Toyota Nation Forum banner

A/C blowing hot

847 Views 3 Replies 4 Participants Last post by  Nico
It has been converted to 134A.Just kept filling it up whenever it is not blowing cold.Tried it but now and it isnt cold, but blowing hot air.What do I have to change:Compressor maybe?(there is no spinning sound like when A/C switch is on.:(
1 - 4 of 4 Posts
check fuse and confirm not blowing hot when ac not engaged.
How was the conversion done?

I would bring it to an a/c specialist - they will tell you whats wrong, get a quote and shop parts. Or if the price is good - have them do it.

Many conversion failures I have read about here :(
Frequent problem with r134 retrofits is when o-rings are not changed. R12 is thicker than r134. If you keep the r12 o-rings with r134 your charge will just leave much quicker.
Have you checked the charge : is it enough ? Another possible problem is that you put TOO MUCH charge : if that occurs the symptoms will be the same as for a low charge : hot air
1 - 4 of 4 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.