Water heater issue

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Water heater issue
Author: paulr46 (IL) After showering for about 2-3 minutes, the hot water runs out and the water turns cold. What is the likely problem? Forgot to mention ... water heater is about 20 years old. Repair or replace???
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Re: Water heater issue
Author: Paul48 (CT) Most likely only the top of the tank is being heated. Test the top t-stat to make sure it is transferring power to the lower t-stat. If NO, replace upper t-stat. If YES, test the lower t-stat to make sure it is transferring power to the element. If NO, replace lower t-stat. If YES, test lower element for amp draw to verify it is no good. Be careful, electricity can kill you.
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Re: Water heater issue
Author: packy (MA) could also be a dip tube issue?
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Re: Water heater issue
Author: hj (AZ) Hasn't been a real problem for over 20 years.
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Re: Water heater issue
Author: paulr46 (IL) Forgot to mention ... water heater is about 20 years old.
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Re: Water heater issue
Author: paulr46 (IL) Yes, must be careful with the elec. If not, won't be needing a water heater any more!
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Re: Water heater issue
Author: srloren (CA) Replace it ASAP. It is full of calcium deposits and costing you a small fortune to operate!
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Re: Water heater issue
Author: srloren (CA) Also you are Most likely ingesting legionella bacteria.
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Thanks to all who responded.
Author: paulr46 (IL) Thanks to all who responded. I appreciate your insights. Edited 1 times.
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