Why does my nordmende tv look for a rescan every time I switch on

Question edited for clarity, your television is 'Nordmende', not 'Norfmende'.

Time for a new one, but try the power reset first as mentioned here.

The standby light on my nordmende tv keeps flashing

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Sep 27, 2012 - Unfortunately, the symptoms you are experiencing (flashing power/status light, tv won't power on) are generally symptomatic of an internal ...
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How to fix my nordmende tv as blue light is flashing and ...

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Its the power supply board, capacitor(s) have gone. Solder on new or replace board. source: 26" lowry tv red and blue standby light flashing and tv wont turn on?

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  My nordmende tv model nmh077fhd blue light is flashing ...

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  Normende tv red light wont come on Nordmende tv blue light flashing Nordmende ... said: nope. will turn on and work fine until the screen dims, goes black.

Probably needs updating. Switch it off and on again then run a channel search within the menu system.

Assuming that we talking about digital channel could be couple reasons. First- too small antenna or in wrong location. Usually at evening, night hours there is less interference from cars, running electrical equipment etc reception is better. Far away stations reception is also better at night. Trees, houses etc also affect reception. If you in USA you can use site: antennaweb.org to determine correct antenna and direction to receive channels in your location.

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Ok This is what I found out and hopefully found your solution..
Have you heard of Double Rescan?
The Federal Communication Comission Designed a Process called double rescan.
Double Rescanning erases and thenreprograms the channels in the converter box an digital TVs memory.
To Double Rescan, you will first need to disconnect the antenna from the converter box or antenna.
Then disconnect the converter and or digital tv power supplies from the wall. Wait a minute before plugging them back in. The antenna should still be disconnected.
With the antenna disconnected run the channel scan function on the coverter box or digital tv. When the scan completes you will have completely removed any channel data the converter box or digital tv, had in its memory.
Now it's time to rescan for real.
Do this by reconnecting the antenna to the converter box or digital tv and running the channel scan function again.
Thus the double rescan is born.
If the double rescan doesn't work, then try some tips and tricks to get your converter box up and running..I will have to look up the url again that has the tips and tricks...
If the double rescan doesn't work let me know and I will look up more options..
I really hope this works..

If you're dioing a rescan, then all it is doing is refreshing the existing channel slot frequencies from the last time it went and found channels. The big retune has moved a lot of channels. You need to do a Factory Default / Shipping Condition / First Time Installation scan. This blanks the TV's channel memory and starts again.

You'll have to go to the menu and rescan for channels again. If you have cable this should be no problem. If you are using an antenna for over-the-air signals, you do potentially run the risk of losing other channels as those signals come and go and are stronger at times than other times. If it happens, you'll just have to rescan again, possibly at a different time of day or day of the week.

The main system memory IC to your TV is faulty. It must be replaced with same type and number. It is a skilled work. Seek assistance of any experienced service technician for help.

Remove the Aerial.
Switch on or if it's frozen switch off at the mains and on again.
Press Menu
Installation and enter password - 0000
Select 'Default Setting' and OK
Select 'YES' and OK to restore all settings to factory default.
Confirm again to start loading, enter the password again and it will start scanning for channels but won't find any.
Replace the aerial and press OK to rescan and now it will find channels. On completion press SAVE then EXIT on your keypad.
You won't lose any saved programmes but you will have to re-schedule your recordings.

Just go to walmart and buy a good digital antena.Should work great.Just rescan all ur channels again.