Tech inspected unit found extremely rust burners and induced draft motor tech engaged heat and induced draft motor would vibrate causing the unit to vibrate as well tech tech engaged blower and cool circuit would engage with no y call tech found thermostat has a short from fan and cool when calling for fan only cool circuit would engage tech did mege compressor and found it mege caution indicating compressor is likely to fail due to age of unit and extensive repairs needed tech recommend new unit tech called in a mandatory due to customer having to leave field supervisor is scheduled to come back Monday to give best options