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The outside unit you adapted for our Nutone door-answering intercom arrived a few days ago already. When my husband tried it, he discovered that we had a wiring problem with the inside unit. He was able to fix that, install the part you sent, and the apparatus now works great. Thank you so much for making this available and for the quick service!

We're senior citizens. Although we're still pretty capable, we might appear to be vulnerable to potential criminals. With so many home invasions due to the drug problem, I feel a lot more comfortable now that we can speak with a stranger without opening the door.

In searching for a solution to our problem, I read somewhere about someone not having the paper work that came with the original Nutone product. We have the installation instructions for the Model IK-15 and also the instructions for use in replacing that model. They include wiring diagrams. If it would be of any use to you to have copies of those, let me know to send them to you.

Thanks again to you and Cindy!


February 28, 2017 | Unregistered CommenterMarty

The main speaker on our circa 1993 NuTone IM3003 Master station stopped working. I found Chris's video & followed the simple instructions to remove the unit, then took it in for repair. We got a call only a few days later & picked up the unit.
After wiring it to re-install, the unit appeared dead - no power. I called Chris & he knew immediately that the transformer in our upstairs closet must be the problem. I picked up a new transformer (no extra charge), installed it and voila!
Works great! Chris knows *everything* about these old units & he provides great service - a rarity these days. Thank you Chris & Cindy!

February 20, 2017 | Unregistered CommenterDee

We are very pleased with the workmanship of Northside Service Company. The system is now like new. They replaced the components that had gone out and those that are at the end of their lifespan. I looked into replacing the system, but the cost and effort needed was daunting. This process was very easy and less money. Now we have a like-new system.

They provide instructions for removing the main unit and shipping instructions. It all went smoothly.

Be sure to clean the sub-speakers. I waited until I got the main unit back before cleaning the sub-speakers. The main unit was working great, but the sub-speakers were not. After cleaning the sub-speakers according to their instructions, the entire system sounds and works like new. I was concerned that some of the sub-speakers may need to be replaced, because the sound dropped in and out. But the cleaning fixed all that. We are very satisfied with the results of the repair.

February 19, 2017 | Unregistered CommenterRulon Fronk

Hello Chris & Cindy.
“Finally” after doing taxes, trading off my old SUV for a new one and most importantly, taking my wife out for Valentine's Day. I reinstalled our “Renewed” door chime. It went very well and works very well. If we get another 37-38 years out of it again, that will be great. That said, my wife and I will be celebrating 48 years of marriage this August. Which means that door chime will well outlast us. Thank You again Chris and Cindy for a job well done. Tony & Sharon

PS ............. your videos are Great

February 17, 2017 | Unregistered CommenterTony & Sharon

Thank you very much for your help on the Nutone IMA3303. It is now working. It was speaker number 3 causing the problem. I unhooked the speaker, it was not in a place where it was greatly needed. The other speakers that are needed are working properly.

Thank you for your help. The videos are awesome.

I am now a fan of you videos.

February 17, 2017 | Unregistered CommenterRowena

My wife and I just bought one of the early 1960s “Swanky” houses you reference in the rebuild section for the Nutone 2057. Weirdly enough, when we were looking at the house, I was most excited about rebuilding the radio / comm and bringing it back to full serviceability. I just had a chance today to do what I expected to be a feeble and sad search for manuals and information about the unit, and lo and behold, there you have all of the information I'm looking for. So, that's the Bless You part.

I will be doing the restoration work myself. I've been an amateur radio extra class for 20 years and have fixed and built several radio projects. The down side is that after a couple of moves in the last 3 years, some of my bench gear has gone walkabout. Basic tools I have, but my oscilloscope died, as well as the frequency analyzer. Did you find you needed these tools to complete your repair? Also, did you find that there was much restoring of the satellite (i.e, different rooms' interface units) units required?

Anyway, I will leave this message with a very heartfelt well done. I had expected to have to do this “the old hard way,” with no documents or information. Instead, I find your trove of documents. And when the basic function is restored, it'll be time to add an auxiliary for my Sirius sat radio to run selectable into the 2057 master unit.

Thank you for your effort posting this information about an obsolete device that (to the best of my knowledge) nobody has ever seen work, and they all want to see it work. If you don't mind in future if/when I get stymied by something, I would very much like to contact you for your insight.

Best regards to you and yours, and a wonderful weekend.


February 6, 2017 | Unregistered CommenterAdam

I have an IM-3003 which was installed when the house was built in 1988. It has been slowly degrading and I had a warranty service call about 10 years ago from a local service center. A couple of months ago, in a thunderstorm there was a nearby lightning strike. The clock went blank and after a minute or two, smoke came out from behind the master unit. An internet search turned up several possible replacements ranging from $500 to over $1000. It's not worth that to us.

I found this site. Since I have an electronics background and the necessary tools, I thought (maybe hoped is more like it) I could probably fix it myself. I think Chris provides an incredible service by posting all these manuals and schematics, but that's not the half of it. I saw where he was offering advice to people so I filled out his contact form, halfway expecting to be told to pack it up and send it in. Instead he directed me to a part of the site that lists the most common problems and how to fix them. I had already figured that the probable issue was the audio amplifier chip, but Chris suggested that if the audio amplifier was bad the TTL logic chips were probably bad too. He was right. I followed his recommendations to rebuild the power supply and replaced the audio amplifier chip and the master unit is now working like new. I decided to try not replacing the TTL chips, but the intercom switching is not working right so I'll have to implement his last recommendation as well.

Chris spent a good bit of time responding to my e-mails, he called me and talked with me for around 30 minutes. When I was successful and decided I did not need to send the unit to him I asked if I could compensate him for his time. He refused to take any payment!

Incredible customer support and service for free from someone I didn't buy the unit from.

Thanks Chris!


February 3, 2017 | Unregistered CommenterAL

We have a beautiful Nutone door chime that a friend gave us 30 years ago but after moving to Florida we could no longer use it. Our daughter recently built a house so we
decided to keep it in the family and have it installed there. I called a local electrician who installed it but couldn't get it to work. After searching the internet I found Northside
Service Co and Chris Peters. I gave him a call, described the problem and he said I needed a more powerful transformer so I got the correct one from him, followed his
amazing video and cleaned the unit and called the electrician back. He installed the new transformer and still could not get the unit to work because he replaced screws in the
board causing damage to it. I sent the unit to Chris and he fixed it better than new! I was not going to call that electrician again but I did call Chris and he stayed on
the phone with me and took me through the connection step by step. Now it sounds absolutely beautiful and will remain in our family for many more years. There are not
many companies out there who take such concern with their customers and pride and knowledge in their work. He is a master at his craft as well as a nice person.
I just can't say thank you enough, Chris & Cindy.

January 26, 2017 | Unregistered CommenterHelen Kruckmeyer

Just received my repaired NuTone Radio-Intercom System model IMA-3303 . Installed it and it works fine. Thanks.

January 21, 2017 | Unregistered CommenterOliver / Jackson, Msi

We are restoring an 1891 Victorian style home. It had many 60's 70's updates ..........Drop Ceilings........Paneling.........shag carpet but there was a prize. There was a 1963 model L42 Nu Tone Supreme door chime. We initially removed it removed it because it did not work so we put it away thinking we would eliminate it. We were told by a high end light shop that has been in business for 100 years about it & the owner told us to have it serviced and put it back up!! So I found Chris on you tube & subsequently sent him the base to clean and free up the plungers. It is hanging back on the wall from where we removed it and it is a centerpiece to our restoration project. It sounds amazing!! Like everyone else...........We highly recommend Chris and Cindy Peters of Northside Service Company!! & with much gratitude thank them for the wonderful service they provide.

Keith Owens................... from the Ohio Valley

January 17, 2017 | Unregistered CommenterKeith Owens

After 27 years and two lightning strikes my IM3003 intercom was in bad shape. Chris repaired the unit quickly and it works perfectly. I am very satisfied with the quality of work and everything related to the process. The videos included on the website were very informative and allowed me to return all remote units to service. We have all had negative experiences with this type repair but everything from my initial contact through the website to Chris's telephone call to confirm what was needed, cost and all details was very thorough and done in a professional manner. I wish other companies in the service and repair business would use Chris, Cindy and Northside Service Company as an example of how to communicate with the customer and how to provide proper service for the cost.

January 1, 2017 | Unregistered CommenterFrancis L.

What a great job on my NuTone IM3003 Master station rebuild - thank you Chris! My system hasn't worked for 17 years since we moved into our home, and now that I'm retired, I'm going around the house looking tor projects that need addressing - this NuTone system was a "thorn in my side" and now it's really working well. I just can't believe I waited that long to find you guys and send it to you. Thanks also for the post-rebuild customer service in answering my questions. I had no idea that the prior owner mis-matched a two button remote station with the other three button remote stations for the IM3003 - no wonder it didn't function, but thanks once again to you for finding a used matching three button station I could purchase to replace the incorrect two button station! Sure beats having a hole in the wall to stare at. I also love all your videos - they are extremelly helpful and informative. I even watched videos that didn't even pertain to products I own for the instructions' sake - quite mesmerizing I must say! Hope you and your family have a blessed New Year, and keep up the great customer service!

December 28, 2016 | Unregistered CommenterAlfred M.

Hey Chris.
Great speaking with you today. Chime module all wired up and worked perfectly as expected. The whole system is working flawlessly. We really appreciated your effort and all before the holidays!! You and yours have a very Merry Christmas and wonderful and prosperous Happy New Year. I will return the board you sent in right after the holiday. Again thanks so much and I will be sure to refer your talent every chance I get.


December 26, 2016 | Unregistered CommenterJohn T.

Thanks Christopher for all your help in solving my problems with my NuTone system. You went above and beyond any expectations.
Jack in Leesburg, Virginia

December 14, 2016 | Unregistered CommenterJack McNamee

Good morning Mr. Peters I receive my intercom system yesterday and I installed it it is working like a Swiss watch. Thanks

December 10, 2016 | Unregistered CommenterJames G.

I just received my renovated Nutone IM 3003 Master Station and am extremely pleased. The Master Station is over 30 years old and is now like new. Chris and Cindy, you are true professionals. I would recommend your services to anyone. Thanks. Miike

December 7, 2016 | Unregistered CommenterMichael J. Batchelder

I needed to get a bad HUM out of my NuTone IM3003 intercom. Chris worked very hard to get me a system that worked.

They were very curious, professional, sent back the unit with GREAT instructions on how best to use the system.

I highly recommend using them for service anytime.


November 21, 2016 | Unregistered CommenterTim Matczak

What can I say, I am so pleased and excited about getting my Nu Tone intercom system back, after viewing your video and speaking to you I knew you were going to do a
professional and caring job on getting my intercom system back to life.
I was correct, you made the whole process from beginning to end very simple to understand and you were companioned to my felling's that I really wanted this to be repaired
professionally. I am more than pleased, I fell as I have made a friend. Good Job, thank you.........

October 7, 2016 | Unregistered CommenterErika Coolidge

Hi Chris,

Just an update, our unit is still working great, and we enjoy it. Thanks for servicing it and the taking the time to help.

Best, Jeff and Jen.

October 3, 2016 | Unregistered CommenterJeff

Your service of my IM4006 nutone intercom and a new doorbell button was great. I used the videos of removal of intercom, lubrication of of all the 9 room speaker units, replacement of the doorbell button, adjustment of doorbell volume. These are the best instructional videos I have ever seen anywhere for anything. It made each process simple. The lubricants you suggested for the room speaker units worked perfectly, better than when they were new! I congratulate you on filling a great need with such great service, parts and information, even responding to my email questions in an extremely timely fashion.

September 16, 2016 | Unregistered CommenterDavid Lannik

Hi Chris!!!

Just wanted to thank you again for taking time to call us. I can't remember the last time we had anyone go above and beyond like that for anything....made my whole evening...hope you have a great week!

Thanks again, Cathy and Dave

September 14, 2016 | Unregistered CommenterCathy and Dave


You are the only one I could find that was willing to repair a 48 year old Nutone Master Intercom unit. Not only did you do an excellent repair job but you kept your word as to its cost and delivery time. Your instruction on cleaning the speaker connections were clear and make a big difference in performance. In this day and age such honesty and reliability are hard to come by. It was a pleasure to deal with such an upstanding man. I wish you much continued success.

Dick S.

September 1, 2016 | Unregistered CommenterDick S.

Hello Chris,
We sent you our 27 -year old NuTone 3003 Master intercom to be repaired, trusting that you would repair it and you made it like new again! The information you provided online and over the phone was very helpful. Everything was handled efficiently and professionally, in a timely manner. It was a pleasure doing business with you and Cindy. We will definitely recommend your business.
Thanks again

August 25, 2016 | Unregistered CommenterAlice Garcia

Hi Chris and Cindy,

Just wanting to follow-up to say you are indeed a life saver. Nice touch on the pack of life saver when you mailed the master station back. Once I returned from my trip, I re-installed the unit that my husband Doug had brought to you for that one wire, and everything works like a charm. AM radio isn’t so good but reception everywhere with AM is failing these days. Everything is working wonderfully.

Thank you also for the pink page that explains with volume settings – this is NOT in the manual which I do have!

Once again thanks for much for your help and patience during the trouble shooting process and finally for fixing our master station!

Susan and Doug Churchill

August 22, 2016 | Unregistered CommenterSusan and Doug

I recently had a Nutone IM5006 and IS515/IS518 speakers repaired by Chris @ Northside Service Co. The system had not functioned in over 10 years. Due to his expertise, I now have a working system. He was courteous, helpful, and quick to repair my system. I can recommend Chris to anyone looking to repair their Nutone equipment.

July 21, 2016 | Unregistered CommenterAlan Kisza

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