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640hort need part number for thermostat

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How do i reset my honeywell thermostat


Remove thermostat from wall, leaving base plate on wall.
Model number appears on back of device.
Google search thermostat model in following format: Honeywell xxxx32 thermostat .pdf
Adding .pdf to search parameter will yield product manual.
Also while thermostat is off the wall, change batteries located in compartment on back of thermostat. These batteries must be changed periodically, for example each 3-4 years.

Jul 17, 2013 | Honeywell TH3110D1008 Pro3000 Thermostat

1 Answer

How do I get fan to shut down auto with no G wire in new thermostat


We need make and model numbers from the unit and the thermostat.

Jul 14, 2013 | Lux Programmable Thermostat Atx500e

1 Answer

Temperature


Pull the thermostat loose from the wall so you can see the model number located on the back of device.
Google search model: xxxxcy .pdf
Or search for british gas thermostat .pdf
This will give you access to product manual.
Also check batteries located on back of unit. Install fresh batteries. Memories should be retained on the chip during battery change.
Add a comment with model number, and I will try to locate thermostat manual.

May 20, 2013 | Water Heaters

1 Answer

How to unlock screen


Change battery located on back of thermostat??

Go to google
Search for your model number 1234XX .pdf
Add .pdf in search parameter.
Honeywell posts most their thermostat manuals.
Open pdf file, and then Use Ctrl+F for search feature
Word-Search manual

To find model number on thermostat, remove from wall.
Model number appears on back.
Don't forget to replace battery while you have back exposed.
Dead battery can also cause lockout and malfunction

Apr 18, 2013 | Honeywell TB8220U1003 Commercial Vision...

1 Answer

Light stays on


Question posted under Honeywell thermostat.
If you have honeywell thermostat, then model number is located on back of device.
Google that model number in following format: Honeywell xxxxx4 .pdf
That will give you on-line pdf manual that is downloadable and searchable.
Then re-post question with exact model number and include what you are operating so expert can access and read manual alongside you.

If you have some other device, then post the brand and model number, and include what voltage, and what you are controlling for best possible solution.

If you have a timer or a switch, it is possible that more information is available on following links:
http://waterheatertimer.org/How-to-wire-switches.html
http://waterheatertimer.org/How-to-wire-timers.html

Aug 27, 2012 | Honeywell T6360b1028 Room Thermostat

1 Answer

The reset button has popped more then once.


You have electric water heater.
Electric water heaters are fully repairable by homeowner.

Reliance is AO Smith company
http://www.aosmith.com/OperatingUnits/Detail.aspx?id=138&ekmensel=c580fa7b_12_0_138_3
http://www.reliancewaterheaters.com/prod/elec.html

Age of Reliance water heater is shown on serial number located on side of tank:
first digit is letter. Next two digits are numbers: for example C06 means 2006.
Serial number also shows model number & wattage of elements in case you need new element from hardware store.

ECO reset button trips when upper thermostat senses temperatures higher than 150 to 180 degrees.
When ECO energy cut off trips, it turns off power at the reset button, so the tank does not continue overheating.
Tripping reset button says tank is receiving electricity, so we can eliminate that suspect.

There are 4 reasons why ECO will trip.
1) Bad upper or lower thermostat: solution replace both thermostats for about 25$. Steps shown in link below.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
2) Loose wire or shorted wire at or near upper thermostat: Open covers on water heater and inspect parts for signs of high heat and burning.
3) Bad element shorted to ground in center of element: Solution test elements and replace defective element.
http://waterheatertimer.org/How-to-test-water-heater-element.html
http://waterheatertimer.org/How-to-replace-water-heater-element.html
4) Factory-installed insulation and cover has been removed from tank: thermostat exposed to cooler temperatures, and misreads tank temperature, and then elements keep heating water.

If you want to test all the parts before replacing anything:
http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html


Thermostats are generic, and each functions same way and each can replace the other.
Same is true for both upper and lower thermostats
geno_3245_184.jpg

Dec 14, 2010 | RELIANCE ELECTRIC WATER HEATER

1 Answer

What to do if water doesn't get hot even though I have increased the thermostat settings... the heater isn't even4 months old and it has done this from day one


You have electric water heater.
Electric water heaters are fully repairable by homeowner.

Reliance is AO Smith company
http://www.aosmith.com/OperatingUnits/Detail.aspx?id=138&ekmensel=c580fa7b_12_0_138_3
http://www.reliancewaterheaters.com/prod/elec.html

Age of Reliance water heater is shown on serial number located on side of tank: first digit is letter. Next two digits are numbers: for example C06 means 2006.
Serial number also shows model number & wattage of elements in case you need new element from hardware store.

A) If your water heater receives very cold incoming water, it may not heat fast enough to keep tank warm.
Add a tempering tank.
http://waterheatertimer.org/Tempering-tank.html
Add insulation over entire water heater except TP valve. Insulate pipes completely.
Read more information:
http://waterheatertimer.org/9-ways-to-save-with-water-heater.html

B) If cold outside temperatures are not to blame, your water heater may have a bad thermostat or element.
Narrow down the suspects:

Water heater is 240Volts since you have more than 1 thermostat.
Water heater has some hot water.
This tells us upper element is working.
And that water heater electricity is working.
And that reset button is not tripped.
And that heater is not experiencing run-away overheating event.

That gives us 3 solid suspects.
1) lower element is burned out. Test lower element using inexpensive multi-meter from Home Depot.
http://waterheatertimer.org/How-to-test-water-heater-element.html
Replace element with same wattage shown on label, and clean out sediment:
This will restore water heater to full 99% efficiency.
http://waterheatertimer.org/How-to-clean-sediment-out-of-electric-water-heater.html
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html

2) Upper or lower thermostat is bad. Replace both thermostats for about $25.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
If you want to test thermostats and all parts before replacing anything:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

3) Burned or shorted wire. Turn off power. Open covers on side of tank. Remove insulation. Inspect parts for signs of high heat and burning. Especially lower element. Tighten any loose wires. Replace part that shows signs of burning.
Put insulation and cover back over thermostats so cooler outside temperature doesn't cause thermostat to misread tank temperature.

Dec 13, 2010 | Reliance WATER HEATER CO #9-40-DKRT 40GAL...

1 Answer

Model 640HORT Reliance 606 40 gal LPgas came to cabin, water cold, lit; ran for 4 hours, flame went out, burner won't come on.


It does sound like a weak pilot thermocouple. Change the thermocouple first. Make sure you have an adequate supply of propane serving the water heater. If it still works for a while then completely shuts down, you will need to replace the control valve. Call Reliance and see if the unit is still under warranty, you may be able to get free parts.

Sep 11, 2010 | Reliance & LP Gas Water Heater Control

1 Answer

Wiring


The new thermostat (I assume you must be changing one) will have several possible scenarios. If you have two elements and thermostats you look for the diagram that says two elements working NON-SIMULTANEOUSLY. In other words the top element heats until the thermostat is satisfied and then, and only then the power is sent to the bottom thermostat. The wiring diagram will have the numbers and colors of the wires for everything in the heater except your feed wires. Those colors don't really matter much. You will have three conductors--two hot wires and (likely) a bare ground wire.

Hope this helps.

Mike

Apr 05, 2009 | Water Heaters

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