Question about Coleman 805D712T

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Coleman a/c I have a coleman a/c unit for a camper. The problem is i can get a swith for it. The switch has 4 positions and a off position. Fan on high and low only and it also controls the a/c on max or normal. The wire that come off the switch is 1 black, 1 red, 1 blue, and 2 orange. I know one of the orange wires come off the thermistat. What kind of switch or switchs will i need to make the a/c work and also just the fan to work. I need to know what wires need to be hooked up to what. Thanks for your help Jason.

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Re: coleman a/c

Black= power wire - red= power wire+ blue= a/c control orange#1= thermo orange#2= common

Posted on Dec 13, 2007

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When the brew unit open to put the waste into the container, this part of the unit stay open

OK I had this precise problem .. initially I got F73 occasionally and then increasingly more frequently over about a 2 week period. When the error comes up the first problem is that you cannot remove the Brew Unit. The Correct procedure is to enter Service Mode and then you have the option of resetting the position of the Brew Unit. For instructions on this consult the Service Manual which is available online for free ... just search for 'CVA4070 Technical Information'.

Now in terms of what can cause this (as the manual does not explain the reason for the fault in my case) ... at first I thought it was the Brew Unit getting sticky and thus too hard for the motor to return the unit to its home position. The motor is actually very strong due to internal gearing and this is unlikely to be the problem unless it's very stiff. In my case it turned out to be one of the two reed switches on the back of the motor drive was very slightly worn (it wears out because it drags on a cam) and this prevented the motor drive from stopping at precisely the right position during the sequence. This then resulted in the machine getting confused about what state the brew unit is in and so it says F73 . The two reed switches that control the Motor drive are accessible from rear of machine by removing the black cover of the motor drive. I can't recall which one was at fault for me .. but if you operate the machine with the motor drive cover off ... and then reproduce F73 ... you can actually see that it has not stopped in the right place on the reed switch and then you can work out which reed switch is causing the problem (also refer to manual which has a good explanation of states). There are two other read switches in the machine of the same type and these are not critical in terms of the wear issue so you can swap these over for the brew unit ones. Alternately you can buy new ones. It's a simple job just to replace them and the Miele service person would probably do it in 10 minutes. Now problem is fixed.

Now if you're doing this yourself ... you should also do some servicing at the same time;

1. Apply grease to the cam that controls the reed switches (this will prevent wear of the reed switch buttons).

2. On the back of the Brew Unit at the top .. there is lever that has ridges on it that activates one of the other reed switches (grinding amount compensation). Apply grease to this. (This can also stop an annoying clicking sound each time you brew coffee).

3. Apply grease to O-ring on the spout of the coffee on inside of door

4. Clean back of machine with vacuum cleaner and then with warm water .. it get fairly dirty. You can take pieces off to clean more thoroughly

5. If your technically skilled .. remove the Brew Unit Drive .. disassemble, clean & re-grease. After 5 years or so its gets dry and you do not want to have to replace this unit. WARNING: Note position of cogs and the cam before you disassemble (ie take pictures) and make sure you put it back in the same way. I did not do this and I broke the plastic cam .. which is designed as a weak link so that metal gears inside motor and brew unit drive are damaged.

Finally ... coffee machines are high maintenance and even Miele ones break-down. Miele spare part prices are very high but what I like about this machine is that it is designed to be serviced.

Oct 29, 2012 | Miele CVA4070 Coffee Maker

1 Answer

Why does steam wand on dualit espresso leak

The wand can leak if the rocker switch is not in the UP position.

In MIDDLE position it will try to deliver hot water.

In DOWN position it will try to deliver steam.

The thermoblock in this unit is actually a 3-way valve, of which two positions route water from the boiler directly to the wand. The 3rd position (UP) routes hot water (but not steam) from the boiler to the group head.

Try holding the switch in the UP position by hand when making coffee. If the machine still pushes water through the wand then you will have to replace the switch inside the machine that is activated by the rocker, or the valve it operates.

Please let me know how it goes.

graham dot r dot leach at gmail dot com

Oct 01, 2010 | Dualit Espresso 889 Espresso & Coffee...

2 Answers

Have Model CTF-15. Only dripping half a pot. Has

Change the in line water filter on the unit.

Unit may also need descaling.

Jan 07, 2010 | Bunn Coffee Makers & Espresso Machines

3 Answers

It say brew unit missing

The brew unit missing switch is inside the slot at top back wall where the top of the brew unit puts an angled piece of plastic into the slot. The piece is a slope like a nose so it gently pushes the switch as you instert the brew unit. See if the brew unit reaches this slot on the wall. If it doesn't the brew unit most likely jammed up and was removed while the gears were not in home position. Now the gears are not allowing the brew unit to return fully inserted.

If you're handy you can call Miele tech support and request they walk you through steps to diagnose this. They will discover if the gear is out of home position or not. If it is not and the switch is in contact with the brew unit you may be in luck, the swith is cheap. But if the electronics no longer reads the switch signal it's 800 bucks to replace. Good luck!

Oct 07, 2009 | Miele CVA615 Espresso Machine

2 Answers

Cleanded brew unit as instructed - brew unit miss error

check small switch behind brew unit in machine maybe your brew unit dont touch switch.

Aug 30, 2009 | Saeco Royal Digital Plus Coffee...

1 Answer

I have lost the manual for the Cuisinart Brew Central, model CBC-00, coffee maker. My question is this: What the "carafe temp" knob does with L and H selections? I assume it is to select the carafe...

Hello pdmkali,
Your assumption about the carafe temps is correct. The middle position gives you a medium temp, of course. I use it on low so that I don't burn my lips and tongue when I drink my coffee. Thank you for the opportunity to answer your question. If it is helpful, please leave positive feedback for me. It is appreciated. Regards, NormanZ :o)

Jun 28, 2009 | Cuisinart Brew Central 12-cup Coffee Maker

2 Answers

Gaggia Synchrony Brew Unit Block

You have got the gears out of alignment. You don't really want to take out brew group unless at end of cycle. You can fool machine to get brew group back in.
Here is how :

If you ever find yourself in need of removing a Brew Group that has jammed. This will assist you in doing so correctly.

To fix this problem follow these simple steps:
You will need a #1 Philips screwdriver

1.) First, open the door on the machine and remove the drip tray and dredge drawer

2.) Locate the nickel size hole in the brew group. It will have an "N" next to it. At the 9 o'clock position, you will see another hole about 1/3 of the size of the first. Directly behind this hole, or about an inch up depending on the position the machine was stopped in you will see a single philips head screw. You may have to look around the side of the brew group to locate the screw as it is not always visible from the smaller hole. Remove this screw; it holds a small coupling water inlet (it is similar looking to a tobacco pipe) to the brew group.

3.) Remove the brew group by pressing/pushing (depending on your machine) on the part that says “Press" or "Push”. Pull firmly and straight out. Be cautious to not break the brew unit. Also be aware of the door of your machine as it can break as well.

4.) With the brew group out, remove the small coupling water inlet (tobacco pipe) that is probably still stuck to your machine and reinstall it in the brew group as it was before. Make sure the screw is installed snugly but not too tight.

5.) Turn the brew group around so you are facing the back. Now imagine what a check mark looks like, the top we will call position A (longer part of the checkmark) and where the checkmark ends (the smaller portion) is point B. You will notice what looks like a large checkmark where the coupling water inlet is located. The water coupling can slide up and down in this checkmark opening. The water coupling should be in the B position.

To do this, the gears will have to be reset to the start position. In order to do so, you will have to bypass the three micro-switches (Brew Group, Dump Box and the Door switch).
Bypassing the micro switches:

1.) Looking at the back-side of the brew group, not the side that says "Push" or "Press," you will notice something fin-like or nose shaped. This piece fits into a keyhole or coin slot looking slot in the machine and that is where the brew unit micro-switch is located. Take something like an index card, envelope, or folded up piece of paper, and insert it into that keyhole so that it will trick the machine into thinking that the brew unit is installed. Start the piece of paper at the top of the slot and slide it to the bottom of the slot. The paper should be thick enough so you can let go and it will remain in place. Leave this object in there until the following steps are complete.

2.) WITHOUT putting the brew group back into the machine, reinstall the drip-tray and dredge drawer and close the door.

3.) After doing so you can then turn the machine ON. At this time the gears will begin moving until they return to the correct start position. At this point remove the object from the keyhole position and you can now reinstall the brew group. If the brew group does not go back in correctly, try a few more times. The machine will return to its home position. Note: The two large spokes of The brew drive shaft should in the Up position

At times, the gears in the brew drive assembly will not complete the cycle to the proper
start position for different reasons. Some of the reasons are:
• Brew group jammed or blocked
• Either one of the micro switches in the brew drive have gone bad.
• Brew drive motor Failure.
• Broken teeth on either of the brew drive gears.
• Dirty brew group, covered by coffee grinds.
• Brew group or gears not lubricated.
• Connections to the board from brew drive assy., or motor have gone bad.
A jammed or blocked brew group happens when the brew group starts the cycle but doesn’t finish it.

Dec 21, 2008 | Gaggia Super Automatic Espresso Machine...

1 Answer

Wate coffee container removed for cleaning, the machine was accidently switched back on. Now the container will not slide back into the machine, it looks like the coffee maker portion needs to be re

You can remove the brew unit and cycle it manually back to the neutral position. There is an arrow and letter "N" that will align when the unit is properly positioned.

Jan 08, 2008 | Solis Master 5000 Espresso Machine

1 Answer

Need switch for colman a/c unit

jason, if you are willing to to a little wire tracing, you can do this! We're going to create a new switch function. Chances are that two of the wires are probably for the fan motor (high and low). I'm not sure about max and normal. This uses a two position switch. Figure out which wires go where...then...get a '3 way' switch from the hardware store (they contain a common and two 'poles') along with a plastic box to contain them, a double switch cover and some 'heavy duty zip cord'. This is lamp cord but a heavier grade called number 16 or number 14 (14 preferred). Extend each of the wires and tape the connections. Now, threading the wires into the power box, hook the two fan wires that come to the switch to the new switch. Now, the common terminals and the power supply wire (probably the black) should be hooked together. It should all work...ugly but functional. If you need an on/off switch, you can make that a three gang box and include a standard on/off switch. If you can figure out the max/normal function, you can either switch it on or off or either/or...depending on the switch function. Hope this helps.

Dec 12, 2007 | Coleman 805D712T

5 Answers

Miele brew unit jammed and brewunit block is being displayed

There is a third solution. The brewunit drive motor has three contact switches that indicate home, preset (loading grounds, I assume) and make espresso. The problem is the three contact switches are all on one circuit, so the microprocessor knows a limit switch has been reached, but it doesn't know which one. The programming obviously assumes the limit switches are reached in the correct sequence. In my case, the microprocessor thought the brew unit was in home position when it was in the make espresso position. Miele technical support recognized this immediately, so it is a common problem. The solution is to remove the top panel of the unit, unplug the unit, unplug JP34 on the microprocessor board (four wires, red/yellow/brown/black, in the middle back edge of the microprocessor board). Plug in the unit, put it in maintenance mode, and press and hold the medium coffee button for several seconds. This will move the drive motor past the current limit switch. Plug JP34 back in, plug in the machine, and put it in maintenance mode. Press and hold the large coffee button for a second or two, maximum. Open the machine, and look at the brew unit drive male gear in the main machine as compared to the brew unit female gear. It will take several tries to get the male/female gears to match so you can plug in the brew unit. Once this is done, and the brew unit snaps in place correctly, place the machine in maintenance mode one more time and press and hold the Medium Coffee button to reset the microprocessor with the limit switches. You should be back in business!

Nov 25, 2007 | Miele CVA615 Espresso Machine

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