T
toysareforboys
Guest
We had our failed electric water heater replaced with a Rheem RTGH-84DVLN Tankless water heater a few weeks ago. Couple of issues with it but the main one is:
When the hot water heater is at rest and even a tiny amount of hot water is requested the hot water heater starts on its highest setting. This is very loud (the hot water heater is located in a noise sensitive area), and a waste of gas and electricity and wear and tear on the machine. When it switches from the highest mode to the lowest mode there is a big air pressure change inside the tankless cabinet which causes the poor quality/flimsy front cover to do a big flex and give out an all mighty THUMP.
It wouldn't annoy me so much except that for some reason when any toilet in the house gets flushed it triggers the water heater to fire up! IN HIGH mode, THUMP, low mode, off, all in the period of 3 or 4 seconds. What a waste.
I called Rheem tech support at 800-432-8373 and spoke with a "senior" technician and he laughed when I asked if we could make it start in the lowest mode. "But it would take an extra few seconds to get the full hot water out of your taps! Why would you want that?". After that he didn't seem very helpful and just said "Nope, can't change that, always starts at 100%." Yay.
There's eight dip switches in this beast and I only know what one of them is for (DIP1#4 to unlock 140f max temp output setting).
So..... Anyone know what the rest of the dip switches are for? Ideally I would like to DELAY the activation of it by 1 or 2 seconds (to stop the toilet flushes from activating it) as well as make it start always on the lowest mode (i.e. be less aggressive trying to heat the water quickly).
Thank you for any help or advice you can provide.
-Jamie M.
When the hot water heater is at rest and even a tiny amount of hot water is requested the hot water heater starts on its highest setting. This is very loud (the hot water heater is located in a noise sensitive area), and a waste of gas and electricity and wear and tear on the machine. When it switches from the highest mode to the lowest mode there is a big air pressure change inside the tankless cabinet which causes the poor quality/flimsy front cover to do a big flex and give out an all mighty THUMP.
It wouldn't annoy me so much except that for some reason when any toilet in the house gets flushed it triggers the water heater to fire up! IN HIGH mode, THUMP, low mode, off, all in the period of 3 or 4 seconds. What a waste.
I called Rheem tech support at 800-432-8373 and spoke with a "senior" technician and he laughed when I asked if we could make it start in the lowest mode. "But it would take an extra few seconds to get the full hot water out of your taps! Why would you want that?". After that he didn't seem very helpful and just said "Nope, can't change that, always starts at 100%." Yay.
There's eight dip switches in this beast and I only know what one of them is for (DIP1#4 to unlock 140f max temp output setting).
So..... Anyone know what the rest of the dip switches are for? Ideally I would like to DELAY the activation of it by 1 or 2 seconds (to stop the toilet flushes from activating it) as well as make it start always on the lowest mode (i.e. be less aggressive trying to heat the water quickly).
Thank you for any help or advice you can provide.
-Jamie M.