LewisWhelan
Member
- Joined
- Jan 30, 2018
- Posts
- 5
We have a 2004 Winnebago Adventurer with a Coleman Mach heat pump. The heat pump will produce heat but it will not cool. We were trying to cool when the outside temperature was 77F. When the heat pump is on cool the heat pump turns on and the fan runs but it is just blowing warm air. When it cooled off at night to 60F the heat pump did produce the required heat. Any advice would be appreciated. We checked the filters and the look fine. Could this be a result of low coolant?