google won't show ads some time in my blogs??

i have two blogger blogs. i have put 3 ad units. but most of the time only two ad units are loading. one unit is empty. i double check there is no error on my codes. as an example my blogs are http://bestnewphones.blogspot.com and http://thecarsbikes.blogspot.com

both blogs has a square ad on top left corner. you can see most of the time it's blank. check the source code there are equal number of ad codes. but one is not loading..why is this? nowadays my income is very low and impressions as well. please help

 

Happens when adsense doesn't have enough relevant ads in its inventory for your page's topic.

 

Is it not your browser having some problems loading the adverts? maybe you could try using another browser and if the problem persists it's probably the above reason

 

Whats the default for you , to show public service ads or color blocks, I noticed if you show over 3 ads none will show.

 

mine too. it show public service ads in the homepage but in the entry pages it shows some ads.
does this indicate something else?

 

well it happened to me once.
what you need to do is fix up your content, because it happened only the ad is not showing any relevant to your contents..

Try in new blog

 

This will happen sometimes when the text around the ad unit has a cuss word or adult terms.

 

you are correct. those rectangle ads are image ads only ads. that's the reason. i changed it into both text and image and now it's ok.
thanks a lot

 

It happened to me once.
I refresh the index some times then ad is appear.