Hi all,

Have just discovered after recently purchasing an apartment with one of these units that the heating does not work.

The air conditioning works fine.

The previous owners told me they basically never used the system at all (one of them was concerned about allergies) so I'm wondering if the reversing valve may be stuck.

I've read that a light tap on the valve may solve the problem but I don't know where the valve is located.

Wondering if anyone with experience could point me in the right direction?

Ben