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Replace honeywell V8034F1051 zone valve

I want to replace honeywell V8043F1051 zone valve that controls hot water.
I do not want to replace the whole valve with plumbing and all involved or replace the motor or switch only. If I order a new valve, It seems easier and less costly to buy the whole valve than just the replacement head, can I easily remove the part (replacement head) from the valve, unscrew the defective ''head'' from the valve I have and install the new ''head?'' The valve has been in place since 1998 - might it need some lubricant to get it off?

To my surprise, by tracing the wiring, I find that the superstor water tank is wired and powered through the boiler. When I turn off the boiler, the motor of the valve goes cold. I appreciate your input.

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  • Monika Schrauder Nov 24, 2010

    Clarifying my previous posting:
    I have a TACO ZVZ404 4-zone control unit which connects 3 heating zone valves and the Honeywell V8043F1051 zone valve for hot water. I recently replaced the head of the V8043F1051 zone valve because it had stopped working and the new head worked for about 3 months.

    I am not sure if the problem has anything to do with another problem that I have with heating zone valve units that has also developed. The lights on the TACO ZVZ404 4-zone control unit when the heating zone valves are calling for the boiler to come on are orange and red (each heating zone). I noticed that the Honeywell V8043F1051 zone valve for hot water shows only one, the orange, light when calling for the boiler to torn on which it does NOT. I also noticed that two of the heating zone valves when calling for the boiler to come on work only intermittently , one (a TACO heating zone valve installed 6 yrs ago, being the newest one) always turns to boiler on. Could there be a problem with the TACO ZVZ404 4-zone control unit ALSO?

    Because I returned the Honeywell V8043F1051 heating zone valve for being defective, I temporarily wired in the old V8043F1051 zone valve I still had. Having taken the wires off on the top two connections all at once, I am not sure if I reconnected them correctly. Should they be white - red (from left to right) on the top as well as white - red which they are on the bottom?
    I want to make sure I reconnect the wires on the replacement unit I ordered correctly.

    So - the questions:
    Could I have a problem with the TACO ZVZ404 4-zone control unit?
    Should the Honeywell V8043F1051 zone valve for hot water show two lights on ZVZ404 when calling for the boiler to come on?
    Did I reconnect the wires correctly on the V8043F1051 hot water zone valve?
    Thank you. ms01007

  • Monika Schrauder Nov 24, 2010

    Thank you paulcarew; striclty re the Honeywell V8043F1051 heating zone valve f
    Should the wires be white - red (from left to right) on the top wire connectors as well as they are on the botttom white - red (from left to right)? I want to make sure I reconnect the wires on the replacement unit I ordered correctly. thanks.

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  • Honeywell Master
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Why not just but the head or come to that the motor in side , cheaper option

Posted on Jul 13, 2010

Testimonial: "Prompted by your suggestion, I bought only the replacement head for the honeywell valve, saved me money and was so easy to install. Thanks!"

  • 2 more comments 
  • Monika Schrauder Nov 20, 2010

    Honeywell V8034F1051 zone valve replacement head only worked for 3 months - There is only one light (orange) that shows on the taco control valve while the heating zone valves display two (orange and red) when calling for the boiler to come on.

    I am returning the unit in the meantime I am not sure if I switched the wire connection to the old valve I am using as a wiring place holder. The bottom two wires are white red (left to right) from directly transferring each of the wires from newer to the old unit BUT when I reconnected the top wires which I had both taken off at once instead of one at a time that I got confused if they also go white red (left to right) to connect to another (heating zone) valve. That is how I currently reconnected them. Just wondering if I mixed them up because when I replace the V8034F1051 I want to make sure I connect the wires right.

    Strange thing that has started to happen, not only did the old and now the new valve (after 3 months) stop working, one of the heating zone valves does not work any more either, and sometimes another doesn't either. The are connected to a 4 zone control valve unit TACO ZVC404. The lights go on (orange and red) from the heating valve, it opens, but does not turn on the boiler. Could it be the 4 zone control valve that is the problem?

    Please let me know 1. if I reconnected the top 2 wires correctly
    2. how to check if the 4 zone control valve is causing the problems.
    Thanks. ms01007

  • paulcarew Nov 23, 2010

    sorry you lost me on this a bit ?

  • paulcarew Nov 24, 2010

    Sorry i have never worked on a taco unit I could not tell you anything about it or how it works I cannot give your any info on this that might help infact i would not give you bad advice that would cost you money ,that would be my mistake

  • Monika Schrauder Nov 24, 2010

    Thanks for your input.
    Strictly re the Honeywell V8034F1051 hot water valve.
    I am returning the defective unit iI had installed that only worked for 3 months and in the meantime I am not sure if I switched the wire connection to the old valve I am using as a wiring place holder. The bottom two wires are white red (left to right) from directly transferring each of the wires from newer to the old unit BUT when I reconnected the top wires which I had both taken off at once instead of one at a time that I got confused if they also go white red (left to right) to connect to another (heating zone) valve. That is how I currently reconnected them. Just wondering if I mixed them up because when I replace the V8034F1051 I want to make sure I connect the wires right.

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