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Old 10-31-2014, 04:38 PM   #21
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I agree with folks above, although we don't have a tankless water heater in our RV, we have had them in our house for many years, and they never fail to deliver water at a comfortable hot temperature continuously.

It definitely sounds like the cycling indicates either an adjustment needed or a repair.
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Old 10-31-2014, 07:14 PM   #22
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Originally Posted by D&MAKAFUN View Post
From a piece/part that has malfunctioned (Girard has been very responsive in sending replacement parts) to walking people through how to find the elusive "reset" button.
I also had to call Girard when my tankless WH stopped working. As others have noted, their support is excellent. And the location of the secret reset button is shown here to save others from having to call.
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Old 11-01-2014, 10:48 AM   #23
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I appreciate bgermane, MitchMitchell and NC Roamer and others for adding their positive input into what has become a very lively topic with many threads.
Often times a thread can be diverted into one of nothing but negative comments and frustrations.
With positive reinforcement and comments we can help those who are having difficulties with their products and give them hope.
We can all help educate and inform.
Have a great weekend,
Darrell
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Old 11-10-2014, 10:38 AM   #24
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Jayco will replace the tank-less unit with a DSI gas electric tank unit under warranty. I complained to Jayco because my babies got scalded when the tank-less unit high limited. I turned off the valve on the wand in the shower when i turned it back on it was still warm - not hot so i started rinsing off my baby and then it shot up to about 190 F or so and started scalding the baby. Then the water went to ice cold. I complained to Jayco and they replaced the tank-less setup with a regular tank. This is a serious safety issue if you have small children. According to Girard the tank-less heater was in fact working correctly it "limits out" at a specific temperature. There is no thermostatic control on the output of the unit to dynamically regulate the output temperature. Home tank-less units are designed to keep a temperature set point and will adjust the flame to achieve this. The Girard units have a manual flame adjustment and as the flow drops they will either cycle hot cold due to limiting out or shut off altogether. The user must manually adjust the flame to achieve the correct temperature rise based on the input water temperature. If you are careful and open the faucet fully, set the correct flame and do not turn off the water during the shower or anticipate the scalding hot followed by cold if you do then the system can work well.
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Old 11-10-2014, 11:01 AM   #25
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Woah, that means I sure won't be considering a Girard tankless water heater in my trailer!
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Old 11-10-2014, 11:41 AM   #26
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Girard actually states that you should not turn the water of during a shower. Not ideal if you do a lot of drycamping. We don't, so it works well for us. When we do, we have all learned to anticipate that temp spike, and hold then water away from us until it evens out.
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Old 11-10-2014, 11:50 AM   #27
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Girard actually states that you should not turn the water of during a shower. Not ideal if you do a lot of drycamping. We don't, so it works well for us. When we do, we have all learned to anticipate that temp spike, and hold then water away from us until it evens out.
100% correct! We dry camp a lot with a 32 gallon fresh water tank that is a major issue for us.
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Old 11-10-2014, 11:56 AM   #28
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That is completely different from how our house water heaters work, without the thermostatic control of the flame that behavior is understandable but disappointing.
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Old 11-10-2014, 12:17 PM   #29
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I have had the same problem with mine. What the dealer is telling me is that the way these things make hotter water at a lower volume. Instead of turning the hot all the way on turn it half-way. I have an adjustment for the water temperature in my bathroom, not sure this is standard. I have not tried this approach so I don't know if it will really work.
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Old 11-10-2014, 12:42 PM   #30
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I have had the same problem with mine. What the dealer is telling me is that the way these things make hotter water at a lower volume. Instead of turning the hot all the way on turn it half-way. I have an adjustment for the water temperature in my bathroom, not sure this is standard. I have not tried this approach so I don't know if it will really work.
The dealer is correct that at a lower volume the water is hotter. The reason for this is due to the fixed flame height set by the dial in the bathroom. The slower the water flows through the heat exchanger the hotter it gets. Conversely the faster it flows the cooler it is. The real solution to this type of issue is to put a multi state continuous thermostat on the output side of the water heater that is wired to the flame adjustment if the flow slows down and the water temperature rises then the thermostat should reduce the flame height accordingly. Then the user would simply need to set the temperature desired and the unit would output that temperature regardless of the input water temperature pressure or volume. I actually considered doing this myself had Jayco not replaced the tankless heater with a standard DSI gas electric one.
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