Hi, I have recently had my karcher 501 vapour rapid steam cleaner's tank replaced. I have used it trwice with no worries, now the low water indicator light light comes on as soon as I turn it on. The tank is full. Also the middle light that indicates the machine is ready to use does not come on at all. Please help as I am sick of throwing service money away again and again. Thanks
I know that Karchers steam cleaners have had issues with the thermal overload. I have repaired Karcher machines that got turned on with no to little water in the tank and it would heat up really fast and trip the thermal overload. The thermal overload is to reset it self when it cools down but the problem has been the thermal overloads get stuck and dont reset. When they stick, they will give the same signs you have said. In those cases the thermal overload has needed replaced. The thermal overload did its job to trip, but it fails when reseting. I understand you don't want to throw more money into it, but that is the only thing you can do. You can get the part and do it your self, but they are tricky machines to get into and you dont want to break something trying to get in. Hope this helped.
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Fill the tank and determine if the plastic is leaking, or if the valves are leaking. if the tank is cracked, it would need replaced. There is an improved design now available.
You may cycle the valves on the bottom with the eraser end of a pencil.
Dear jrider784,
I solved a problem like this on FIXYA, just a few months ago. I gave this solution. Try to fill the machine from somewhere else. You can do this from the outlet. If you manage to do this, put on the machine. ( now you know that when there is hot water in the machine, the tap goes round free for safety). Now as the water starts to cool down....start trying to see if you can unscrew it. My plan is that with the hot water, the safety will start to work again. If the cap does not release the safety on cooling, then there is no other way but to destroy the cap and replace with a new one. Very important to mention that this job must be done by a qualified technician or some one who knows what he is doing. Working with hot water is very dangerous.
Regards,
Fulltech.
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