New Holland T7 heating gets weak

[Newholland235]

Heating/aircon in my t7.235 is very weak but fan still going gets to be no air after 2-3 hours, is there anything easy to check

 

[Mc115reed]

Heating/aircon in my t7.235 is very weak but fan still going gets to be no air after 2-3 hours, is there anything easy to check

The filter?

 

[ollandroverman]

Air-con matrix will be freezing over and blocking airflow. My Puma does this, especially on humid days. I just knock the air-con compressor off for 5 mins every hour to defrost it and restore air flow.
There is a sensor that that causes this, but turning off the air-con periodically, so far, has avoided the time required and is easier than trying to access the air-con matrix.

 

[Mur Huwcun]

Air-con matrix will be freezing over and blocking airflow. My Puma does this, especially on humid days. I just knock the air-con compressor off for 5 mins every hour to defrost it and restore air flow.
There is a sensor that that causes this, but turning off the air-con periodically, so far, has avoided the time required and is easier than trying to access the air-con matrix.

As a getoit of jail try keeping the fan as fast as possible and the A/C not set too low

 

[Newholland235]

Filter behind seat is new, pipes dont freeze up its the air flow is the problem

 

[capfits]

Filter behind seat is new, pipes dont freeze up its the air flow is the problem

Possibly resistor for fans control.
Check it behind fan speed control, be looking a bit singed at solder points.