Question about Dell 1600n All-In-One Laser Printer

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Open heat error

I replaced the fuser and the mother board and I'm still getting this error.
Any other possiblities?

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  • janonee Feb 02, 2008

    Open Heat Error in Dell 1600n printer. Anyone has any solution?



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  • 152 Answers

Printer cooling fan working or not ?

check fuser assy heat register

Posted on Feb 25, 2008


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1 Answer

I just replaced the mother board in my Dell 8400. I am now getting the Error "Alert chipset heat side not detected". I know that i have applied the arctic silver 5 corectly.. (this heatsink has no sc

Turn the computer off.
Disconnect the AC power.
Open the case.
Check that the heat-sink is securely and tightly connected where it should be.

Mar 11, 2013 | Computers & Internet

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Dell 1600n low heat error

Remove the fuser lamp and put it back in place, it is not heating properly.

Apr 02, 2008 | Dell 1600n All-In-One Laser Printer

1 Answer

Printer is showing Open Heat Error & it is not getting solved

Open Heat Errors on the Samsung 4200 are caused by an interuption in powerflow thru the fuser unit. This is caused by one of two things. 1) The Power supply board is not putting out enough power to the fuser unit. 2) The fuser unit has a bad heat bulb or thermister. You can not really check these effectivly without having either replacements on hand or the full tech sheets and a multimeter. I am sorry to say buying a new printer or a replacement fuser unit will be your best bet.

Aug 30, 2011 | Samsung SCX 4200 All-In-One Laser Printer

1 Answer

The fax shows a messages saying "open heat error"

On this machine, you may have a fuser assembly that is bad. Replace the fuser modual.
If this doesnt work, then the main board needs to be replaced.
Also what most people forget is the fuser fan. Sometimes it turns slow and you will not even notice it. It might not even turn at all.
Replacing the fan will solve most problems, but if it still does not turn on, Look on there to see if it has a small circuit board on the fuser fan, replace it too.
if all else fails the main board needs to be replaced.
Good luck

Jul 29, 2010 | Xerox WorkCentre M20i All-In-One Laser...

1 Answer

Samsung ML2571N Fuser Open heat error - Fuser Is Good

Hi Kevin,

The main power supply board in short we call it (SMPS) the error you got is quite common that the main power is not getting in to the transformer in the correct voltage. Normally is to replace the SMPS and the fuser as well.

For more Technical test on the SMPS 1st of all we will test the fuse on the SMPS which is located at the bottom right hand corner. using a multi-tester, 2nd will be the capacitor and 3rd which is the last will be the big and small transformer with power on. note the last test is dangeroures unless you are a electrician experts.

hope this help :)


Jan 23, 2010 | Samsung ML-2510 Laser Printer

1 Answer

My laser printer gives message open heat error how can I fix

This is most commonly caused by a failure of the Fuser unit.
However, in rare circumstances, this can be caused by the Fuser Control section of the SMPS, or the fuser temperature monitoring circuit on the Main Board.
There is a closed control loop:
1. AC voltage is supplied to the Heat Lamp in the Fuser from the Fuser Control section of the SMPS
2. The temperature of the fuser heat is monitored by a thermistor (mounted on the Fuser) connected to the Main Board.
3. The Main Board determines if the fuser temp is too low, correct, or too high and signals the Fuser Control to increase, maintain, or decrease the AC voltage to the Fuser
sorry io say but you had to replace the fuser
call dell costumer support and tell your model no. ask for fuser replacement and they will do it .
Hope your printer is in guarantee period otherwise you had to pay.

Dec 13, 2009 | Dell 1600n All-In-One Laser Printer

2 Answers

Open heat error

Most "Open Heat Error" messages are caused by a bad fuser. Order a new fuser from Dell.

May 22, 2008 | Dell 1600n All-In-One Laser Printer

4 Answers


hi im jules_09,does the machine warms up?if not reset the error code in the program.if the is still there check the termistor,heating lamp and termalfuse one of those components are deffective.test it with a tester

Nov 02, 2007 | Xerox CopyCentre C20 Black and White...

5 Answers

Open Heat Error

the thermal switch on the fuser are damaged. my problem is that I don't know the temperature of activation to this. And do not buy a replacement under this conditions. somebody help me.

Sep 27, 2006 | Dell 1600n All-In-One Laser Printer

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