Help! Change Wirsbo t-stat back to Fahrenheit!

Gene Davis_3

We have the common two-button Wirsbo t-stats, one per zone, and our father-in-law fiddled with one, and now it is reading Celsius.

Uponor's site won't yield me a set of instructions, and so I am taking my problem here, hoping someone can walk me through the sequence.

I'll bet it begins with pressing both buttons and holding for some number of seconds, right?

What happens next?

EricAune

Remove from mounting plate

Start by removing the front portion from the mounting platform.



On the back side you will find a small black button.



Press it, the display will change each time you press the button.



(not sure of the sequence) you can change the upper setting, lower setting and the *F or *C



Use the arrows to make desired changes.



When left alone the program mode will stop unless the black button is pushed again.



Snap back onto the mounting plate.



Hope this helps.

JK_3

is the mode button on front ?

I hope the link works and its the one your looking for. If so download or print it for future use.



[url=http://www.uponor-usa.com/~/media/Files/Product%20Documents/Climate%20Control%20Network%20Thermostat%20User%20Manual.aspx?sc_lang=en]http://www.uponor-usa.com/~/media/Files/Product%20Documents/Climate%20Control%20Network%20Thermostat%20User%20Manual.aspx?sc_lang=en

Gene Davis_3

Thanks, but . . .

Our t-stat is a heating-only model, and looks like the picture, attached.

If I remove the front plate part, I am actually removing the whole thing from its wall-mount-plate which is the back half and is screwed to the wall.  The front part comes off complete with the printed circuit board and its wire connections.

All I can see is the printed circuit board, and there are no small black buttons to press.

Must I dismount the guts of the unit from the front plastic housing, by unscrewing the mounting screws?

This seems like radical surgery for such a common setting operation.

I tried to get the user instruction manual as a download from the Uponor site, but every time I attempted the download of the .pdf file, the site page froze up on me.

JK_3

model #

Do you have a model # ? Is this a radiant tstat?

Gene Davis_3

Radiant heating only model.

It is either an A3030101 or the A3030102.  It must be the two-wire one because the wire cluster coming through the wall has three wires, but only two are connected to the two screw-post terminals of the thermostat.

We had one of the t-stats replaced a couple years ago, and its two control buttons are gray.  This one that needs to go from deg-C to deg-F is one from the original installation nine years ago, and its buttons are colored, the upper one red, the lower one blue.

Ours is a radiant heat system.

JK_3

A 3030101

It is the A3030301. I can't find the online instructs either.  I should have a copy in my shop. I will look Monday and let you know.

Gene Davis_3

Discontinued?

Could this be why the Uponor site does not respond with a download of the user manual?

I found this "discontinued" notice at a website that was selling these units.

I'll keep my fingers crossed that someone can find me the answer, after the opening of the business week, tomorrow?  Or is tomorrow a plumbing and heating holiday?

EricAune

Gene

As I read your post that it is an older model it is all coming back to me.  The button I referred to is part of the new model.  Yours is discontinued, but it can be changed back.  The exact way is a foggy to me at best but you are right about depressing the two buttons.  Your best bet would be to talk with a Uponor tech. 



I wish it were a holiday for me, luckily I have a job to start tomorrow.  Good luck.

Gene Davis_3

Bump

Bump.  Anybody know about this?

Unknown

Anybody know about this?

Wow Gene,,,, Celsius isn`t that bad is-it?

As Canadians we had this forced down our throat  during the "Trudeau" era ,, an old-guy like me still has trouble comprehending it though. ;-)

Gene Davis_3

Interesting news from Uponor

I phoned a product specialist at Uponor this a.m. and discussed my issue with the A3030101 2-wire T-stat.



The product is still available and is under the same product number, but a running engineering change was made between when mine was new and now.



There is no way to reprogram the one I have to again read in degrees F.  It is unlikely that anything my father in law did made it jump to degrees C for its readout.  The likely cause was a power spike or outage blip.



I'll try to reset it by disconnecting the lines from the terminal screws, and reconnecting.  If that works, OK.  If not, I'll decide whether to live with it as-is, or just go and buy the newer model.

Gene Davis_3

The rest of the story

Well, I disconnected it from its two wires, counted to ten, and reconnected.



Bingo!



We're reading in Fahrenheit again!

Dave H_2

Special function button

here is where what we call the "Special Function Button"



If your thermostat does not have this button, then a power down may do the trick, if not, it may need to be replaced.



Hope this helps



Dave H

Happy

You Rock! You've saved me hundreds and hundreds of dollars!

Thank you so much for posting the photograph. A picture is worth a thousand words. Neither me nor my workmen, nor the company's manuals showed us where the Special Setting Button was. A circuit on a circuit board is not my idea of a button!



Now we can reduce minimum temperature from 59 degrees (set by the guys who installed all fifteen of the thermostats) to 45 degrees and quit heating an empty house when we're not home.



No frozen pipes, no floods and greatly reduced electric bills!



Thank you again!

Beth

cut2cure

Resetting 3030101 2-wire t-stat to F

You can either disconnect one of the wires, then reconnect...this resets to degrees F. Alternatively, I used a screwdriver to touch BOTH bare sections of wire simultaneously. Worked perfectly. Immediate reset.