I have a RMR203HGA Temperature Humidity Station that all of a sudden won't communicate with the temp. sender. I changed the batteries in both units, put them next to each other, pushed the reset buttons, and did the search for a sensor steps and I still don't have an outdoor temp. reading. I have the sensor set on the #1 channel and the screen is showing that it is communicating with the sensor. The LED light on the sensor flashes every couple of minutes too. These units have been in use in the same location for 4-5 years with no issues. I need to know if I need to replace something or if it is fixable. Thanks for your help, Bob

Rod Wallberg

• 494 Answers
• Posted on Feb 11, 2010

SOURCE: dashes in my outdoor weather reading of Oregon Scientific station

The signals are not being received by the main unit. Try to reposition the unit or move it to a different location. Also make sure the antenna is in the clear and not next to any thing like a cordess phone or charger as these can make RF noise that can block or cover the needed signals.

SOURCE: Upon replacing the batteries, the

Hello. Chances are that the battery contacts in the outdoor unit are corroded due to exposure to moisture. Do this. Remove the batteries and clean the battery contacts in the device using the eraser end of a common pencil. Then reinsert the batteries. If that doesn't do it, go to any auto parts store and get a can of electrical contact cleaning spray and repeat the above steps. J.

SOURCE: I have a 433MHz cable

You have to push some buttons to tell the MAIN unit to scan, then put battery into the REMOTE, set channel, and hit reset through a little hole. And the MAIN should see it.

SOURCE: the outdoor temp on the LED read out says LL.L.

attaching photos here for your TV problem--they show the board and where the part is, if you attempt the repair I will tell you best way to get at it.

Cap is pretty generic part--almost any TV repair shop or Tv parts dealer will have it: .47 microfarad @ 200vdc (original part should have "0474 200 " marked on it and that is the value I indicated in plain english.

see photos and if you want to attempt I will tell you how to get the box out and do it.


Note board is seen removed from right side and pencil points to cap(it has been removed but the others around look similar)





just above this spot are two multi-pin plugs that have been removed.

Removing the light box will allow access without having to disconnect much.