My remote sensor started showing up with a temp reading of LL.L F. I changed the batteries, but it's still doing it. It's giving a humidity reading, but I think that's also wrong. I've had the remote sensor in my attic (to monitor head/humidity up there) since purchasing unit Oct 2010. I've had "ultimate lithium" batteries in base and remote units. It got as cold as single digits and as hot as 120. Is the unit toast?

The indoor temperature and humidity and outdoor temperature readings can be calibrated on the display to improve accuracy. Calibration can improve accuracy when sensor placement or environmental factors impact your data accuracy. 1. To access calibration mode, press AND HOLD the "?", "?", and "SET" buttons for at least 5 seconds. 2. Once in calibration mode, the preference you are currently setting will be highlighted on the display. 3. Press the "?" or "?" buttons to calibrate the data value higher or lower from the actual reading. 4. Press the "SET" button to confirm the calibration adjustment. The " " icon will remain illuminated next to calibrated values. 5. The next adjustable data will begin flashing, indicating it is ready to be calibrated. Repeat Steps 1 - 4 to calibrate additional data. The preference set order is as follows: OUTDOOR TEMPERATURE INDOOR TEMPERATURE INDOOR HUMIDITY BAROMETRIC PRESSURE (must be set to MANUAL mode; see page 12) After 20 seconds of inactivity, the display will save the adjustments and exit calibration mode. Note: Calibrations will be erased if the display is reset or if batteries are removed and the power adapter is unplugged.

remove all batteries, bring the two units together and put the batteries in the base unit first, then the outdoor unit; they should sync within 2-3 minutes. Once they have exchanged temp and humidity once, you can separate them. Good luck.

i have the LL.L error in my sensor, i noticed it was disconnected, i soldered the foot and now it works.

Mine did the same thing:

• Try first replacing the temp sensor: $4.76 from Haier Part#RF-6250-01

• If that doesn't work replace the control board: $26.81 from Haier RF-0668-04

Hi,
plz follow the steps...

1. Insert windows xp bootable cd into the drive
2. Power on the machine
3. When the logo displays, press F12 to show the boot menu
4. Select the CD/DVD
5. System will start the job
6. After showing Setup is starting windows, it'll shows the install option
7. Press ENTER
8. It'll show the drive but the drive is not partitioned
9. You can easily understand by reading the instructions
10. While creating it'll ask for drive space
11. Put 50000
12. Press ENTER
13. It'll ask for type of file system that you have needed, select the 1st one (Quick using NTFS)
14. It'll ask 4 format the specific drive. for that you have to press 'F'
15. It'll format and copy the needed files
16. System will restart. After restarting it'll start the job. plz wait.....!!! (system restart many times to complete its job)
17. While working it'll ask for the product key, time, etc.
18. Sit infront relax and give the needed information that you can understand easily

thanks & regards
Anas K A

This clock keeps track of the temperatures for each of the last 12 hours. So on the bottom, you'll see the temp at 12 hours ago (-12), 6 hours ago (-6), etc. On the left side, you'll see the temperature in Farenheit go from +5.4 to -5.4 from where it is currently. So if the temperature is 70F degrees right now, and it was 65F degrees 12 hours ago, then it'll show -5 in the first -12 column. It will always be at 0 for the current hour on the right. The scale on the right is in Celcius so it does the exact same thing as Farenheit.

I have the same problem. Any ideas? My guess is that the outside temp sensor is defective.

Push and hold down the channel button, wait for beep, then on the sensor, push and hold the tx button, wait for beep.

Uniden EWCI936
To get the outside temperature working again, open the outdoor sensor box carefully loosening the one screw with a screwdriver, insert 3 brand new AA batteries, check phone for outside temperature. If not showing on the phone display, try changing the 'channel' setting, just above the batteries. Be careful not to break the tiny switch. Gently use a smaller flathead screwdriver, if needed. There are 3 settings. Mine worked fine on the first setting. If it is showing on the phone set screens, then, carefully screw the lid back on to the sensor box, and re-insert into the sensor wall holder. I keep mine in a plastic bag on a shelf outside, away from sun, so I can get a true reading day or night. It is always a bit warmer in the sunlight than the true outdoor air temperature. Enjoy

I've had a similar problem with another model, an Oregon Scientific Model IWA-80055 Wireless Thermo Clock, in which when I replaced the batteries in the remote sensor, the clock would not read the temperature from the remote sensor.
I found it fairly consistent to solve this by taking a battery out of place in the clock and putting it back in.  Unfortunately this also messed up the clock's time and date.  This is also in the instructions catalogue for the device, check and see if yours gives a similar solution.