Water not getting hot on main and 2nd floor


  #1  
Old 10-01-19, 10:14 PM
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Exclamation Water not getting hot on main and 2nd floor

Hi everyone,

I just wrote a long descriptive post with pics and then all of a sudden it dropped a page came up saying oops sometbing went wrong.. lost it all �� here i go..

Approx 3 days ago while taking my early morning shower with water temp hot as normal (also stayed hot with prolonged use) the water went cold then got warm and fluctuated + - couple degrees never getting hot again. I checked all water faucets on 2nd and main floor and none of them get hot only warm. In my fully finished basement the water gets very hot as normal. Here are some details about my home:
-built 2002
-private Well water
-Main and upstairs living quarters approx 3775 sqft.
-4 bedroom 2 full bath upstairs
-5 rooms + powder room on main floor
-finished basement is approm 1750 sqaure feet with 1 bedroom with full bath, 3 additional room + half bath.
-Maintenance room is unfinished with oil tank, air handler for main floor of house, and boiler/furnace (dont know difference) I will be posting pictures unit.
-I was told by a friend to check the units temp guage with no water running then with water running. Read slightly under 170 then had my wife turn on upstairs bathtub on full hot. Watched the guage drop relatively quick. Unit kicked on at 159 degrees and took approx 6 min to reach 180 degrees and shut off. The temp difference is set at 170 high and 150 low w/ 10 degree variance.
I have a Beckett AFG model# EM-135 which is original from 2002.
I hope I provided enough details (not like original lost post) for you professionals to give me some ideas on where to start looking. I am pretty handy so let's get into this! Pictures are attached.
I appreciate any and all input and suggestions!! Thank you for your time and knowledge because this is one area I dont know anything about. If anyone needs particular pics please let me know and i will post.
 

Last edited by CTguy84; 10-01-19 at 10:27 PM. Reason: Posted in wrong thread - posting in correct thread - sorry
  #2  
Old 10-01-19, 10:36 PM
C
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Exclamation Water not getting hot on main and 2nd floor

Hi everyone,

Approx 3 days ago while taking my early morning shower with water temp hot as normal (also stayed hot with prolonged use) the water went cold then got warm and fluctuated + - couple degrees never getting hot again. I checked all water faucets on 2nd and main floor and none of them get hot only warm. In my fully finished basement the water gets very hot as normal. Here are some details about my home:
-built 2002
-private well water
-forced hot air and AC
-Main and upstairs living quarters approx 3775 sqft.
-4 bedroom 2 full bath upstairs
-5 rooms + powder room on main floor
-finished basement is approm 1750 sqaure feet with 1 bedroom with full bath, 3 additional room + half bath.
-Maintenance room is unfinished with oil tank, air handler for main floor of house, and boiler/furnace (dont know difference) I will be posting pictures unit.
-I was told by a friend to check the units temp guage with no water running then with water running. Read slightly under 170 then had my wife turn on upstairs bathtub on full hot. Watched the guage drop relatively quick. Unit kicked on at 159 degrees and took approx 6 min to reach 180 degrees and shut off. The temp difference is set at 170 high and 150 low w/ 10 degree variance.
I have a Beckett AFG model# EM-135 which is original from 2002.
I hope I provided enough details for you professionals to give me some ideas on where to start looking. I am pretty handy so let's get into this! Pictures are attached.
I appreciate any and all input and suggestions!! Thank you for your time and knowledge because this is one area I dont know anything about. If anyone needs particular pics please let me know and i will post.
 
Attached Images         
  #3  
Old 10-02-19, 03:50 AM
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There are 2 possible problem areas; 1) the mixing valve controlling the domestic hot water temp needs repaired or replaced and 2) the domestic coil is starting to be restricted from the lime in the water. You may need to get both items serviced.
 
  #4  
Old 10-02-19, 04:13 AM
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Is this a new issue? If yes, what changes have occurred with the furnace? If no, this is a typical occurrence with a tankless coil in the furnace. Due to crud buildup on/in the tankless coils, the heat exchange is reduced with resulting conditions you experienced. Time to have the tankless coil removed and cleaned, internally and externally.
 
  #5  
Old 10-02-19, 05:23 AM
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Yes, this is a brand new issue only a few days ago it started out of nowhere.
The coil cleaning, is this something I can do or does it require a professional? I guess I can ask google, lol. How can I check if the mixing valve is not working?
Thank you for the responses.
 
  #6  
Old 10-02-19, 06:20 AM
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You have a BOILER with a domestic hot water coil, not a furnace. I wouldn't think a DHW coil lime issue would show itself instantly like that, it would be more of a slow loss of the ability to produce hot water as it used to. I'd look very closely at the mixing valve which is right next to the power switch on the left side of the boiler. Sounds like something inside that has failed resulting in your sudden lack of hot water.
 
  #7  
Old 10-02-19, 07:02 AM
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Thank you for your response, this sounds like a professionals job.
 
 

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