jfleming
Oxford Michigan
New Member
Joined: 06/26/2008
View Profile
 Offline
|
Can someone break down the sequence of operation on how these two devices work into the picture of the hot water heater shutting off?
I replace my tank and got everthing hooked back up and working again, however it seems that the hot water heater never shuts off.
Do I have to pull the tank back out to replace these two devices?
1993 Tiogao 30'
thanks
|
javaseuf
Southern Cal
Senior Member
Joined: 03/30/2005
View Profile
|
The thermostat will limit the water temperature to 140 degrees. If the thermostat mal-functions, the ECO takes over and then will open at 180 degrees to shut-off the power.
What makes you think that the heater is running too long?
It will take a good 45 minutes to heat 6 gallons of cold water to temperature.
Also, if the water heater overheats, the pressure/temperature safety valve would open in the outside compartment.
These two sensors are wired in series with the power going to the control board.
Steve
2007 Springdale 291RKL
2003 F150 King Ranch
2001 Dodge Van w/Wheelchair Ramp
1991 Palomino Mustang PUP
Eureka Timberline Tent
Yamaha IF2400isc
Yamaha EF3000iSEBC
"Politically Incorrect And Proud Of It" 
|
heavyequiptmentmover
Huntington Station ,New York
Full Member
Joined: 01/29/2005
View Profile
|
What does the abbreviation ECO stand for.
|
javaseuf
Southern Cal
Senior Member
Joined: 03/30/2005
View Profile
|
heavyequiptmentmover wrote:What does the abbreviation ECO stand for.
I am guessing Emergency Cut-Off.
|
jbbrick
Northern Calif
Senior Member
Joined: 02/25/2002
View Profile
Offline
|
My understanding was it stands for high energy cutoff, or just energy cutoff. They usually have to be replaced when they trip though some units have a reset switch. I'm thinking of getting the adjustable stat for mine, the hw on the fixed ones is so hot, you can't put your hands under it. I know they make it that way so you don't use up all of your 6 gallons, but its just too hot most of the time. And we rarely shower in the unit anyway.
|
|
|
javaseuf
Southern Cal
Senior Member
Joined: 03/30/2005
View Profile
|
jbbrick wrote:My understanding was it stands for high energy cutoff, or just energy cutoff. They usually have to be replaced when they trip though some units have a reset switch. I'm thinking of getting the adjustable stat for mine, the hw on the fixed ones is so hot, you can't put your hands under it. I know they make it that way so you don't use up all of your 6 gallons, but its just too hot most of the time. And we rarely shower in the unit anyway.
The one on the Atwood needs to be replaced but the ones on the Suburban automatically re-set. They are Klixon temp stats.
|
99damon
Colorado
Full Member
Joined: 09/20/2007
View Profile
Offline
|
J -- Just a thought, but if you replaced only the tank and kept/recycled everything else, did you get the thermostat and ECO properly reinstalled? If they aren't snug against the tank, they won't know when it's time to cut out. As far as knowing when hot is too hot, those cook's food thermostats are pretty cheap. Pour a cup of hot water, stick it in, and see if you're somewhere in the neighborhood of 120 - 130 degrees at the nearest hot water faucet.
If you have an Atwood, there's no need to remove the WH to check thermostat and ECO placement, they're visible with the outside hatch open. Don't know about other brands.
Wayne
Fulltimers
1999 Damon Intruder 341
|
Dusty R
Charlotte Michigan 48813
Senior Member
Joined: 04/05/2003
View Profile
Offline
|
I changed to an adjustable one. I quit while on the road on a 6 week trip. We were lucky in that I had left the old one laying there, so I reinstalled it. I had it turned all the way down, you could wash your hands without adding cold water, I needed to add a little cold taking a shower but never ran out of hot water taking a shower. Sometimes I would start my shower before the water shut off and the water would be hotter when done than it was when I started.
I've got a new one that I need to get installed.
|
