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- over 420,000 Posts - PlumbingForum.com -
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Author:
i_am_jim
We have a fairly new (2 years) water heater. It has begun to vary widely in temperature. Sometimes (after a long period of no use) the water is fairly cool. While taking a shower we have to use hot water only. Other times (also after a long period of no use) it seems to be the correct temperature which is about 120 F.
I don't think it did this when new. What could be causing this?
This is a Sears unit. The model number is 153.339461 & the ID 9211703010
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Author:
Shoemaker2 (MA)
I would guess it could be a build up of minerals on the temp probe of the gas valve..... or maybe a bad gas valve.
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Author:
dlh (TX)
am i reading it wrong or is the id # not the serial #? what i am seeing if the id is actually the serial # is a 17 yr. old heater but i could be wrong
is this a gas or an electric heater?
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PLUMBERS "Protecting The Health Of The Nation"
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Author:
hj
Gas, but unless Sears uses a different numbering system than normal, and it is possible, that would be a November 1992 water heater.
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Author:
dlh (TX)
that was what i am reading also. the only one i know of that is different is bradford white which uses a letter code
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PLUMBERS "Protecting The Health Of The Nation"
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Author:
hj
State and its variations use a letter for the year and a number for the month. AO Smith also has their own system.
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Author:
dlh (TX)
hmmmmm, dont remember the last of those i looked at but i dont recall a different system for either but then that isnt a surprise
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PLUMBERS "Protecting The Health Of The Nation"
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Author:
hj
AO Smith has the month and year coded, but there is a second combination of a single letter and two numbers which gives the year for an approximation of the age.
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