Hello, I have a model FSU2x2400A air handler and a condenser model EQ71924434. The unit will run for a hour and a half and trip 5 amp control fuse. the tstat was replaced the control board in air handler was replaced. the defrost control board and coil temp sensor was replaced the unit still trips fuse in a hour and a half. the unit works well in heat mode cool mode and emergency heat
- posted
15 years ago