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Do you have the dreaded F7 message pulsating from your oven? The original purpose of the F7 message is to
signal a stuck START key, which is a rare occurrence. The more common cause is a type of short circuit that
occurs in the touch panel near the cable slot. The fix that I will describe addresses this type of fault. It will not
fix a stuck START key. It will not fix a faulty Electronic Range Control (ERC). If you are getting other errors,
such as F1, the fix may still do the job. F0 is usually a shorted off key.
Cleaning the ribbon cable connector is a myth. What you accomplish is to temporarily disrupt the short circuit
occurring near the slot in the touch panel. With time the short circuit grows back. It happens more often when
the humidity is high. So here is my solution to the F7 problem.
The most important step is first turn off the power to the oven at your circuit breaker panel.
You will need to open the touch panel. There are typically three small screws on the bottom edge of the touch
panel. It is advisable to have an assistant to hold up the panel while you work on it. Pull the panel outward at
the bottom to gain access. There are many wires attached to the panel. Do not allow the panel to dangle by the
wires.
When the panel is open, you will see a flat ribbon cable connecting the ERC to the touch panel. See photo # 1.
The principle of the fix is to apply additional insulation in and around the ribbon cable at the slot where it exits
the touch panel.
There are three basic styles of touch panels. Here is how the fix is applied for each style.
1. Plastic touch panel with a two-segment ribbon cable.
Apply a slip of paper or file card material between the two segments of ribbon cable in the area of the
slot. Work the paper down as far as it will penetrate. Typically it will only go in about 1/8?.
See photo # 2.
2. Metal touch panel with a two-segment ribbon cable.
Apply the extra insulation as per style 1. In addition, apply extra insulation on both sides of the ribbon
cable and the edges of the slot.
See photos #3 & #4.
3. Metal touch panel with a one-segment ribbon cable.
Apply the extra insulation on both sides of the ribbon cable and the edges of the slot.
If your style is different from the above three styles, the fix will not work for your situation.
Don?t be concerned about using paper for the insulation. It will not get hot enough to burn. You will probably
find a set of instructions printed on paper in the top of the oven when you open the touch panel.
If the fix doesn?t work for your situation, you will need to replace either the touch panel or the ERC. Here is
how to determine which one is faulty.
1. Turn the power off.
2. Remove the ribbon cable connector from the ERC.
3. Turn the power back on.
If the F7 does not appear after a few minutes, the problem is in the touch panel and it must be replaced.
If the F7 returns after a few minutes, the problem is with the ERC and it must be replaced or repaired. Check
www.cgiltd.com for information regarding repairing ERCs.
Good Luck. May the ?fix? be with you.
We suggest you first remove all of the ink cartridges from the HP D7160 printer, then attempt the carriage un-jamming instructions as provided by the others above. If the jam still cannot be cleared then either the flex driver cable has a problem or the service station (below carriage assembly) is blocking carriage travel.
For advanced HP D7160 printer diagnostics specific to your printer model, please refer to 'HP Diagnostics Tests' .pdf file at the following Inkjet411 support site link: http://inkjet411.com/?page_id=1813
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if you have a warrenty on it then just go to the store that you bought it from and return for a new one, if you dont have a warrenty then nintendo may fix it but im sure for a hefty price! im sorry this isnt a solution for your christmas grief, im sorry!
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