reversing valve coil buzzing
Mammonth m#D013HHF1 S#89 E 146159
Hi I have an issue with my heat pump . The reversing valve coil is making a loud buzzing noise. I took off one lead from the coil and I heard a flush and hp is now running in cooling. When I try to reattach lead to reverse valve coil it makes a loud buzzing sound. I am only reciveing 8vac at rv coil leads when compressor is running . Rv coil is a 24v. The wires coming back from the rv go to a relay and transformer. Why am i getting a excessively loud buzzing noise from the coil?