My mom gave me her Shark steam mop since it wasn’t working. It was getting hot but no steam was coming out. Google told me a common problem was mineral or calcium deposits blocking the steam nozzle. I tried poking at the steam outlet with a straightened paper clip and then with some 14 gauge wire but couldn’t clear it. Google also suggested running it with a 50/50 mixture of CLR and water but I didn’t have any.
Opening the back cover, I had found the insides rusty and a cracked tube with a spring coming out at the top of the heater. I disconnected the end of the steam hose that led to the output nozzle and cleared away deposits that blocked a very small 1-2 mm opening for the steam. It would have been a bit difficult to unblock it with the paper clip from the other side and the 14 gauge wire would have been too big.
When I tried to reassemble it, the hose was brittle and kept on cracking on the ends. I kept on cutting it and it ended up being too short. There is a long spring inside the hose is to prevent it from kinking. I was able to find replacement hose and clamps on ebay (search for 5/16″ or 8mm outside diameter silicone hoses).
Considering the rust, potential deposit buildups inside the heater and the power LED indicator that fell off due to rusted pins, I decided it wasn’t worth repairing.
I will tell her to use distilled water once I find a new replacement machine.