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Vulcan freeloader 300 gas hot water unit

Has started to drip water from the base of the unit - it is discharging from a small tube and is approx 11 years old.

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Honey thermostat RTH6500WF IS BLANK SCREEN


Change the battery in your thermostat first. The next likely issue would be condensation not draining. I would bet your air handler is in your hot humid attic. That means you have a drip pan under it and likely a tube from the air handler leading to the out side to allow condensation to escape to the outside of your home. On that tube from the air handler, there is a float switch which tells the A/C system to shut off so condensation does not back up into your house and ruin your insulation or ceilings. That is likely why your thermostat goes blank. The tube that drains condensation from the air handler to the outside builds up a slimey substance over time (especially in high humidity) and that clogs your drain tube. Using a shop vac, either blow the tube out or suck it out. Manually reset the float (should be down). You can find the float in the tube simply because it "should be" the only thing on the tube that has wires coming from it. Reset your thermostat using the switch for your A/C in your fuse box.

Oct 16, 2014 | Honeywell VisionPro 8000 TH8110U1003...

1 Answer

Drayton LP522 Heating & Hot Water Programmer


Mine is a different brand but looks similar if yours has a drop down panel which you open to set the times and to alter for winter summer in this panel you will see a very small hole Take a ballpoint and insert in the hole and press this is a reset button that the electrician told me about when mine went wrong it is not marked but it is a tiny button inset in the hole

Apr 12, 2014 | Thermostats

1 Answer

Hot water not going, wanting to know how to turn it back on?


You have a real good description of your thermostat--
I wonder why you suspect the thermostat to be causing your 'No Hot Water' problem?

First of all, I have to be sure I understand your real problem--
When you say you want to 'turn the Hot Water back on', (It is 'Not going')
Do you mean you want a boiler (maybe in the basement?) -- or maybe a zone valve in a Hot Water, Baseboard heating system-- to be heating your house/ room/ apartment?

I would suppose, if you have the thermostat set higher than the room temperature, that it should be giving a 'call' to the boiler (or Baseboard Hot Water Heater..) to ignite a fire, and heat the waer, and then heat your room, or house.

So-- Could the problem be in the Device heating the Hot Water?

Please tell us more about your heating system-- what type of fuel, -- What happens when you lower the Thermostat, and then raise it-- What used to happen, and what does NOT now happen, etc.

Tell us more clues-- maybe we can help remotely like this-

Mack B

Jan 26, 2011 | Emerson Fans 300 Heating & Cooling...

1 Answer

Furnace cuts off before reaching set temp.


You can make sure it is not the thermostat by crossing or jumping the R and W terminals (or associated wires) together. This will keep the furnace calling for heat. As it is approaching set temperature, get in front of the furnace and inspect the air filter to make sure it is clean, watch the control module for any error codes that may be turning off the system prematurely.

On a call for heat, the 24 volt thermostat sends a signal to the control module. The control module will indicate a call for heat with a light on the control either blinking or remain solid depending upon model. The inducer (exhaust) blower will purge all gasses from the furnace and pressurize a pressure switch. Once the pressure switch tells the module to continue, the electronic ignition will energize and send 120 volts to the igniter. The igniter will glow and you will be able to see it if viewed thru the small inspection port. Once the igniter gets hot enough, it sends a signal to the module opening up the gas valve (24 volts). Either a pilot will come on or the burner tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air blower will turn on in a minute or two.

What could go wrong? The unit will not run if there is no signal from the thermostat (bad thermostat or broken wire), the control module does not sense a signal from the thermostat (bad control), the inducer does not energize (bad motor), the pressure switch does not close (blocked vent piping, bad switch, plugged condensate hose), the igniter does not energize (bad control, bad igniter), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not light (dirty pilot), the burner does not light (bad burner, plugged orifice, not enough combustion air), the flame does not spread to each burner (bad flame spreader, dirty flame spreader, more bad burners), the flame safety sensor does not detect flame (dirty or bad flame spreader, bad flame sensor, broken wire, bad control), or the room air blower does not energize (bad fan motor, bad control).

Mar 07, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

Has started to drip water from the base of the unit - it is discharging from a small tube and is approx 11 years old


If this unit is that old than it is time to replace it. It has lasted longer than many of them do...

Nov 06, 2009 | Emerson Fans 300 Heating & Cooling...

2 Answers

Honeywell Thermostat power light


I just had this happen to me a few days ago. I hope you find this response before you did what I did and paid an AC guy $103 for him to do about 5 minutes worth of work. Here goes.

The power is shutting off because your drip line is clogged. Your drip line is the tubing that goes from your compressor (inside) to the outside of your house. When that tube gets clogged up (with algae and dirt) then the water will backup in the line. There is a protection circuit in the line and when it detects water (because of a backup) then it shuts all power to the AC off. If you take a shop vac outside and **** all the **** out then you'll be fine. The AC guy said that when I replace my filter every month that I need to pour about 1/2 cup of bleach in the line (from the inside) to prevent algae from forming and stopping the pipe up. Hope this helps someone out there before it costs them a $100.

May 18, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

Freeloader 300 pilot light goes out when I turn


make sure that the thermocouple is staying in the flame youmay want to replace it unless it is staing lit on its own until knob is turned if so gas valve bad

May 12, 2009 | Emerson Fans 300 Heating & Cooling...

1 Answer

Vulcan 300 Freeloader Gas Water Heater


I assume it has a pilot. Try blowing out the pilot area with compressed air or CO2. Then relight the pilot.

Dust can cover the pilot combustion air inlet and cause it to pull away from the safety generator or thermocouple. Its called an oxygen depletion arrangement on some space heaters. I assume your Domestic Water Heater has this setup as well. Even if not the thermocouple is not getting all then heat from the flame. If this doesn't work get back to me here. We'll try 1 more thing.

If this helps you please grade me accordingly. GOOD LUCK

Mar 04, 2009 | Emerson Fans 300 Heating & Cooling...

3 Answers

Honeywell ST6400C with no display


I pressed the reset button in error and the display just would not return o no heating or hot water. Nothing tripped on the board and all wires and the unit itself showed power coming through.I got it working again by sheer determination.

What I did
I took the unit from the base plate and opened the front panel to see circuit board. It has 4 clips and it all goes back together easily.

What I did.Time taken 15 minutes.

The tiny rubber reset button was collapsed, perhaps maintaining the 'off' situation.

I moved a tiny wire from touching the side of the battery.Perhaps not important but it didnt look right.

When i remounted the unit it lit up beautifully.

So the solution lies in 1 or all of these 3.
If it happens again I will try

1. simply remove the unit from its base plate and remount to see if that is all it takes.

2. Open the front and check the reset button isnt collapsed and stuck.

3. Just move that little wire from leaning against the battery -(least sure of why this might help)

hope this might help someone else

Catherine - a determined blonde lady

Nov 14, 2008 | Honeywell Programmable Thermostat Heater

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