Rittenhouse Service & Repair Forum

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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β€” Posted by Larry Graham on 2011-01-02

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Industrial Electronic Repair
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King, NC 27021
Phone: 1-336-969-0110


Recent 315 Comments

#Rittenhouse by isagani l. cua on 2015-03-13 18:40
Sir: Please help me diagnose the problem of my C8204 door chime, andthis morning I heard a noisy sound from the unit. And please give menearest service center here in Chino hills, CalifornialThanks

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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 Anthony Butts on 2011-10-02 19:14
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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#Rittenhouse by Terri McDougall on 2012-04-06 14:55
Our house was built in 1978 and we purchased it in 1997. It had the Rittenhouse monitor system in place with the main unit in the kitchen and smaller units scattered thought the house and in an attached apartment. The unit has never worked since we have been here and I was wondering if it is repaira…Purchase or Repair: Ticket Image...
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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 Marie Gunderman on 2007-11-26 01:41
We purchased our present home in 1998. It was custom built in 1983 with many upgrades that were available at that time. Unfortunately since we have lived here the system does not work. The main unit is 17\' wide and 9\" tall. There are 12 units scattered throughout the house. They each measure 7.5\"…Purchase or Repair: Ticket Image...
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#Rittenhouse by Krzysztof Charzynski on 2014-11-26 05:14
rittenhouse model 410 not working need repair

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#Rittenhouse by Tedd Boomershine on 2012-04-22 21:49
The clock works fine. Three of the door chimes work, but the fourth and fifth strikers do not work. Do you repair and or have parts to recondition? Thanks, Tedd

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#Rittenhouse by Patsy Goodwyn on 2014-09-27 23:39
We need to replace the long tubes on these chimes. They are look bad and we have lost one of them. Do you have the 4 tubes to replace the old ones with? If so, how much are they? Patsy

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#Rittenhouse by ann chamberlin on 2010-03-07 15:43
Jennifer Walker:Did you ever figure out what to do about replacing your Rittenhouse unit? I\'m in the same boat!Any ideas or products you have come across on your own would be appreciated

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#Rittenhouse by Ronda Plomteaux on 2007-08-19 15:03
I have a Rittenhouse intercom system and am unsure of the model #. It was installed in the 70\'s. I am painting my condo and would like to replace the ivory cover with a white cover. How would I go about purchasing just a cover? Thank you

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#Rittenhouse by Mark Palmer on 2012-09-06 21:18
I have 2 Rittenhouse intercom speakers that need to be replaced. They both measure 9 1/4\" long. 6 1/4\" wide and 3 1/2\". Do yo have suitable replacements? If so, how much are they? Price of each unit, tax if aplicable and shipping charges for a total net price.Thanks in advance for your prompt rep…Purchase or Repair: Ticket Image...
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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 David Strodel on 2010-12-05 00:34
Hi, I have a Rittenhouse 330 Chime that is not working. Is there a way to get a rough estimate of cost? It may be the transformer or the hammers as they are sticky.David

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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 Hoffmanβ€”> …Purchase or Repair: Ticket Image...
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#Rittenhouse by Bob Hilsher on 2010-03-27 16:29
Unit stopped working. Have 16+ volts coming to it but no sound. Assume the syncronous motor is out... Telechron model M3151, Type H18, 3.6 rpm, 60 cy, 16 v. Is the replacement motor available? Price?Could it be anything else? All wiring is in tact on board.Thanks, Bob

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#Rittenhouse by Donna Dodson on 2007-03-02 16:22
I would like to see if I can get this to work. But I don\'t know where to start.

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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 Brent Stoll on 2014-01-07 03:22
Label states Emerson Model S7671Rittenhouse DivisionArtolier lighting & soundEmerson Electric CoHoneoye Falls, New York 14472Second Label statesFire Alarm DeviceSingle and/or Multiple stationHome built in early 70\'s and have not found any information per this model and/ or type of device. If you ha…Purchase or Repair: Ticket Image...
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#Rittenhouse by Bill Corbett on 2022-02-07 13:47
Emerson c8203 replacement transformer?Any help would be appreciated.Thanks, Bill

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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 Gregory Behr on 2026-07-21 17:40
Ive had this unit in storage for years. Its not damaged at all. Its just been sitting unused. I would like to get it back in good shape and use it as our doorbell once again after all these years.

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#Rittenhouse by Dick Dingman on 2009-04-20 19:15
I purchased this residential unit in 1986. It is now giving a significant hum and does not produce all of its chimes.Does this give you a clue as to repairability?

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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 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 Richard Greene on 2009-11-07 15:09
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 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 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: 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 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 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 Bill Chellberg on 2010-09-18 22:20
What transformer do I need for this?Thanks

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#Rittenhouse by Jim Romeiser on 2011-08-18 07:20
My Rittenhouse door chime\'s top plunger does not work, the previous homeowner said when he was hooking it up, by accident the top soleniod was getting power all the time and over heated and it has not worked right since... can this be fixed ????

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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 Earl Miller on 2012-10-11 01:23
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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#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 Steve Macha on 2026-05-28 22:10
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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#Rittenhouse by Tracy BROWNING on 2017-01-13 09:02
I have an old Rittenhouse door chime that is missing it's tubular bells. Home built in 1932. Chime cover has two decorative brass musical notes and a few horizontal brass what look like pinstripes. After researching, I believe it's 30's vintage and original to the home. I would love i…Purchase or Repair: Ticket Image...
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#Rittenhouse by Lynn Young on 2015-09-20 19:01
Did you locate the 3 coils you were looking for ? I also need one

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#Rittenhouse by John Erlinger on 2011-12-01 21:30
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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#Rittenhouse by Dorothy \"Ann\" Imhoff on 2014-10-23 22:17
A Rittenhouse model 312 came with my home. It works but the chimes are not loud enough to heard unless you are in the room where the doorbell is mounted.I would hate to replace it because other than this it is very workable.

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#Rittenhouse by Tobie Ross on 2018-04-13 02:54
I have a Sears Solid State Am-FM Master Station Radio/Intercom Model 113.35150 built by Emerson Electric. Can you repair this station. Please advise/

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#Rittenhouse by Charles Cheshire on 2018-07-13 22:04
Cannot reset time seems stripped.Only two of the chimes work.Where are you physically located.ROUGH repair cost.

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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 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 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 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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#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 Mark on 2017-09-04 20:48
I'm looking for a replacement circuit board for a Rittenhouse model C8538. Please let me know where I can purchase one.

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Industrial Electronic Repair
124 Five Forks Dr PMB #208
King, NC 27021
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Industrial Electronic Repair
124 Five Forks Dr PMB #208
King, NC 27021
πŸ“¦ Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.