Don't know about your landlord specifically, and I'm no landlord, but there's also a bunch of people (including homeowners) that will wait until summer starts t

Don't know about your landlord specifically, and I'm no landlord, but there's also a bunch of people (including homeowners) that will wait until summer starts to test and then complain about HVAC... just on peak season for HVAC maintenance, where the waiting times are long (and the price will probably be higher).