Sweet odor from Instant Hot (Not HW Heater) @ Kitchen Sink

We have one of those Hot water Taps at the Kitchen Sink, heats up the water on a separate spigot. It is NOT a Point Of Use Instant Hot Hot water heater.
When we use it (since we bought the house, so 4 years now) there is a somewhat sweet smell that comes from the water that comes out of it.
Does not seem to have a taste. Though we mostly use it for preheated water for boiling, or cleaning....
I have not crawled under the sink to see who makes it..
Scott<-
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Scott Townsend wrote:

Crawl under the sink and find the manufacturer and model. Lookup online for a manual and see if there is a periodic sanitizing procedure for it. Draw samples of the water from that tap and from a regular faucet and have them analyzed.
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Analyze? Its cheaper to get a new unit. I've had water tested before its not cheap. Well to get it tested right. So that's mostly why we use it mostly for boiling water... (-;
It smells the same as before we added the house filtration system.

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On Tue, 18 Mar 2008 11:16:42 -0700, "Scott Townsend"

So get it tested wrong. Around here tests are free to know if it is potable or not. And unless you are only boiling water for babies and double boilers, you are using it for food.
BTW, they might not call it one, but it really is a point of use instant hot water heater, just a very small one. :)

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I noticed something like that on one of the plastic tank ones. Call the manufacturer and ask them this question.
Bob
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In my experience, these units don't last very long to begin with. I had an Insinkerator. Just after the warranty ran out, which was maybe 2 years, the thermal high temp fuse burned out, for no reason, ie the main thermostat was working, it wasn't empty, etc. It cost me $20 for the replacement part, which consisted of a totally different bracket, fuse arrangement, etc. To me it seemed likely that they knew this was a problem and changed the design, but they made me pay for the part anyway.
And over time, the water does begin to take on some taste. It's simlar to the water from a regular hot water tank, which also doesn't taste like fresh cold tap water.
Now, at about 7 years, the Insinkerator started leaking, where the heating element goes into the plastic tank, so it's shot.
For convenience, I love these things. However, for the above reasons, they are less than idea. I guess one solution might be to put a water filter prior to the unit. Some are made that can deliver hot and cold water. With that plus a filter, you may eliminate the water odor and also get filtered water dispenser.
The other solution is to use an electric kettle that plugs in. I have one that works on a 15A outlet and is 1500watts. It heats 1.5 litres in a few mins. I start it up first, and about the time I've ground the coffee, got the French Press ready, etc, the hot water is ready. The kettle rings and shuts off when it's boiling. If you have 20A, there are models with more watts available.
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