Question about Honeywell Programmable Thermostat Heater

1 Answer

Honeywell junction Box and QE2 Programmer

Hi,

I really need your help.

I have 2 Tower motorized valve; fully pumped boiler and when calling for hot water only, the valve does not open at all; I know the valve is not faulty as I have replaced it once. The Central Heating side is perfect.
I have connected the Towerchron QE2 to a Honeywell Sundial Plan Wiring Centre Part number 42005748-001.

Without going into too much details, I connected as follow

Towerchron QE2 Honeywell Programmer Block

Live Brown L
Neutral Blue N
Earth Gre/Yel E
CH On(T4) Gray CH On (Next to E)
HW On(T3) Black HW On

I hope you are able to help.

Many Thanks and Regards
Mehdi

Posted by on

  • Mehdi_1971 May 15, 2008

    Towerchron Honeywell Programmer Block

    Live Brown L

    Neutral Blue N

    Earth Gre/Yel E

    CH On(T4) Gray CH On (Next to E)

    HW On(T3) Black HW On

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Honeywell Master
  • 1,899 Answers

Hi check the wiring to the cylinder stat is there power to it then is it going to the valve

Posted on Feb 18, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Control box beside boiler in garage is flashing


Try contacting Honeywell directly for help resolving this issue.

Jan 02, 2014 | Honeywell Programmable Thermostat Heater

1 Answer

Hi, I have a drayton lp522 programmer with a


go to boiler Disconnect red line and jump out White and red line at boiler if the fires reconnect red line and replace thermostat

Sep 23, 2013 | Thermostats

1 Answer

I need programming info for an Altech model ALTHC001 central heating and hot water programmer


Can you please tell me how to set clock for central heating the clock is an althc001 had power switch off and when it was turn back on the clock is not working when the boiler is calling for heat and the same with the heating can you help

Oct 07, 2011 | Honeywell Programmable Thermostat Heater

1 Answer

ST6400C programmer, heating switched off. Switch hot water on only, tank full of hot water but pump runs and radiators get hot. Wall stat is set at zero. When programmer is touched and the flap dropped to...


Have had a lot of these programmers with this fault.Integral fault with electronics.Programmer will need to be replace as unrepairable.You should be able to find a straight replacement version from your heating supplier.

May 11, 2011 | Honeywell Programmable Thermostat Heater

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 have a red and a white wire but the heater wont


It sounds like you have at least 2 zones in your system. If this is a normal hot water boiler system with zone valves. When you have your thermostat call for heat it closes the 24 volt circuit that then energizes the motorized zone valve for that thermostat. In that motorized zone valve there is an end switch that will close and complete the circuit to the boiler. Zone valves when they start to clog up with mineralization will not allow the motor to go far enough to close the end switch, so then the boiler and circulating pump will not come on. If this is the case then you need to have the zone valve replaced.
Also make sure your wires at the thermostat are connected correctly. One thing you could also check at the thermostat to make sure it works or not is to jumper the 2 wires and see if your system starts up or not. If the system starts up then the thermostat or its subbase is defective. Hope I was of help to you!! Good luck!!

Nov 29, 2009 | Honeywell Programmable Thermostat Heater

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

1 Answer

No hot water honeywell st6400c


HW valve was stuck in the open posiion and the micro-switch was not working so thats why boiler and pump were not starting. Bled system to below the level of the valve to be changed, and replaced valve with a drayton ( easy quick change of valve head if needed no screws )

Sep 07, 2008 | Honeywell Programmable Thermostat Heater

1 Answer

Cant turn heating off


do you have a separate or built in programmer? if itis separate ISOLATE MAINS undo the screws on the bottom of programmr and checkthat ther are no loose wires ( make a note of where they go for future ref. ). If wires OK check that the valves are working switchoff HW and Heating switch one on at a time and check that each valve is opening and closing and that the boiler and pump fires up ( it could b the micro-switch in the valve is broke! )

Sep 06, 2008 | Honeywell Programmable Thermostat Heater

1 Answer

Honeywell ST6400C programmer


Hi yes sound like it not working on hot water only it would check ou the wiring on this side

Jul 25, 2008 | Honeywell Programmable Thermostat Heater

Not finding what you are looking for?
Thermostats Logo

441 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honeywell Thermostats Experts

Bill Long

Level 3 Expert

577 Answers

paulcarew

Level 3 Expert

1898 Answers

Brandon Berry
Brandon Berry

Level 2 Expert

407 Answers

Are you a Honeywell Thermostat Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...