Rittenhouse for Service call 1-336-969-0110 at Industrial Electronics Repair

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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— Posted by Tom Mitchell on 2005-11-30

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If you need your Rittenhouse unit tested or repaired,
give us a call at 1-336-969-0110.
We offer free estimates and extended warranties on the work performed.
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Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
Phone: 1-336-969-0110

Recent 312 Comments

#Rittenhouse by Jim on 2010-05-01 22:41

I have the above model doorbell and really like the sound vs. the new \"electronic sound\" doorbells. Problem is the mechanism inside the doorbell (the part with the two knockers that the wires attach that hit the bells to make the sound) no longer works. Can I still get this part replaced and if so…Purchase or Repair:

#Rittenhouse by ElectraChime on 2017-01-22 03:43

I can make new bells for this chime. See my sites: doorbellmuseum.org and electrachime.comBestRobert

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#Rittenhouse by Albert M. Brien on 2012-07-29 04:52

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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#Rittenhouse by sheila on 2011-09-05 18:24

Would you know where i can find a C8931R?

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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 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:

#Rittenhouse by karen varel on 2011-09-07 00:53

Do you sell parts for rittenhouse dooor chimes specifically Model #C8550 or do you know where I can get them?

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#Rittenhouse by villanes on 2015-09-04 21:54

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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#Rittenhouse by STEVE on 2013-10-30 16:58

where can i find a schematic for a rittenhouse rm-20/22 intercom am fm radio

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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 Mark Ivess on 2011-08-01 00:00

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:

#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 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:

#Rittenhouse by Paul on 2016-09-11 18:49

Are you able to repair it?

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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 Edith Whitaker on 2012-04-10 15:32

some unit owners intercom is not working, needs repair. Who can we call on this?

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#Rittenhouse by Barb C on 2009-03-27 12:35

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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#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:

#Rittenhouse by FLORENCE LUM on 2010-01-22 03:42

Is there someone in Honolulu, HI whom I can contact to test and repair my intercom, and replace my ON/Off switch @ the MASTER SPEAKER?We have enjoyed our unit for many years, since 1968.

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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 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 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 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:

#Rittenhouse by GENE LAYNE on 2016-07-28 12:11

Can you advise if a Emerson Rittenhouse RC 577 Doorbell mechanical chime will work with a 24V Transformer?I have a 16V and wanted to add a camera to this?ThanksGene 732-754-1205I cannot locate a manual im guessing this was made in the 70\'s

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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:

#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 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 Paul Winchock on 2018-10-15 21:41

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:

#Rittenhouse by R.Sarin on 2010-08-11 23:11

Hi I need a cover for the rittenhouse door chime model 380 can u pls get back to me thank you

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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 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 carolyn berkey on 2011-08-04 23:15

our unit has power and the light comes on but nothing works. The electrician says it is not the transformer.

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#Rittenhouse by Peter Taylor on 2013-02-15 23:47

I have a Ritten House Master Model 631 & 632 in my shop for repair. I would like to obtain a service manual for this item. Please advise if this is available. The clock is in bad shape as it fell of a wall and is in many pieces. Some of which I shall need to purchase.Please advise Peter TaylorTaylor…Purchase or Repair:

#Rittenhouse by Doug on 2011-10-01 20:21

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:

#Rittenhouse by Marcy Berry on 2011-03-03 21:25

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:

#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:

#Rittenhouse by Kathy on 2016-08-16 17:08

can i have this unit repaired and what do i need to do.

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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 phil hartshorn on 2017-01-10 16:24

need wiring diagram for c8538r door chime

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#Rittenhouse by vero cho on 2007-06-19 19:49

sheetrocking my house after it was flooded by katrina, the contractor stupidly threw away the master station to my doorbell/radio/intercom system which rendered the system inoperable. i have asked an electrician friend to look at it and he cannot find a suitable retrofit. we will have to replace the…Purchase or Repair:

#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 TONY HOVANEC on 2011-08-09 16:09

HAD LIGHTNING STRIKE AND WOULD LIKE TO REPLACE IF YOU HAVE A RETRO UNIT TO REPLACE IT THANK YOU

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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 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 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 Richard Baer on 2012-03-06 23:58

This unit puts out a chirping sound (Similar to sound of a smoke alarm) on a continuous basis, one chirp about every 30 seconds. Please advise what I should do, short of disconnecting the unit, to stop this annoying sound.Thank you,Richard Baer

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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 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 jimmy jamison on 2008-04-08 19:34

we have modle m7035 the door bell and gate buzzer in still workes but the talk butten and volumne dose not. would like to fix or replace unitplease help thank you

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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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Tobaccoville, NC 27050
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