Arrived to no heat. Found that the low stage furnace pressure switch had failed. Replaced switch and performed function check n system running and heating the home upon departure. Customer requested a plumber to come out. She needs a toilet replaced and would like a price on moving a sink. Customer requested an electrician to come out. She is concerned her solar system is losing efficiency. She also wants to ensure that her electrical is safe. Plumber and electrician are set to come on Friday.