Question about Honeywell Programmable Thermostat Heater

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No display on honeywell st699 even after i replaced with new one

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  • 2 Answers

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Posted on Jan 02, 2017

  • 17 Answers

SOURCE: replacing Honeywell heating progrmmer

yep the wires will hook up to the same designations, just write down what color was connected where. You will need to set the thermostat up for your particular situation...gas, electric, heat pump, ect. The installation maunel is very clear on this aspect so you should not have a problem.

Posted on Nov 14, 2008

  • 16 Answers

SOURCE: cannot get central heating working,for honeywell ST6400 programme

with y plan 3 connections on programmer HW on HW off CH on HW on to cylinder stat then HW call to Orange on Mvalve to power boiler and pump HW off to grey wire on Mvalve to close hot water CH to room stat common then heating call to white on Mvalve

Posted on Aug 17, 2009

  • 1 Answer

SOURCE: how do i remove my st699 honeywell programmer from

Because there are no apparent screws to remove the front of this unit it can be very confusing if you have not done it before. Underneath and to the right hand side you will find a small notch in the plastic, it can be difficult to see when the unit is on the wall, using a small terminal screwdriver push upwards on the plastic tab which locks the front in place and with a slightly larger flat bladed screwdriver prise the front off bottom first then the two locking tabs at the top.
You will probably find that the back case is fastened to the wall with two screws.
Replacement is simply a matter of snapping the front back into the case.

Posted on Sep 22, 2009

milten1
  • 1304 Answers

SOURCE: can I upgrade my honeywell st699 programmer to a

it should be a direct replacement

Posted on Oct 05, 2009

  • 80 Answers

SOURCE: can I upgrade my honeywell st699 programmer to a

Yes.

Posted on Oct 07, 2009

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1 Answer

Can you replace a danfoss TP9 with a honeywell ST699


I believe the TP9 is a programmable thermostat.

While it appears the ST699 is a timer that connects to a thermostat.

So yes, they both control 230Volt boiler-and-pump. But there are differences.
Google search each item and include .pdf in search parameter to find product manual for each, and then compare wiring differences.

Nov 19, 2012 | Honeywell Hardware & Accessories

1 Answer

Replacing an ST699 with a ST9400C following repl wiring diagram, but programmer does not come on. Is the diagram incorrect? Wiring colours do not follow any of the plans. Syst has room stat, cyl stat,...


Disregard wire colors. Instead wire by terminal designation. In other words :
Wire on "R" Terminal on old thermostat to "R" Terminal on new thermostat no matter the color.

Jun 14, 2011 | Honeywell Heating & Cooling

1 Answer

Hi I have a Honeywell st699 programmer for central heating and hot water. The only problem that we have is that we can not change the time on the clock. This means that we cannot set any programmes. Is it...


HONEYWELL WEBSITE:
Go to honeywell.com
Under red welcome sign
Bottom red highlighted box literature/image search
Type in thermostat model number
Click on arrow to right
Then click on the PDF files owners manual / installation instructions
If you can’t find what you want, the bottom left and bottom of web
Page, they have homeowners assistance and Home products to get the help you need.

Aug 17, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

I've just moved into an oldish house and there is a honeywell heating/water controller installed. its quite old and i cannot find any identifying marks on it. It looks like a st699, 2 on/off per day. I...


If you go to your local home depot, and get a new thermostat, it will come with different diagrams for wiring in the instructions that are pretty easy to understand. I hope this helps.

Nov 04, 2009 | Honeywell Electronic Programmable...

1 Answer

I have a Honeywell ST699. Is about a year and a half old. It now repeatedly resets itself to midnight, then goes on for about 3-4 hours, before resetting itself. What is wrong - do I need to replace it?


Check to make sure the built in battery pack is working (holds a charge). Without a functioning battery pack, some timers will not work properly and will only operate for a brief time before resetting itself when the battery pack discharges.

Usually any timer that utilizes a backup battery to retain the program settings will require replacing the batteries or battery pack annually.

You can also check the Honeywell site for more details on your specific model number.

http://europe.hbc.honeywell.com/products/pdf/en0r8439uk07r0101.pdf

Jul 28, 2009 | Honeywell Water Heaters

1 Answer

Cannot get central heating working,for honeywell ST6400 programme


with y plan 3 connections on programmer HW on HW off CH on HW on to cylinder stat then HW call to Orange on Mvalve to power boiler and pump HW off to grey wire on Mvalve to close hot water CH to room stat common then heating call to white on Mvalve

Jun 13, 2009 | Honeywell Programmable Thermostat Heater

2 Answers

Replacing Honeywell heating progrmmer


yep the wires will hook up to the same designations, just write down what color was connected where. You will need to set the thermostat up for your particular situation...gas, electric, heat pump, ect. The installation maunel is very clear on this aspect so you should not have a problem.

Oct 30, 2008 | Honeywell Programmable Thermostat Heater

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