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How can I repair a Honeywell V8043E 1020 Zone Valve?

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Replace'll need to do that in a year if you get it to run at all by monkeying with it.

Posted on Nov 23, 2008


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All of the sudden, my Honeywell zone valve opens all the time even with thermostat lowered.

Have you checked to see if you are getting a power call from the thermostat to the valve? Possible Zone valve stuck open. Pull wire off valve to see if valve closes if not then valve is bad. If valve closes then you need to check to see if you have a wire shorted over from power supplied from stat> If supply wire to valve from stat is making contact with power wire supplied to stat this will keep valve open all the time.

Dec 17, 2014 | Honeywell Heating & Cooling


Honeywell V8043E and V8043F Zone Valve

You need a new Honeywell Zone Valve and you are confused by the different numbers of the valves. Let me explain a bit to help you sort through the differences.

The first thing is the V8043 number. This number is the same for the straight through two way valve body configurations. The next letter for most heating system zone valves is the one that is confusing sometimes. Usually it will be an E or a F. There are other Letters but they are not nearly as common for home heating.

This is the E valve

This is the F valve


The thing to remember here is that the E letter tells you that the zone valve has the 4 - 18” wires coming out of the motor. And the F letter tells you that the motor has the 5 terminal board on it. They can be interchanges but if you have one type already installed and you go to replace it you will have to do some figuring to know how to hookup the motor correctly. If you replace your valve with the same letter valve you will just be able to hook it up again as it was.

Then, as far as the last four numbers go, they just tell you what size pipe the valve is for.
If you need to replace the zone valve motor you can check the pricing for a replacement motor or complete head, but I have found that many times the best pricing will be to buy the whole valve and then just take the head off of the new valve and switch it with the old one.

on Jan 16, 2010 | Heating & Cooling

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Wiring a Honeywell V8043E for two zones

Honeywell posts pdf manuals.
Google seArch Honeywell V8043E .pdf
Include .pdf in search parameter to find manual with wiring diagrams.

Oct 26, 2012 | Honeywell V8043E1012 Zone Valve 3/4 Sweat,...

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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

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Valve replaced , but 1 zone out of 3 no heat when

Hello. Each zone in you home has one thermostat controlling one zone valve. Generally, when a thermostat is calling for heat the zone valve opens and the circulating pump comes on to move the water around that loop. If your other two zones are both working as they should and you now have a new zone valve on the third loop I would suspect that the thermostat is faulty. Regards, Joe

Dec 12, 2009 | Honeywell Programmable Thermostat Heater

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