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Eternal GU-195S Hybrid water heater

I have an Eternal GU 195 S Hybrid water heater ( http://www.eternalwaterheater.com/products.html ). It will heat up the water that's in the tank ( so when I draw the water, the hot water will come out ) but it will not heat up the water on-demand. So after a minute of drawing, the water will turn cold and give E02 error which I read on the Net is related to either thermocouple or gas head. But the water DOES get heat up if I let go of drawing and let it fill up, it will heat up what's in there the next time around. So I will draw one time, let it sit for half hour and then draw again, it will heat up the water in the reserve tank. Any suggestion what to do? Thanks.

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  • Water Heaters Master
  • 5,245 Answers

Is this new installation? Or old installation that stopped working?
Here's the 100% solution. And it applies to all brands, models, types, of tankless water heater, no matter which error code:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html
People should avoid complicated water heaters that claim 'energy star' and '98% efficiency' while proclaiming 'endless hot water' as if the laws of physics, economics and common sense can suddenly be suspended if only the customer would buy expensive, complicated water heater that cannot be maintained or repaired by customer, and there are no qualified technicians who live in your area.
Otherwise you need a service manual, or contact eternal manufacturer. 1-866-946-1096
http://eternalwaterheater.com/pdf/downloads/GU100.pdf
Error E02 does not show in manual.
E2 is ignition failure, which on other brands can be failed PC board... and inadequate incoming air supply, or venting, or failed sensor, dirty combustion parts, air or water in gas line, low gas pressure, wrong gas, etc, or multiples from list above.

Posted on May 10, 2013

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6 Suggested Answers

6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya Repairman can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Repairman (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

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Da Brain
  • 11 Answers

SOURCE: On demand, tank less water heater

THE WATER IS RECIRCULATING IN THE UNIT. MAYBE CAUSED BY THE ACID. TRY INSTALLING A BACK FLOW PREVENTER

Posted on Oct 27, 2008

  • 234 Answers

SOURCE: My Rinnai R94 LSi stops sending hot water

II would think that the unit is going out on hil imit because there is not enough psi on the water coming in.Is this unit on well water or city?If it on well water you have run some cleaner in it every six months.L on the side of the heat or inside and there a toll free number to call talk to a tech.

Posted on Mar 15, 2009

  • 1 Answer

SOURCE: noritz tankless water heater gives error code 11

This worked for me in the same situation. There is a filter inserted into main gas/ water control valve that senses water flow restriction. The sensor is connected to the gas valve. If it senses inadequate water flow it tells the gas valve to shut down so the water in the heater won't boil. Very expensive part. If you do find the filter clogged, a sediment water filter shoud be install on the inlet side of the water piping.

Posted on Oct 13, 2009

mrhotandcold
  • 248 Answers

SOURCE: rheem tankless water heater error code C4 13??

check diaphrapm valve or micro/switch best of luck

Posted on Oct 31, 2009

john224
  • 1378 Answers

SOURCE: Natural gas hot water heater not stying lit

Probably a bad solenoid in the gas valve. Higher voltage of a new thermocouple keeps it open longer but it still fails over a period of time. Look into a new gas valve for the water heater.

Posted on Dec 17, 2009

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Hybrid or heat pump type computer water heaters must have condensate drain connected to catch pan located just above storage tank and below compressor. Condensation can form on condenser coils and drip into catch pan where there is primary and secondary drain
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High limit switch gas hot water giant


Tank-type Gas water heater: high limit can the FV system, the ECO-TCO reset located on front of combustion chamber, or the one-time-use ECO located in the gas control valve thermostat probe.
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html
http://waterheatertimer.org/images/Whirlpool-Resettable-ECO-20.jpg
http://waterheatertimer.org/images/Gas-valve-ECO-124.jpg

Tank-type electric water heater has a reset button:
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Install problems ge hybrid water heater


1) Copy following links for detailed resources:
http://waterheatertimer.org/Review-GE-Heat-Pump-water-heater.html#error
http://waterheatertimer.org/GE-heat-pump-manuals-by-date.html

2) T2 is tank temperature sensor failure located just above upper element.
Call for service/ warranty.
Call GE 888-433-4394

3) Was water heater completely full of water before applying power.
Do you have 10 gauge wire and 30 amp breaker.
Is unit receiving 208-240 Volt power. Click breaker fully on-off.
Move wire to another same size circuit breaker.

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Keep getting a f9 and f10 code . how do we fix what do they mean


1) F9 and F10 appear to be element failure/ Call for service
http://waterheatertimer.org/Review-GE-Heat-Pump-water-heater.html#error
http://waterheatertimer.org/Review-GE-Heat-Pump-water-heater.html#element

2) Copy following link for more GE Hybrid Geospring resources:
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3) Call GE and they will tell you to call for service:
1-888-443-4394

4) 2009 service manual says you can clear fault codes by pressing Filter, Lock, Vacation button sequentially within 3 seconds. Scroll to clear all fault codes using arrow keys. When that is highlighted, press Filter, Lock, Vacation again.
Others report this does not work, so it may depend on model. Or maybe buttons need to be pressed simultaneously.

5) GE does not want folks working on their own water heater.
Do not buy expensive water heaters you cannot fix yourself.
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1 Answer

The water want stay hot very long


You have electric water heater.
Electric water heaters are fully repairable by homeowner, excluding hybrid type.

Rheem electric water heaters:
http://www.rheem.com/products/tank_water_heaters/electric_water_heaters/
Rheem fury series manuals and models
http://www.rheem.com/product.aspx?id=09DF2BDD-5E11-4D32-B574-84ACFB8A4619

Age of Rheem
water heater is first 4 digits of serial number located on side of tank: for example 0705 means July 2005.
Serial number also shows model number & wattage of elements.

A) If your water heater receives very cold incoming water, it may not heat fast enough to keep tank warm.
Add a tempering tank.
http://waterheatertimer.org/Tempering-tank.html
Add insulation over entire water heater except TP valve. Insulate pipes completely.
Read more information:
http://waterheatertimer.org/9-ways-to-save-with-water-heater.html

B) If cold outside temperatures are not to blame, your water heater may have a bad thermostat or bad lower element.

C) 40 or 50 gallon water heater is 240Volts and tank will have 2 access panels on front.
Rheem ships all water heaters with 4500 Watt elements.

Narrow down the suspects:
D) Water heater has some hot water.
This tells us upper element is working.
And that water heater electricity is working.
And that reset button is not tripped.
And that heater is not experiencing run-away overheating event.

That gives us 3 solid suspects.
1) lower element is burned out. Test lower element using inexpensive multi-meter from Home Depot.
http://waterheatertimer.org/How-to-test-water-heater-element.html
Replace element with same wattage shown on label, and clean out sediment:
This will restore water heater to full 99% efficiency.
http://waterheatertimer.org/How-to-clean-sediment-out-of-electric-water-heater.html
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html

2) Upper or lower thermostat is bad. Replace both thermostats for about $25.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
If you want to test thermostats and all parts before replacing anything:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

3) Burned or shorted wire. Turn off power. Open covers on side of tank. Remove insulation. Inspect parts for signs of high heat and burning. Especially lower element. Tighten any loose wires. Replace part that shows signs of burning.
Put insulation and cover back over thermostats so cooler outside temperature doesn't cause thermostat to misread tank temperature.
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