Question about Rheem RTG-95DVLP Low Nox Direct Vent Tankless Water Heater Liquid Propane 9.5 GPM

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No power to unit

Been working good for 11 months then all the sudden, no power to unit. breakers look good and no trips. no red lights on remote or inside box.

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Copy following link for tankless troubleshoot resources:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html#fuse
Tankless are not protected from surge, but there is a 3-5 amp glass fuse located on circuit board.
Check outlet with circuit analyzer, and multimeter

Posted on Apr 29, 2013

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Plugged in ana exxternal water heater and none of the breakers flipped but now our plugg ins are not working what coud be the problem


There may be a ground fault interrupter duplex plug in unit that has tripped. They are often placed as the first plug in in a circuit and therefore they protect plug ins "downstream" from the breaker box. It may be located some distance away from your recognized problem plug in. Some of them still work themselves, but still shut off power beyond. There should be a reset button on the unit.

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Rheem rte13 standby (green) light not on


You might have crossover problem caused by bad faucet cartridge.
http://waterheatertimer.org/Crossover.html

The green standby light should come on when 240Volt power is applied. Page 6 manual.
Both red lights should come on when tankless is activated. Page 6 manual

RTE 13 requires 60 amp breaker and 6 gauge wire
http://waterheatertimer.org/How-to-wire-Tankless-electric-water-heater.html
http://waterheatertimer.org/pdf/Rheem-TanklessElectricUC_AP15447.pdf

Factory temperature setting is usually default 120 degrees.
Adjust temps page 11 manual
Thermostat calibration is always approximate.
120 degrees is not hot enough to burn the skin.
Exceptionally cold incoming water temperature can cause tankless not to heat enough hot water: install tempering tank to preheat water to room temperature.
Tankless cannot be exposed to more than 11 grains hardness in water. Delime tankless yearly, clean water filter monthly, do not install low-flow restrictions or conserve water since the flow rate must remain high for tankless to activate.
Rheem does not post service manuals for their tankless water heaters.
Call Rheem 800 432-8373

Aug 05, 2012 | Rheem Tankless Hot Water Heater...

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The tankless water heater was working this morning, but now it seems no power is going to it. We've checked the circuit breaker several times but it doesn't seem to want to reset. Is there a fuse that...


If the circuit breaker will not reset it could be a few different things. First, circuit breakers do wear out. The bi-metal strip that makes the breaker function does break down metallurgy wise. A new one would have to be installed to fix this problem. The other possibility would be that a wire inside the water heater has grounded out thus not allowing the breaker to reset. A wire might have gotten to hot and the insulation around it might have melted or became brittle and fell off allowing the wire to touch bare metal inside the water heater.

May 02, 2011 | Stiebel Eltron TEMPRA 24 Tankless Water...

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Fri. I get home from work and wife says no hot water. I tripped the breaker and still no hot water. I then replace the breaker and still no hot water. I'm thinking I have a power problem between the...


Check to see if there is a GFI outlet in the house or garage. Reset if tripped. My wife would trip the GFI in the garage when she used the hair dryer in upstairs bathroom.

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One of the breakers assigned to our Hot wtr htr has been tripping recently leading to loss of hot water. This has happened twice in the last month. After resetting the breaker things have worked fine,...


Breaker could be bad.
Let's do a quick check and save you money.
Open top cover on water heater and push in red reset button that might be tripped.
If reset is tripped, water heater should turn ON.
If reset will not reset, then replace upper thermostat:
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
If reset is not tripped out, then it is OK, so test two top wires on upper thermostat.
Use cheap multimeter from home center, and set dial to 240-250-277 VAC.
Test across top two screws on upper thermostat to see if you have 240Volts.
To do full troubleshoot on ordinary tank electric water heater takes 30 minutes and multimeter
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

If water heater is not receiving 240V, then the breaker is suspect, or a wire between breaker and water heater is loose.
See basic water heater circuit
http://waterheatertimer.org/240-v-water-heater-circuit.html

Now let's look at circuit breaker:
Mark suspect 240V breaker.
Identify all your breakers, and also mark another 240 Volt breaker that is same amperage as water heater 240V breaker.
Turn off main breaker.
Take front panel off breaker box.
The wires and lugs on main breaker are HOT, so stay away from that area.
http://waterheatertimer.org/See-inside-main-breaker-box.html
Suspect breaker has 2 wires coming from breaker.
See if one or both wires are loose, and then tighten.

If wires are tight, then move these wires to the other 240V breaker that is rated for same amps as water heater.
Now turn on main breaker.
Put ear against water heater tank to hear bubbly fizzing sound.
This will identify if circuit breaker is bad, or if water heater needs a full troubleshoot.
It is not a good idea to run two 240V appliances on same 240V circuit breaker, so you may have to decide one or the other appliance until you can replace breaker.
Instructions to replace circuit breaker:
http://waterheatertimer.org/How-to-replace-circuit-breaker.html

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, fixya expert speaks with you over phone while you work on water heater circuit.

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My Lian tankless electric water heater has shut


there could be a ground fault recepticle between panel and unit.[might be tripped] or there mustbe reset on unit. no led on unit usually means no power.

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Stiebel Eltron tankless 24. Problem:No hot water.Tempature display dead.Single LED on right side comes on when cold water flows thru system.Have cleaned fine mesh input filter.No pressure problems. CCt...


Take off front cover, on the top of the two cylinders in there (the heating system) there will be a small red button. That is the Safety Thermal Cut out, depress that red button. It is similar to a circuit breaker. If the red LED comes on when you turn on hot water at a sink then that was the problem. I have on that trips periodically. Its annoying but not enough to replace the part yet. Good luck.

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I had the same problem with the Stiebel Eltron Tempura 24. Right side unit worked (with blinking LED), but the display and left side (including LED) did not work.

This is CRITICAL. Do not take the cover off unless you have turned off circuit breakers at the circuit breaker panel AND tested that there is no power. There is a lot of voltage/ampreage here and it could be life threatening if you get shocked. Call an electrician (or a plumber) if you don't know what you are doing.

My problem was solved by resetting the safety thermal cutout switch on top of the non working unit (red single press thermistor). See this manual http://www.stiebel-eltron-usa.com/pdf/install_tempra.pdf page 8.

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