Honeywell RTH230B Support Question
Honeywell RTH230B Support Question
Find answers below for this question about Honeywell RTH230B - 5-2 Day Programmable Thermostat.Need a Honeywell RTH230B manual? We have 1 online manual for this item!
Question posted by gigginggirl on December 10th, 2016
Blank Thermostat!
The battery light has been blinking on our thermostat for several weeks. This morning, our furnace isn't working at all, but the display was still working. We replaced the batteries on the thermostat, but now have a blank display. However, when we flip the "fan" switch, the fan does turn on. But, nothing else works, and there is no display. Can you help?
Current Answers
Answer #1: Posted by BusterDoogen on December 10th, 2016 9:29 AM
BusterDoogen
Member since:
October 30th, 2011 Points: 28,565,407
Member since:
October 30th, 2011 Points: 28,565,407
You should remove the cover & go to page 2 for the wiring diagrams, check the connections to make sure you have a secure connection(s). Try "resetting the microchip". Hold down the "Mode" button, take the batteries out for a couple of seconds (still holding down the Mode button) and then put the batteries back in and release the Mode button.
I hope this is helpful to you!
Please respond to my effort to provide you with the best possible solution by using the "Acceptable Solution" and/or the "Helpful" buttons when the answer has proven to be helpful. Please feel free to submit further info for your question, if a solution was not provided. I appreciate the opportunity to serve you!
Related Honeywell RTH230B Manual Pages
Owner's Manual - Page 1
... the thermostat from its
baseplate (the screw cannot be removed in °F or °C
• Battery replacement indicator
...removed).
Early Start - Time display (12 h or 24 h)
• Filter replacement indicator
2. System operating mode...03-11 1/4 RTH230B
Programmable Electronic Thermostat
Installation and User Guide
1. Introduction
The RTH230B programmable thermostat can vary depending ...
Owner's Manual - Page 2
...thermostat will display the ambient temperature once it works only when heating or cooling is normal that the displayed temperature be higher than the ambient temperature if you have a gas or fuel oil furnace.
You will flash on the wall. After the batteries are holding the thermostat... Fan relay
2.3.6 5-wire Heating and Cooling
RTH230B
Heat relay
Fan relay Cool relay
2.4 Setting...
Owner's Manual - Page 3
... for 120 days, then the thermostat will disappear.
3.5.2 Programmable Mode
Maintains the temperature according to the next parameter (menu item), briefly press both
buttons
simultaneously for work Return home
Sleep
To see the default settings of each period, see section 5.1). The icon disappears once the batteries are saved and do not need replacement. DISPLAY DESCRIPTION
DEFAULT...
Owner's Manual - Page 4
... to 50°C) Temperature display resolution: 1°F (0.5°C) Accuracy: ± 1°F (0.5°C) Heating/cooling cycle lengths: 10, 12, 15, 20 or 30 minutes (programmable) Compressor short-cycle protection (minimum off time): 5 minutes Data memory: non-volatile Dimensions: 5 in the possession of a consumer. x 1 in programmable mode.
6. Customer Care will not work if you were in...
Similar Questions
Blower Fan Wont Turn Off Despite No Heat Or Cool Being Commanded
we have a new 2 stage keeprite Air to Air heat pump with aux backup. Honeywell th6320r wireless ther...
we have a new 2 stage keeprite Air to Air heat pump with aux backup. Honeywell th6320r wireless ther...
(Posted by efsharpe 9 years ago)
How To Install My Pro 4000 5-2 Day Programmable Thermostat
(Posted by ferdPolar 9 years ago)
How To Open Honeywell Rth230b 5-2 Day Programmable Thermostat
(Posted by muhsiSMIL 10 years ago)
Honeywell Thermostat Rth230b Flashing Snowflake Fan Wont Turn
(Posted by dicjctho 10 years ago)