I had to take my thermostat off the wall and i dont have the manual to put it back on .

You need to remove the thermostat from the wall plate to change the battery. Look on the bottom of the thermostat for a locking screw. Loosen this screw with an appropriate screw driver. Then pull the bottom of the thermostat away from the wall plate and then lift up from the bottom. When you put the thermostat back on, line up the brackets at the top of the thermostat with the slots on the wall plate. Then push the thermostat against the wall plate and tighten the locking screw.

The documentation for the Honeywell RTH2300B1012/U is available on the product page: https://www.honeywellstore.com/store/products/5-2-day-programmable-thermostat-honeywell-rth2300b.htm . Click on the Manuals tab. See page 4 (page 6 of the PDF) for removing the thermostat from the wall plate. See page 9 (11 of the PDF) for replacing the batteries and putting the thermostat back on the wall plate. The current link to the manual is https://www.honeywellstore.com/store/images/pdf/rth2300b1012-u-5-2-day-programmable-thermostat.pdf .

I hope this helps.

Cindy Wells

A manual for the thermostat is needed to recalibrating if doable, thermostat model number and brand needed to get the right manual.
A thermostat mount location should be planned. Any holes leading into the wall should be sealed, in other words, the thermostat needs to be insulated and isolated from fake temperature readings, no back drafts or not heat or cooling sources near by.

I suggest to everyone NEVER to buy a cheap thermostat from any box store regardless of brand. Always go with Honeywell or White Rodgers high end stats and DO NOT lose their booklets.

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.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

The thermostat is built into the touch pad,along with transistor board,the part replacement is almost as expensive as the whole ac unit,I dont know witch wire to tell you is the thermostat,wire,but it may be marked thermostat,if so,put,in line on that wire a manual thermostat for and older model ac,none of the new ones will have a manual thermostat.So ask for a manual thermostat control,I hope this helps.

The outer shell of the thermostat pushes on(clips) to mounting bracket attached to wall.

1. Remove the packing material from the thermostat. Gently

pull the cover straight off the base. Forcing or prying on

the thermostat will cause damage to the unit

http://www.emersonclimate.com/Documents/White-Rodgers/0037-6488.pdf
This is the manual for your unit.

The model number is going to be on the thermostat. It is not unusual for the number to be on the back of the stat, meaning you may have to take it off the wall. It could also be found betweenthe base ans the stat.

Once you have the model number googel "Honeywell XXX" with XXX being the stat model number. If you can't find the stat, you can go to the Honeywell web site and do a search, matching your stat, by the pictures and functions. It is a bit tedious, but it works.

YEP IF THERMOSTAT STUCK OPEN IT WILL CAUSE LOW ENGINE TEMPERATURE AND LOT OF GAS COMSUMPTION OR POOR GAS MILEAGE.TO REMOVE THERMOSTAT.FIRST YOU HAVE TO DRAIN COOLANT LEVEL BELOW THERMOSTAT LEVEL.REMOVE THE WATER INLET FITTING GASKET AND THERMOSTAT.THEN PUT EVERY THING BACK VISA VERSA.IF YOU HAVE THERMOSTAT PAPER GASKET.YOU WILL HAVE TO PUT GASKET SEALER ON BOTH SIDES OF GASKET TO KEEP IT FROM LEAKING.IF YOU HAVE RUBBER GASKET DONT PUT NOTHING ON IT.IF RUN IN A LITTLE TROUBLE.YOU CAN BUY HAYNES REPAIR MANUAL.IT HAS PHOTOS AND INSTRUCTION TO HELP YOU.

Per manual do this: System set to Off Remove batterie Replace IN REVERSE POLARITY POSITION or 5-10 seconds Put back in with CORRECT POLARITY Reprogram per sticker on back of thermostat. Done. Just did this myself and it's simple and effective! PaulHaven

UNITS THEMOSTAT IS BAD REPLACE THERMOSTAT IF DONT SOLVE PROBLEM MAKE SURE UNIT IS NOT FREEZING UP AND BOUNCING OFF A "FREEZE STAT" CASING COMPRESSOR TO SHORT CYCLE