No Air blowing on Rav4 Windscreen

[DavRavNI]

Can anyone advise on possible reason for lack of air flow when heating/cooling system is set to blow on windscreen. All other heating/cooling settings seem to be fine. Heater is hot, A/C is ice cold, dash vents and side vents are blowing strong but when the system is set to Screen/feet using button to bottom right of fan or the Screen button is pressed (with A/C then coming on automatically) there is barely any airflow from the Windscreen vent. There is good flow to the footwells when the setting is on Screen/feet.

I have run the diagnostic cycle on the heating system to check for error codes as described by Anchorman on 31 May 2008.

The codes showing are 21 & 24. Any advise would be welcome.

 

[DavRavNI]

After a bit more research and testing I think that the codes 21 & 24 are related to the Sunlight sensor on the dash. I did the first test in the dark and repeated it this morning in daylight and the code was 00-Normal. Repeated with sensor covered and 21 & 24 came up.

Here's link to original post explaining how to test heating/ventilation system if it helps anyone

Also pulled out the radio and centre vents to see if anything amiss but appears ok.

In summary i'm no closer to solving problem

[vjota2]

Hey! 

Currently I'm facing the exact same issue, identical simptoms.

 

Did you ever find what's causing this issue? Would be really helpful.

 

Thanks, Vojtech