Craig D Isham
New Member
Hello all, need some help. I have a 2020 CAT 299D3 XE that I use primarily for land management/forestry. During the winter I use it to run a CAT Snow Blower. This winter, the heater has been giving me issues. It will at times blow hot/warm, but it will then blow cold with no warning. In can not figure out why it blows cold air even though the engine temp is up and It has been running for several hours. Any thoughts?