Question about Bunn CDBC 35 Coffee Maker

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My hot water spigot no longer works. Is this caused by a build-up of sediment from our years of heavy use, or it is time to upgrade?

We've had a refurbished machine since 2002, the coffee brewing is still fine, but no water whatsoever comes out of the spigot.

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It sounds like this is a constant use item, and you do not have the time to descale it. If you have the time, you may want to try to descale the sediment using citric acid or white vinegar. This will dissolve the scale, and after awhile you could soon get water through the spout. Here is a link to the manual:
http://www.bunn.com/sites/default/files/discontinued_manuals/35582.0000.pdf

Posted on Apr 17, 2015

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1 Answer

Water not hotting green light comes on and when open valves fully no hot water


Dear Clement,
Here is how to check this.
Turn off the hot water spigot that feeds the hot water to your machine.
Unfasten the hose at the wall, and have some rags handy to catch the escaping water.
There should be about 1/2 cup.
Attach a garden hose to the spigot and run it somewhere that can catch the water., like outside, or in a bathtub or in a sink.
Turn the water on at the spigot and see if it is hot, and if there is a lot of water flowing.'
If there is not, you are having a problem with your water heater.
If there is, next take the water hose off the back of the washer, and inspect both ends of the hose.
One may have a screen in it that is plugged up with sediment.
If so l, clean it out or replace it, (or discard it if you must).
Also check inside the hot water port in the back of the machine for a plugged filter screen.
God bless your efforts.

Mar 20, 2017 | Washing Machines

2 Answers

How and where does the water go in


The cold water enters the top, but the water is not released into tank at the top. The cold water goes through a "dip tube" This takes the cold water to the bottom of the tank. If you dip tube fails, or breaks, your faucet temperature will slowly drop as you use hot water (vs giving you 60% of tank at full temperature before temperature starts dropping) In normal operation, the cold water is released near bottom of tank, the hot water rises to top, and comes out of the top of the tank.

Jan 27, 2015 | Water Water Heaters

1 Answer

I have a 1991 40 gl and it fell through the floor which is like 2 ft off the ground. turned the water off and replaced the pipes it has its own lever type power supply with the screw in fuses 30 amp (2) of...


You have 2 problems with several possible causes:
You have 10-year-old electric water heater that was reinstalled after falling down, and doesn't heat the water.
And you have no hot or cold water pressure, and no pipes are leaking.

1) First problem is lack of water pressure throughout house.
Turn on outdoor spigot nearest to water meter.
This spigot will tell you if problem is inside the house or between the house and meter.
If spigot runs full force, then you probably have clogged pipe where water heater connects to main cold line, or the main shut off valve got clogged with sediment that broke off inside the pipe when you were working on water heater.
Open and close shut off valve to see if that helps. Then disassemble pipes and track back the problem. Put pressure gauge on water heater drain valve to watch pressure drop when turning on indoor faucet.
Read following information:
http://waterheatertimer.org/Low-hot-water-pressure.html

Water heater doesn't work:
Test across wires at top of heater to see if you are getting correct voltage:
If tank is receiving correct voltage, then no hot water puts suspicion on upper element or upper thermostat, or both.
Open following link for electric water heater troubleshoot steps:
http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html

Jul 30, 2011 | RELIANCE ELECTRIC WATER HEATER

1 Answer

We have a rheem hot water heater selfkleen. Does that mean that it never needs to be flushed out for sediment?


The way it is designed on the water inlet it is supposed to cause the water to swirl around the tank wall to help keep sediment from building up. I would still recommend draining and flushing every couple of years if your water has a very high mineral content. Thank you.

Jul 25, 2011 | Rheem 65 GAL ELEC Water Heater 6YR Self...

1 Answer

No hot water, checked ohms on both heat elements,top is 13.8 bottom is 13.4. i have 122volts to both elements and i played around with the heat adjustment on both top and bottom. over time could rusty well...


Marathon elements are specific to that water heater and can be ordered online, but generally are not at the local hardware.
Good to keep a couple spares around.
Marathon is 240Volt water heater.
Thermostats turn off one leg of the 240Volt circuit, so elements and themostats will always test for 120volts.
You removed wires off elements and tested each for continuity and tests showed elements to be good.
Test top two screws of upper thermostat and make sure you are getting 240V to the water heater.

If water heater has some hot water, then that says water heater is getting 240V, upper element is good, and remaining suspects are bad thermostats, bad lower element, or sediment build-up, or combination.

Open following link for troubleshoot run-down:
http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html

Water well.
If you have sediment build-up that reaches lower element, then water does not circulate around the element and water heater no longer heats very fast or accurately. If sediment is the problem, sooner or later the lower element will burn out.
Doesn't hurt to flush out the tank now and then, and vacuum out the sediment if that is problem.
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html

Jul 10, 2011 | Rheem MR105245 Marathon Electric Water...

1 Answer

When hot tap is turned on there is a banking noise from boiler.Have had new pump fitted and have domestic hot water and central heating.Noise continues, but not as bad as before.When heating switches on...


try by draining tank. it may have sediment build up in it. heres how. go to www.ehow.com/how_5544402_drain-hot-water-tank.html this site will explain it better. have a good day! Sediment can drift into recirculation lines, jam open check valves, and cause the recirc pump to stick until it burns out. it causes noise, sometimes enough noise to annoy, or even frighten, people if the tank is inside a dwelling. The noise is caused by small amounts of water under the sediment layer turning to steam bubbles, which then collapse violently.

Feb 18, 2011 | Water Heaters

1 Answer

I have a hotpoint hot water heater it's about 6 years old. When I turn the hot water on it runs very slowly the water pressure is very low and it's like this throughout the house how do I fix this problem...


You have clog in the water line.
Since all hot water pipes are involved, clog is probably near water heater.

Buy pressure gauge at hardware store that threads onto hose connection.
Brady BTG 100 at Amazon
Picture of gauge

Check outdoor pressure for baseline pressure in your home.
Turn off electricity to hot water heater for an hour or two so there is not scalding water.
Open drain valve on water heater to see if water heater is clogged with sediment.
http://waterheatertimer.org/Water-heater-will-not-drain.html

Put pressure gauge on drain valve and compare with outside pressure.
Open hot water spigot on bathtub and see if tank pressure drops ... if tank pressure drops significantly with bathtub spigot on, then clog is on incoming cold water before tank, and could be on outgoing hot water pipes too.
If tank pressure stays about the same, then clog is on outgoing hot water pipes.

Clog can be sediment caught in cold water shut off valve located above tank. Open and close valve and test pressure again. Take apart incoming cold water pipes above tank and check for sediment. Replace valve. Look at condition of cold water nipple on top of tank.

Sediment caught at hot water elbow near tank.
Sediment can fill up old pipes. Take apart hot water pipes above water heater and see condition.
Look at condition of hot water nipple on top of tank.
You may have to take apart pipes up to first or second elbow.

Pipes can decay at joint where copper pipe connects to galvanized pipe. Check for copper to galvanized connections on cold or hot pipes and replace section of galvanized pipe. Copper pipe will probably be good, the galvanized pipe will deteriorate. Replace copper-to-galvanized joint with 3/4" non-conducting union from hardware store

Dec 06, 2010 | Water Heaters

1 Answer

What cause the water heater to take more than an hour to heated up and unable to last longer. Usually its take about 15 min. to heat up and can last longer.


'Rheem 81VP15S point of use' is a single-element, 15 gallon, 120V electric.
Other 'point-of-use' sizes range from 2-1/2 to 6 gallon to 20 gallon.

Electric water heaters have 2 parts: thermostat and element. One is not functioning correctly. Most likely the element caused by sediment build-up.

How to determine if tank has element or thermostat problem:
Do not turn off water going into tank. Put hose on drain valve. Open drain valve. Does water come out like open spigot? If water does not flow, then heater is likely clogged with sediment.

Solution 1: If water flows out like a spigot, the thermostat is probably bad. Read: How to replace thermostat.

Solution 2: Water does not flow, so element is surrounded by sediment build-up and cannot heat water. You need to clean out tank with shop vac, and put in new element ... plan full day and 3 trips to hardware store. Simply draining tank will not remove sediment. Sediment is chunky and will not come out voluntarily.

Buy element before starting:
-Turn off electricity
-Open cover on side of tank, remove insulation (these have to be put back for proper operation of thermostat)
-The are 2 electrical parts >>the element and the thermostat which is located above element
-Element wattage is printed on element and also shows on label on side of tank
-I think Rheem element is held in place with 4 hex bolts
-Take photo of element to hardware store so you have part on hand before removing old element
-If element is 1-1/2' diameter hex type, you need inexpensive element wrench from hardware store + the element

Drain tank and clean sediment:
-Read: To open drain on water heater so water comes out
-Read: How to clean sediment out of water heater

Sep 29, 2010 | Rheem 81VP15S Point-of-Use Electric Water...

1 Answer

Should I drain and ?clean? out the water heater...13+ years.. model pgcs 50 102H It runs out of hot water increasingly quicker


I assume your is an electric hot water heater. Is your water "hard" in your area? If so, it would be worth a try. What usually happens in a heater your age is that sediment builds up causing the lower element to overheat and burnout, causing less hot water to be produced

Mar 03, 2010 | Water Heaters

1 Answer

Sediment in hot water


With Rheem you have to back to the installer.Most of the heater have ten year warrany.

Mar 15, 2009 | Rheem 40 Gallon FVR NATGAS Low WATER...

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