If it is seeing low refrigerant, it will default to econ for compressor protection. To do this correctly, You should have the system diagnosed/recovered to determine the state of charge. It could be one of two things, it is actually low on refrigerant or, it has a faulty pressure/temp sensor falsely reporting a low refrigerant charge. The same low refrigerant code could set in either case.
Friday, March 26th, 2010 AT 12:14 AM