How important is the annual maintenance service and what’s involved in it?
Right now, it looks no different than the annual boiler service. This is what I have
· Clean evaporator coil;
· Check antifreeze;
· Clean magnetic filters/strainers;
· Remove trapped air;
· Check primary pressure;
· Check flow rate;
· Check controller settings;
· Ensure heat pump system is safe;
· Clear debris from drip tray and ensure water is draining away correctly;