We have a 2.5 ton heat pump with backup furnace. We have had 3 tech out here to try to get this system working. All said ghost leak freon in. Last guy said no leak could find nothing wrong with system. My husband and I took it upon ourselves to take soapy water and check for leaks and totally cleaned the system a coil, filters(which we change monthly). The system worked for 4 hours with 50 degrees showing out of registers. Then just stopped. Froze up. My husband had checked at 2 hr. point was not froze up. This last guy said it's the expansion valve. We are already over 500.00 in on this unit this spring. Does anyone have any ideas for us or agree with the last tech?? Please help us out Momma is hot! I cant afford much more.
Thanks in advance!!