Question about Honeywell Heating & Cooling

1 Answer

I have just replaced the motor on my Honeywell V4043H valve but when I have wired it up there is not hot water coming to the radiators. Does it matter which wire from the motor connects with the other wires. There are a blue and brown wire - but as the motor wires are the same orange colour there is no indication which connects to which

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that got 5 achievements.


    Visited the website for 3 consecutive days.

    New Friend:

    An expert that has 1 follower.

  • Contributor
  • 37 Answers

Im assuming that--
you waited long enough for the valve to open
you used the manual lever to check for flow
same thermostat
boiler isn't off on reset
theres power to the boiler
Do you hear the valve energize? If not--
The orange wires are interchangeable so it dosnt matter. the zone valve is normally closed so it wont open unless it gets power from a call for heat. Follow the blue and brown wires down to the control and make sure they aren't cracked. Check for water in control panel. Pull relay and look for small soot mark inside (blown).If wires have been spliced at any point remove wire nuts restrip wire and use NEW wire nuts to reconnect.At control remove wires one at a time clip and strip and reconnect. make sure the wire is wrapped around screw and tighten. If valve still isn't opening check the corresponding TT terminal connections clip and strip and reconnect.Still no water? With wires removed jump the TT terminals. If it powers after at least 15 sec then it may be either you thermostat or the wire going to it.
It could also be on the water side. If the plunger inside the valve body is stuck closed or clogged you can either isolate and drain the zone, remove the brass plug and dig around or buy a zone valve WITH the brass body. isolate and drain the zone, sweat off the old one and sweat on a new one. I know...good times :-{

Posted on Feb 24, 2019


6 Suggested Answers

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

TBlessed 1
  • 61 Answers

SOURCE: ceiling fan wires

is the old fixture still installed?

Posted on Oct 17, 2008

  • 34 Answers

SOURCE: I've tried to install a

the colors aren't all that important.  make sure the letters on the thermostat and the letters on the furnace control board have the same wire connected.  that's all you need to do.

Posted on Dec 06, 2008

  • 1902 Answers

SOURCE: heat will not shut off

Take white off of Aux, and attach it to L

Posted on Feb 16, 2009

  • 144 Answers

SOURCE: I have Bryant HRV and the motor has failed.

Wire nut and tape the blue and red wires they are not used.

Posted on Mar 06, 2009

  • 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

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Need wiring schematic for honeywell motorized valve model V8043E1012 for hot water furnace wiring is on page 5

Mar 05, 2011 | Honeywell Heating & Cooling

1 Answer

I have honeywell v4073a 22 m valve on my central heating and need to get the head off as the valve appears to be sticking and is not sending hot water to the radiators. How do I remove it to check if it...

If you remove the cover of the valve ,you should see some screws that hold the motor head to the valve. you can loosen these screw and the head will come off of the valve body without leaking fluid. you then can try to pivot the valve stem and see if it is sticking or if the the valve motor needs to be replaced. reverse process to install. hope this helps.

Dec 21, 2010 | Heating & Cooling

1 Answer

My Honeywell ST 6400C won't heat the hot water the light comes on but pump doesn't run or boiler fire. But does work on C/Heating.I can get hot water only by running the C/H and manually opening the hot...

it sounds like the motor in the motorised valve is not working on some models you can just change the head /motor , check cylinderstat (hot water stat) is working

Dec 14, 2010 | Honeywell Heating & Cooling

1 Answer

Replace honeywell V8034F1051 zone valve

why not just but the head or come to that the motor in side , cheaper option

Jul 12, 2010 | Honeywell Heating & Cooling

3 Answers

Humidifier will not turn on (no fan, no water flow)
A breakdown diagram of parts etc above.
Shows you the HE360A.
To me it sounds like it is wired incorrectly, the solenoid should NOT get too hot at all. The PDF above shows wiring data.

Apr 03, 2010 | Honeywell HE360A1027 Whole House...

1 Answer

My Honeywell 3 port valve in my CH/hot water systemis not working

Hi two things that go wrong inside the valve gets clogged up and blocks up in side, the valve in side and get worn sorry 3 things the motor on the top burns out , if you remove the top cover you will see a small motor with 2 orange wires on it you can remove the motor with 1 screw and see if its turning

Feb 08, 2010 | Honeywell Electronic Programmable...

1 Answer

Honeywell ST6400C programmer doesn't switch off

Since you have three on/off timing modes could there be an overlap in the times?
The wires in the unit might be crossed. (don't always assume the contractor who wired maintained the correct colors , I have a friend who blew out a heating pipe because when a replacement motor valve was installed it was never wired right and the plumber assumed the colors were correct so no overtemp shutoff created steam in PVC pipes, OPPS)
There fore maybe one is still coming on. Do you have more than one heating zone? IF so see below

I guess the main question is why manually turn it off? why not use the program.

I will assume your heat is know as forced hot water heating. My house is multizoned however when the zone calling for heat turns off (zone valve closes) I installed a bypass valve in the lowest zone in the house, and reduced the circulator low shut off temp to 130 F which means even though the heat isn't on my circulator will continue to run dumping this excess heat in the lowest part of house to rise through house. (the spring loaded water valve allows the heated water to flow into this zone )We do have two thermistats. And even though the lowest one is not calling for heat the radiators are hot when the excess is dumped into this zone. So investigate and see if your system might be similar. (multizone).

Investigate your wiring, reprogram, replace any battery backup.

Dec 18, 2007 | Honeywell Programmable Thermostat Heater

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

62 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honeywell Heating & Cooling Experts

Bill Long

Level 3 Expert

603 Answers

Paul Carew

Level 3 Expert

3417 Answers

Cindy Wells

Level 3 Expert

5874 Answers

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

Answer questions

Manuals & User Guides