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Topic: New Bunn sprayhead (9 msgs / 168 lines)
1) From: TFisher511
Just to keep you up to date, I have attached a copy my latest email to Bunn 
support. For those who questioned, this is a $90 home coffeemaker, not the 
commercial maker several of you use. That was probably a mistake, but I have 
consumed all of the kitchen counter space I dare and still keep my happy 
home. The commercial version is quite a bit larger.
I received the flow restrictor in the mail today and installed it as 
explained below. The problem I had with weak coffee from my original post has 
now become no more than colored water using the new part. I can now see 
depressions in the grounds where the water flowed but did not disperse them. 
I measured the water temperature from two brews, and I measured it at 180 
degrees F. 
The new Bunn is back on the shelf and I am again asking for advice. I have 
been drinking and brewing coffee for about 40 years, so this is not a 
newlywed syndrome situation we are dealing with.
Sincerely,
T. Fisher 
tfisher511
In a message dated 4/30/01 9:42:08 AM Eastern Daylight Time, 
Bunn-O-Matic_Corporation%BUNN writes:
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2) From: EuropaChris
Question:  where and how are you measuring the water temp?  In the basket during the brew cycle or in the pot right after?
If you are only getting to 180 degrees IN the brew basket using a calibrated thermometer, I'd say you have a defective unit (the thermostat is out of whack).  With the fast brew speed of a Bunn, you NEED to get the water 190 to 200 degrees or you'll never extract the coffee properly.
Chris
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3) From: TFisher511
I removed the plastic lid from the pot and let the water run over the 
thermometer. I then kept the thermometer shaft in the pot while it filled and 
didn't measure an appreciable difference. I calibrated the thermometer in 
boiling water just before brewing. 
I bought the Bunn at Target and it is the 48 ounce (8 cup) plastic GRW8 
model. It will be interesting to see what the Bunn rep has to say about the 
brewing temp, because it sounds like that may very well be my problem. 
Interesting that with the new restrictor, the brew cycle decreased from 2:15 
minutes to 2 minutes flat. That must be a reverse restrictor he sent.
No extension cord, just the short Bunn cord plugged directly into the 
countertop outlet.
Thanks for the comments and support.
Terry
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4) From: EuropaChris
Actually, 180 degrees coming out of the filter holder is pretty good.  I would guess that the water actually coming from the spray head is 190 or better.  You'll easily loose 10 to 15 degrees going through the filter basket.  It's possible that your machine runs a bit cooler, but I'd say you are in the ball park.
Chris
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5) From: Henry C. Davis
I have found with my commercial units that the stainless filter basket brews
better because it is a heat sink. More heat stays where the coffee is mixed
with the water. The plastic one does not pull much heat, so the stuff
exiting the hole should be pretty close to what is in the basket. 180 is too
low (IMHO, of course) and I am betting it isn't much hotter in the basket
itself. Since the basket seals fairly well against the underside of the
panel housing the spray head, you don't lose much heat to side stream or top
venting. (compared to  a mister coffee or a silex run of the mill drip unit)
If there is a way to turn up the thermostat on the heat unit, I would crank
it up a notch or two and try again.

6) From: Monty Harris
While you are on the phone with Bunn ask them if your serial# has the
updated water tray and seals that don't deteriorate and start leaking after
a few years.
A common problem with some GRW8 models.  If it's one that has been sitting
on the shelf a while you may have one of the bad ones.
Monty
At 07:17 PM 5/3/01 EDT, you wrote:
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7) From: Monty Harris
Terry,
You should be able to tell which head will pass more water by looking at
the number and size of the holes in the head.  If I remember there is also
a number on the head (at least on the commercial ones).
Monty
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8) From: TFisher511
AH, a wise Monty. You knew they would have me call and that is exactly what 
Bunn requested. I'll have to try to work it in over lunch because their hours 
are the same as mine (only shorter). 
The label on the bottom says it is a date code, but that code is 290501 and I 
am familiar with that date coding system. I will be certain to ask about the 
updates.
Thanks for the tip,
Terry
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9) From: TFisher511
AH, a wise Monty. You knew they would have me call and that is exactly what 
Bunn requested. I'll have to try to work it in over lunch because their hours 
are the same as mine (only shorter). 
The label on the bottom says it is a date code, but that code is 290501 and I 
am familiar with that date coding system. I will be certain to ask about the 
updates.
Thanks for the tip,
Terry
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