 13:32

My home was built in 1965 with the same Rittenhouse intercom/radio system that doesn\'t work anymore. I would like to upggrade with intercom/radio/ satellite radio system can you do the work? What would be the estimated cost?

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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:

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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:

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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 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 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 Dick on 2018-12-06 23:40

Part #C80Q0 door bell switch.Can I order a replacement ?

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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 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:

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#Rittenhouse by Theresa Perkins on 2008-12-16 16:21

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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#Rittenhouse by Charles Sumrell on 2018-06-16 18:05

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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#Rittenhouse by Colleen Wilkowski on 2011-04-28 15:24

I am searching for a User Manual for the Rittenhouse M9041 AM/FM Radio-Intercom system. The unit is original to the house built in 1982. I have found a tech manual with schematics but now need to locate a User Manual. Any suggestions would be appreciated. Thanks.

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#Rittenhouse by Ken Bentham on 2017-04-25 21:05

Bell is connected to two doors. The front door works fine. The rear door won't ring at all. Can't tell what might be disconnected. Any ideas would be a big help. Thanks.Ken Bentham

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#Rittenhouse by Jorge Crespo on 2015-05-11 04:05

Riitenhouse chime model C8538R to connect into the AC adapter 16 volt .

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#Rittenhouse by Wendy Morris on 2010-01-15 06:14

Our current cover is kind of an almond color. After remodeling our living room, all of the vents, outlets, etc. have been done in white. Would it be possible to purchase a white cover to replace the almond one for our door chime? What would the cost be?Please respond even if not available before I r…Purchase or Repair:

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#Rittenhouse by elena fernandez on 2015-02-27 06:07

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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#Rittenhouse by Lynn Villano on 2011-05-06 13:29

but want door bell to continue working. Can we get wiring schematics?

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#Rittenhouse by dan mazzola on 2017-02-17 16:32

need a sequence timer for a emerson rittenhouse model # 632 631

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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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