Question about Whirlpool Duet GHW9150P Front Load Washer

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What does the warning code F-11 mean? The washer stops at the rinse cycle

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F11 is:
Serial Communication Error
Communication between the Central Control Unit (CCU) and the Motor Control Unit (MCU) cannot be sent correctly.

Check for:
Check Wire Harness connectors to the MCU, the motor, and Central Control Unit (CCU)
Check the Drive system for any worn or failed components
Check MCU
Check CCU
Check Motor
Check Wire Harness

If all the connections look fine , then its possible the CCU is reading wrong and will need to be changed
I. Remove the top cover by removing the three 7mm screws on the back of the machine at the top. Slide the cover to the rear and lift off. The CCU board has 2 relays on it. They have white plastic covers. One is labeled K4 and I believe the other is K2. There are five legs on each relay soldering them to the circuit board. Remove the circuit board from the machine. It is the one you can see with the top off in the back of the machine. Unplug all the connectors. Unsolder the 2 relays...brand name Omron. With a jewelers screwdriver carefully remove the plastic cover on the K4 relay. Examine the contact points on the normally open contacts and I will guarantee they will look dull and burnt. They should be bright and shiny. You can burnish the contact points lightly and clean them with electrical contact cleaner. If you take off the cover of the 2nd relay you will see the contact points are nice and bright and shiny. Swap the 2 relays and resolder them on the circuit board. While you have the board out, take a pencil eraser and rub it on the contact points where all the connectors slide onto the board. Spray the electrical contact cleaner to wash any residue away. Carefully reinstall the circuit board and replace the top cover. This is a temporary fix and you can expect another failure at some point when the points deteriorate on the swapped relay. At that point I would try and find replacements for both relays. The K2 relay has less voltage going thru the contacts and does not fail. If you feel real comfortable, you can check the "wiping" action of the points by manually operating the relay when you have it out. you can adjust to give a bit more wipe on both relays. I hope this helps...and a vote for my trouble would be greatly appreciated.

Posted on Mar 16, 2011

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Serial communication error. Means there is a fault with either the connections between the main control board and motor, the control board itself or the motor itself. First check all connections are inplace and tight. Replace any parts that look faulty if you can. Might be worth getting it looked at as it's not a specific error. Hope this helps.

Posted on Mar 16, 2011

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Hi


An "F-11" error code on a Whirlpool Duet could cause your washer to become inoperable and stop in the middle of a load. The cause of the problem could be a number of things and may require new parts.
F11 can mean anything from motor to motor control board to ccu board to wiring harness connecting ccu to mcu to motor.

Identification

The "F-11" code could appear with the dash or without the dash on the LCD screen. Be aware that there is also an "F-H" code that could look similar to the "F-11" code. Listen for 11 beeps to go along with the error code's first appearance.

Effects

The error means that there is no communication between the "Motor Control Unit" and the "Central Control Unit." This means that any operation selected like "Pre-wash" or "Large Load" cannot be sent to the motor for the washer to operate.

Prevention/Solution

Open up the washer panel to check the wire connections between the two units. If any plugs are loose or unplugged, reconnect them. Check to make sure none of the wires are stripped, rusty or broken off. After you reconnect the wires, rerun the washer to see if the error appears again.

Warning

If you do not know or understand the inside components of your Whirlpool washer, leave the job to a professional. Contact the store where you purchased the washer or Whirlpool customer service directly.

Please get back to us if you have further query else please accept the suggestion.
Thank you for contacting fixya.com



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