Cab heater boost not working ..any ideas ?

[electricwig]

Hi all , got in the van this morning and hit the cab heater boost ( the one with the arrow on ) but nothing ..normally kicks out a good blast but nowt ! ..anyone else experienced this ? .. thanks John

 

[airhoguk]

That just recycles the air already in the van so will be dependent on what your fan setting is. It will sound louder and feel like it’s moving more air though but that’s because it’s recirculating the air in the van so the flap valves for the air intake will be set accordingly

 

[electricwig]

That just recycles the air already in the van so will be dependent on what your fan setting is. It will sound louder and feel like it’s moving more air though but that’s because it’s recirculating the air in the van so the flap valves for the air intake will be set accordingly

Hi it has worked in the past on certain settings just nothing now