Common signs that your heat pump needs cleaning and adjustment include:unusual noises or vibrations,a sudden increase in the amount of dust,reduced heating or cooling performance,increased energy consumption,frequent shutdown,start-up problems.If you notice condensation or fluid leaks around the unit, this is another warning sign. Regular inspection and maintenance can prevent more serious problems and ensure the longevity of your heat pump. Don’t postpone an inspection if these signs appear, and contact a professional as soon as possible.