20 Most Recent
Questions & Answers
My honeywell electric thermostat is on 70 degrees but my heater system for a moblile home blows cold air after it reaches 68 degrees why?
Thermostats have multiple issues when you start checking them against thermometers.
1) the built-in thermometer may not match the set temperature because one or both need calibration. Compare the built-in to an external thermometer and see if there is any adjustment to make them match. Record the setting on the thermostat and the temperature when it starts and stops -- there should be a 1-3 degree range which may be adjustable. The set point should be in the middle of the on-off temperature spread.
2) the thermostat has a heat anticipator setting which may be set poorly -- turning off the heat before it reaches the set point - the fan normally runs for 1-2 minutes after the heat source is off. The anticipator is used to stop heating before reaching the set point as there are still a lot of BTUs coming out during the fan run-down -- usually 1-2 minutes.
Change battery on honeywell thermostat RTH2300B1012/U
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.
on Sep 13, 2019
On my honeywell thermostat cool on keeps on
On a Honeywell thermostat the flashing means that the system is in a delay to turn on the compressor. This is used to protect the compressor from coming on and off too often. The normal delay is about 5 minutes. After that the system should come on. If not there is s problem.
In order to help us help you we will need a little more information. What happens either at the inside unit or at the outside unit after the thermostat stops flashing "Cool"? Any fans come on? Do you hear a "KLUNK"? Any sparks? Please let us know so we can help.
on Aug 22, 2019
Honeywell Thermostat backlight TH8320u 1008
I have not seen this issue and the manual gives you the option of either off or dim to high upon key depress.
0280 Backlight 0 Backlight on for approx. 8 seconds after keypress 1 Backlight always on low intensity, full bright after keypress (requires 24VAC connection).
I am sorry I can not offer any further info.
on Jul 14, 2019
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