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Furnace not firing after Honeywell motorized valve installed. All wiring appears to be correct. All other heat zones with motorized valves functioning.

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  • Contributor
  • 69 Answers

End switch on new zone valve is not making (not closing)

Posted on Nov 20, 2013

6 Suggested Answers

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Posted on Jan 02, 2017

  • 27 Answers

SOURCE: Zone valve on my Burnham gas furnace keeps running

ASSUMING THAT YOU HAVE HOT WATER SYSTEM,IT IS TIME TO THINK ABOUT REPLACING THE ZONE VALVE.IF YOU DISCONNECT THE ZONE VALVE,THAT AREA WILL NOT GET
ANY HEAT.IF YOU CAN GET THROUGH REST OF THE HEATING SEASON WITHOUT IT,TURN OFF THE POWER TO THE ENTIRE SYSTEM.THEN DISCONNECT THE POWER SUPPLY TO JUST THAT VALVE.BE CAREFUL TO PUT WIRE NUTS ON ANY EXPOSED BARE WIRES.YOU CAN THEN RESTORE POWER TO THE MAIN SYSTEM.

Posted on Mar 07, 2009

  • 10865 Answers

SOURCE: 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

Posted on Dec 12, 2009

  • 2461 Answers

SOURCE: replace honeywell V8034F1051 zone valve

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!"

SOURCE: I have a Weil-McLain hot

Hello.Prob#1 valve has a bad END SWITCH,change the power head,thad brings the circ on when open.Prob#2 try manual overide lever.iS IT TIGHT OR SMOOTH?DOES IT JUMP/SNAP?motor very hot? all bad signs.Change that power head too.The transformers are OK because 1 trans can only run 3 valves max.

Posted on Sep 21, 2010

angelo_mlc
  • 1035 Answers

SOURCE: No heat in the zone when thermostat asks for it..

Hi. You might need to change the valves of your unit. here are few tips on how the valve looks like. i included also the manual for the your unit.

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

2f56449.jpg
This is the F valve


96a3f1d.jpg
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.

You can look for the manual by clicking here. These link came from my fellow expert.


Have a good one!!

Posted on Oct 16, 2010

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1 Answer

How do I connect a 24v damper motor with 6 colored wires red white yellow green blue black to NO COM NC terminals.


Choose two colors of the thermostat wire, and connect them to the NO and COM and connect them to the zone control board leads for the zone intended. Almost all zone valves spring return open when deenergized. So ensure the zone valve is open with the system is off. At the base of zone valve there is a set screw that needs to engage the damper valve shaft in the open position with the motor in the spring release position. Most zone valve are 90 degree moment from full open to full shut. If you have a Carrier zone valve, they go full open to full shut in 45 degrees of motion. Your open stop need to be set so the valve stops in the full stop position.
To help understand the operation of a zone system, say you have 2 zone system and zone 1 thermostat initiates a heat or cool demand. Zone 2 valves energizes and shuts and zone 1 stays open and allow air to heat/ cool zone 1. If zone 2 thermostat simultaniously initiates the same heat/cool demand, the zone 2 valve opens and both zone heat/cool. When either thermostat is satisfied the opposite zone valve closes and when both thermostat are satisfied both zone valves open.
Hope this helps you understand zone operation. The same works for higher multizone systems.

Jul 27, 2014 | Honeywell Motorized Small Rectangular Hvac...

Tip

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

0577526.jpg
This is the F valve

2fdce4e.jpg

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.

http://www.fixya.com/support/r3894275-manual_honeywell_find_honeywell_manuals

on Jan 16, 2010 | Heating & Cooling

1 Answer

Honeywell CT3600 does not turn off heat


Its hard to say where its getting power from. It should be a normally closed two wire valve, so power must be fed from the tstat only? Not real sure how it's wired. You could try a round of MUSICAL THERMOSTATS? That would answer your question as long as its played properly.

Mar 25, 2017 | Honeywell CT3600 7 Day Electronic...

1 Answer

I have a Weil-McLain hot water boiler for baseboard heat. The system has one circulator pump. The system has 5 zones - 3 work fine and two are not working. All the zone valves and thermostats are...


Hello.Prob#1 valve has a bad END SWITCH,change the power head,thad brings the circ on when open.Prob#2 try manual overide lever.iS IT TIGHT OR SMOOTH?DOES IT JUMP/SNAP?motor very hot? all bad signs.Change that power head too.The transformers are OK because 1 trans can only run 3 valves max.

Sep 20, 2010 | Honeywell (CT62B1015) Baseboard Heater

2 Answers

Replacing WHITE-RODGERS manual thermostat with 3 wires ( red, white, blue and installing Honeywell electronic thermostat RTH110B, how do I connect it? The heating is not central, baseboard heating.


I have only seen one Honeywell thermostat that would work with a 3-wire heating system.

I would replace it with a White-Rodgers 1F80-0471. They are about $100, but they are a good thermostat, and they work well with the 3-wire zone valves.

Most other thermostats have the "Y" terminal that you need, but do not control the zone valve correctly.

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Jan 30, 2010 | Honeywell Electronic Programmable...

1 Answer

Where does the W2 wire go?


w2 wire is second stage heat does your furnace have two stages.look at gas valve it would have 2 valves/ sol w2 will go to w2 on stat. if a single stage furnace w2 is not used

Jan 25, 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

How do i install a zone valve in my hot water heater. I need the schematic from boiler controller to the valve. if I tie the first floor to one valve , the rooms (2) will be on the last section before the...


The two zones have seperate supply and returns, correct? If not zoning will not be possible without piping the system in that way. Assuming the piping is correct, for two zones, you will need two zone valves, one cut into each zone. The wiring will vary, but for a 3 wire zone valve, (Taco), power from the transfomer goes through the thermostat, into terminal 1 on the Zone Valve, Terminal 2 on the zone valve goes back to the transformer, (24v common), and also to one "T" terminal on the aquastat (boiler control), and Terminal 3 on the zone valve goes to the other "T" terminal on the aquastat.

For a Honeywell, or other motorized Zone Valve, power again goes from the transformer, through the thermostat and into one side of the motor contacts/wires (depending on brand), the other motor wire goes back to the transformer, (24v common) Then the two end switch contact/wires go back to the T T terminals on the aquastat.

If you are using motorized zone valves, and only 2 of them, the transformer in the aquastat will be strong enough to power them.

Hope this helps

Jul 04, 2009 | Kenmore 75944 Gas Dryer

1 Answer

Zone valve on my Burnham gas furnace keeps running hot continually. How do I manually shut it off? All wires look good and are connected. The other 2 zones work fine.


ASSUMING THAT YOU HAVE HOT WATER SYSTEM,IT IS TIME TO THINK ABOUT REPLACING THE ZONE VALVE.IF YOU DISCONNECT THE ZONE VALVE,THAT AREA WILL NOT GET
ANY HEAT.IF YOU CAN GET THROUGH REST OF THE HEATING SEASON WITHOUT IT,TURN OFF THE POWER TO THE ENTIRE SYSTEM.THEN DISCONNECT THE POWER SUPPLY TO JUST THAT VALVE.BE CAREFUL TO PUT WIRE NUTS ON ANY EXPOSED BARE WIRES.YOU CAN THEN RESTORE POWER TO THE MAIN SYSTEM.

Mar 07, 2009 | Honeywell Programmable Thermostat Heater

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

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