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Outdoor reset

nate379
nate379 Member Posts: 98
edited September 24 in Radiant Heating

Vesta VRC combi.

The book lists an outdoor reset plug in, but it seems the outdoor reset is as real as union tears. The few places that list it say it's not available.

Boiler is only ~3 years old so not like I'm trying to find parts for a dinosaur.

Vesta calls it an outdoor temperature sensor, I think.

Part number I have is 2081140.

Any idea where I can buy this? I've not had any success.

Have been adjusting the temp manually, but it's tough staying on top of it so it's not pouring too much heat to the slab when it's 45* like now, but might be 25* next week.

It's not exactly a huge deal, just end up with it pushing close to 75* during the day when the thermostat is set to 68. Have been running it around 85-90* for late spring, summer and early fall, then kicking it up to around 130* in winter.

I'm not sure if it’s unique to Vesta or others would work. Like one for a Navien is around $60 and easy to find.

Comments

  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 11,091
    edited September 24

    Most of the temperature sensors will use a thermister that changes resistance based on the temperature. I would try to

    1. Contact Tech support at VESTA in Texas Screenshot 2025-09-24 at 7.28.08 PM.png
    2. If that does not work for you, then try a generic tthermistor like this one:

    https://www.supplyhouse.com/Siemens-QAC2030-Outdoor-Temperature-Sensor-NTC-10K-Ohm-Type-2

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?

  • GGross
    GGross Member Posts: 1,617

    there is a customer service number on their website and a locator tool to find reps and distributors

  • GGross
    GGross Member Posts: 1,617

    I don't stock these but I have contacts with the rep in my state I can ask if they know if a standard 10k outdoor sensor from tekmar will work

    nate379
  • 109A_5
    109A_5 Member Posts: 2,788

    Possibly find a current part number, from a newer boiler. Maybe the same sensor inside. I tried to look at some install manuals but was unable to down load them from their web site.

    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
  • GGross
    GGross Member Posts: 1,617

    Something weird might be happening with that company the rep here said they don't rep them any longer but they are still listed on the website. and the manuals don't seem to download. found an archived one on manualslib but they don't say what the sensor spec is. If vesta tech support can't tell you, and the parts are not available, and the spec is not even known….. I'm not sure what to say…. Other than I am glad I wasn't talked into stocking these by the rep, they were pushing pretty hard several years ago.

    Alan (California Radiant) Forbesnate379
  • GGross
    GGross Member Posts: 1,617
    edited September 25

    I just called vesta tech support and the guy told me they have them in stock and can ship them out overnight shipping so you might try calling them again! They also told me you could use a 3rd party one for what its worth i didnt ask for that part number i just told them I was trying to help someone locate a sensor for a VRC combi

    1-800-761-0053

    Alan (California Radiant) Forbes
  • nate379
    nate379 Member Posts: 98
    edited September 26

    Tried them and just going to voicemail for something hard to understand but sounds like like "**** or lussy aleverez"... maybe buccee like the gas station.

    They person I talked to before was a lady and the whole deal didn't make me feel confident when this unit fails on getting parts. Got the impression they just sold throwaway units.

    I didn't pick it, was part of my buying this place. Old unit was a Baxi and it failed after only 7 years. I likely would have picked a well known brand.l, provided it wasn't crazy more $%.

    Edit..... I guess **** is a swear... pussywillow.... without the willow. Wasn't it a 007 girl's name even?

    I'm not using it to be vulgar, just relaying the info in case it'd help anyone else in the future.

  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 11,091

    I often use 3 of the letter X in a row to indicate an unknown quantity or model number, and one of my comments was withheld for "Admin Review". They have a pretty good Porn filter built in to the site to stop spammers from overloading this site with garbage. I think it is a good thing. Now I use XYZ in lieu of three X in a row. So your descriptive personal noun, falls into a less restrictive term and just **** it out.

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?

  • pecmsg
    pecmsg Member Posts: 6,478

    most manufactures will not talk to the end user only contractors.
    they have enough issues dealing with those that should know what there doing.

  • nate379
    nate379 Member Posts: 98

    Dunno why would it would matter, my money is green too.

  • 109A_5
    109A_5 Member Posts: 2,788

    Some industries did, maybe still do, have paid tech support. Early in the call they get you CC number. In general dealing with the general public can be very time consuming.

    Your situation is a bit different, you seem to know exactly what you want, you just can't find it.

    For the money I would try @EdTheHeaterMan's supplyhouse.com solution posted above.

    Pictures like this give me the feeling they are the same part.

    image.png
    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
    nate379
  • Jamie Hall
    Jamie Hall Member Posts: 26,381

    At the risk of sounding really truly cynical, there is a very good reason that many manufacturers will only deal with known contractors, in trades which are licensed, licensed contractors. As @109A_5 noted up there, dealing with the general public can be very time consuming, and there is no easy way to determine whether a given individual is actually competent. Perhaps more to the point, in today's environment, a member of the general public is very apt to sue you if they do something unfortunate with the part you sold them, never mind the advice you gave them which they didn't follow. And that is not just expensive from the standpoint of the tech's time talking to you, but from the standpoint of the legal eagles…

    I am NOT a contractor or licensed anything — just a moderately capable do it yourselfer with decades of experience trying to make things work. If a given supplier has a policy of selling only to contractors or licensed people, so be it. That's their policy, and their ball game, and I will play by their rules.

    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • Kaos
    Kaos Member Posts: 727

    For the couple of bucks, I would buy the supplyhouse part. Even if the sensor reads a bit off, you can always just adjust the reset curve points to match actual reading.

  • nate379
    nate379 Member Posts: 98
    edited September 27

    Supply House wants $58 shipping, so it becomes a $75 part.

    Fine if it's correct, but that's a pricey gamble... that's a week of groceries!

    For whatever reason their shipping has always been beyond ridiculous. That sensor is truly like $15-20 to ship, that's not factoring in a commercial account with large discount.

    Like the place my brother works ships and receives literally tons a week. Their rates are less than 1/2 of the counter price.

  • nate379
    nate379 Member Posts: 98

    Have met plenty of "pros" that aren't at all. And I've had to fix lots of "pro" jobs.

    In any case, it seemed simple enough to order in the part, but then found the part exists, but doesn't.

    The place the boiler came from doesn't sell them anymore, said they had a falling out, almost seemed like Vesta was out of business, but they exist online, so not sure.

  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 11,091

    Amazon Prime sells this Outdoor Temperature Probe that is what is inside the Siemens part that SuppyHouse.com sells. Your wife may have Amazon delivering stuff all the time , so you may get free shipping.

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?

  • 109A_5
    109A_5 Member Posts: 2,788

    Check your PM.

    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System