Help with the Honeywell ST6400S

[gasacs]

Not without the full manufacturers instructions. I would go back to the shop and get them to obtain a copy..

 

[jayxx]

il try my luck by going back there.

i noticed a few guys had info on how to enter the installer mode on here

 

[thulsa18]

The engineer is coming next week wednesday but i need hot water before then. Could anyone please send me details on how to reset it. My email is ************

 

[capslock]

I wonder if anybody can help I to have the same problem and need to reset the service warning. System bought on ebay and not an installer so honeywell don't want to know any body send me the info. I hope somebody can. Thanks.

 

[programmerstress2]

I also have a Honeywell ST6400S. (As with other people in the thread, I'm a homeowner and our heating system was installed a year ago. Apparently it has gone into the "Off - Service due" mode because the programmer is designed for landlords.) The service is going to happen in 2 weeks, but it's cold and I have a 3 month old daughter, so need the heating on for more than an hour at a time.

I'd be very grateful if someone could tell me how to reset it.

Thanks,

Dan

 

[programmerstress2]

Does anyone have Document EN0R8542 for the Honeywell ST6400S programmer?

The one that tells you the security key sequence that gives access to the Installer Mode by using the buttons and sliders on the controller of the ST6400S?

Or alternatively, the sequence alone would be much appreciated.

(See my earlier post above)

Thanks,
Dan

 

[Daniele70]

Hi,

Same problem, I also need to resetting a ST6400S. Can someone email details please ********* ?

Thank you,

Daniele

 

[capslock]

Hi I also have the same problem it was installed by an electrician after my old one broke if anyone has the info my e-mail is ******* thanks

 

[dixie237]

hello,
can someone add me to the list of people that need the reset instructions
for the st6400s
cheers

 

[kevplumb]

e mail in your profile might be an idea

 

[theheatinghelper]

ive just been out to someones st6400s @7.30 tonight ..... honeywell call center shut @5.15 i did try a few plus and minus together etc but no luck would appreciate the code so could go out tonight and get heating on fully.... i did manage a 1 hour heating and hotwater boost << gas safe registered email in profile ... thanks so much

 

[Honeywell1]

Send an e-mail to [email protected]. Please be aware, the EN0R8542 document is ONLY available for authorised installers. Hope this helps.