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Author:
Ricardo22 (MD)
I have a 20 year-old Thermasol steam generator attached to my shower. It makes good steam now that I have flushed with descaler liquid. But now, when I turn the generator off, after some delay, water begins to drip out the steam head in the shower . The flow stops when I shut off the water supply valve. Also, the pan fills up with water. I hear the solenoid clicking when I turn the generator on and off, so the switch is likely not frozen in the open position. It is hard for me to access the interior of the unit due to its position. Any ideas what the problem is and possible fixes?
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Author:
North Carolina Plumber (NC)
I would say that the solenoid valve needs replacing.
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Author:
hj (AZ)
About the only, or at least most likely, cause is a leaking water fill valve.
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Author:
Ricardo22 (MD)
Even if the flow stops when I turn the water fill valve off?
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Author:
Ricardo22 (MD)
Even if I hear it clicking when I turn the timer on and off?
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Author:
North Carolina Plumber (NC)
The clicking confirms that the electrical part is working.
Turning the valve off to stop the leakage confirms that the solenoid valve is leaking thru.
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Author:
Ricardo22 (MD)
OK then,its the solenoid; but I don't think I can get into the box to replace it. Do you think the solenoid can be fixed by running a high concentration of descaling solution through the system? (This assumes that the solenoid/valve doesn't close completely due to buildup of scale.) Actually, the leaking problem started after I ran some descaler through. Maybe it just needs more dissolving of crud.
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Author:
Paul48 (CT)
The de-scaler probably damaged the seals in the solenoid valve.
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Author:
Wheelchair (IL)
Descaling is normally done at the factory... or by authorized service tech when a steam vessel becomeings mineralized. I also agree that when you did your best, you probably caused the damage to the solenoid assy.
Have you called the factory?
Best Wishes
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