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Hot water cooling off quickly #950002
12/31/18 07:47 PM
12/31/18 07:47 PM
Joined: Nov 2006
Posts: 98
Colorado Springs, CO
C
cat64 Offline OP
journeyman
cat64  Offline OP
journeyman
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Joined: Nov 2006
Posts: 98
Colorado Springs, CO
Hi! When I take a shower, the water will start cooling off after only about 7 minutes. And pretty quickly. This is after the last person that showered was about 7 hours ago with no clothes being washed. Basically no hot water usage outside some dishes. Said hot water heater is under 10 years old. Maybe seven. And 50 gallon. Oh the water at full heat can scald your hands after being on for less than 5 minutes
Thank you so much for any help. I am a homemaker with no experience fixing water heaters but I thought I’d ask to see what direction to start in.
Oh we only have the 1 shower/tub.

Re: Hot water cooling off quickly [Re: cat64] #950004
12/31/18 08:00 PM
12/31/18 08:00 PM
Joined: Jan 2004
Posts: 53,847
The Indianhead's Left Nostril....
CabinConnection Offline
Bigfoot
CabinConnection  Offline
Bigfoot
Carpal Tunnel

Joined: Jan 2004
Posts: 53,847
The Indianhead's Left Nostril....
Gas or electric?

Your water heater is too new to likely have a dip tube failure, although that's possible.

If electric, my first thought would be a bottom heating element and/or thermostat failure. Fairly easy to diagnose and repair. ---> Read this.

Re: Hot water cooling off quickly [Re: CabinConnection] #950006
12/31/18 08:18 PM
12/31/18 08:18 PM
Joined: Nov 2006
Posts: 98
Colorado Springs, CO
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cat64 Offline OP
journeyman
cat64  Offline OP
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Joined: Nov 2006
Posts: 98
Colorado Springs, CO
It’s gas

Re: Hot water cooling off quickly [Re: cat64] #950028
12/31/18 11:41 PM
12/31/18 11:41 PM
Joined: Jan 2002
Posts: 24,181
Wilmington, Delaware
Just_Bill Offline
Carpal Tunnel
Just_Bill  Offline
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Posts: 24,181
Wilmington, Delaware
10 years is easily enough time for a bad dip tube, in fact, 10 years is better than the average for a water heater failure. My guess is a dip tube. But also, has this unit been flushed often or recently, to remove sludge from the bottom? The dip tube is replaceable, and lives under the cold water inlet, available at big box and plumbing stores.. It directs cold water to the bottom of the tank, while hot is drawn off the top. A shower would start drawing from colder water being introduced farther up the tank than normal. But recovery would appear quick.

Re: Hot water cooling off quickly [Re: Just_Bill] #950123
01/04/19 12:20 AM
01/04/19 12:20 AM
Joined: May 2004
Posts: 362
Missouri USA
ballwinbill Offline
enthusiast
ballwinbill  Offline
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Joined: May 2004
Posts: 362
Missouri USA
yep, most likely the dip tube. Isn't a huge deal to put a new one in. Oftentimes, people are sold a new heater when all they need is a dip tube.

Re: Hot water cooling off quickly [Re: cat64] #950502
01/11/19 07:32 PM
01/11/19 07:32 PM
Joined: Nov 2006
Posts: 98
Colorado Springs, CO
C
cat64 Offline OP
journeyman
cat64  Offline OP
journeyman
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Joined: Nov 2006
Posts: 98
Colorado Springs, CO
Thank you all. I haven’t cleaned any sludge. I really haven’t done any maintenance on it. I thought my son was going to look at it or a friend but everyone is scared to work on it. This seems to be an intermittent thing. Does that change anything? I ask all these questions so that when I hire someone to fix it I don’t get burned like I have with my frig. I have had two people come out to fix it but both people left me with a frig that shortly after supposed repair the problem returned. I have real bad luck. Sorry for taking so long to respond and this being so long. You guys are great!

Re: Hot water cooling off quickly [Re: cat64] #950507
01/11/19 08:01 PM
01/11/19 08:01 PM
Joined: Jan 2004
Posts: 53,847
The Indianhead's Left Nostril....
CabinConnection Offline
Bigfoot
CabinConnection  Offline
Bigfoot
Carpal Tunnel

Joined: Jan 2004
Posts: 53,847
The Indianhead's Left Nostril....
Your symptom is "classic" dip tube failure, and they are inexpensive and relatively easy to change.

As I said earlier, the heater is outside of a series of years when tube failures were very widespread. But that doesn't mean it couldn't happen in your heater.




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