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Whirlpool WFW9150WW00 Trouble Code 1 8

8 posts in this topic

My Whirlpool WFW9150WW00 fills, runs through the wash cycle then stops and beeps. While beeping the wash light blinks 1 then 8 times.  Pressing the power button cycles it to drain and unlock. 


What is the F 18 mean?  

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Need appliance parts? Call 877-803-7957 now!

... fills, runs through the wash cycle then stops and beeps.

... wash light blinks 1 then 8 times.

1) may be a problem with the cold Water Valve ... try a cold Wash cycle

2) maybe 8, then 1 ?




Possible Causes/Procedure

- Check if the home has low water pressure; open the water faucets.

- Unplug washer or disconnect power.

- Make sure that cold and hot valves at the water source(s) are turned on all the way.

- Check for plugged or kinked inlet hoses or plugged screens in the inlet valves.

- Check all hoses for possible leaks.

- Check if the customer used an aftermarket “no flood” hose.

This can sometimes stop the flow of water to the washer.

- Make sure that wire harness connections from Inlet Valves (double and single),

Drain Pump, Pressure Switch, & CCU (PR6, DP2, VCH7, and DI6 cavities connectors)

are not broken or with wires detached, and that connector internal pins are visible.

- Check the continuity between the following components:

A. Inlet valve connectors (double and single) to the CCU (VCH7 and DI6 cavities)

B. Drain Pump & CCU (DP2 cavity) connectors

C. Pressure Switch & CCU (PR6 cavity) connectors.

- If the continuity diagnosis failed, Main Harness must be replaced.

- Check the resistance of the Inlet valve in each port of the valve (double & single).

- Make continuity test to the Pressure SW. See page 7.

- Verify that the pressure switch hose is in good condition and properly connected to tub and pressure switch.

- Check hose for possible leaks. Remove hose from pressure switch.

Make sure that the open part where the hose is connected doesn’t have debris.

- Check pressure switch operation. Remove pressure switch.

Blowing air through the opening, the two internal switches are heard one by one.

- Check for Suds.

- Verify there is not a siphon problem.

- Make sure that all the connectors are fully seated.

- Plug in washer or reconnect power.

- Verify the washer operation by running the Diagnostic Test cycle. See page 5.

- After the diagnostic test has finished, unplug washer or disconnect power and wait for 15 seconds.

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OK that makes more sense.  Trust me to get it bas ackwords.  I will work through the trouble guide tonight. 

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Follow up 


In an attempt for a fast fix I pulled the hoses off to check flow.  Good stream of water but the inlet filters were clogged.  After cleaning both inlets I pronounced the problem solved, the washer disagrees.  After completing the fill, it returns to F8 E1 and stops.  I will deep dive into the pressure switch and other diagnostics this weekend.  

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Today's top removal exposed the obvious issue, the pressure switch hose fell off.  It is returned to its rightful place and secured from further meandering with a bit of wire lightly tightened as a hose clamp.  To all future techs, I suggest a small clamp or made up twist of wire to prevent your hose from jumping off the switch.  


Thanks for saving me a service call and helping me keep my wife fooled into believing she can not live without my skills with tools. 



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It's unlikely, but possible, that the pressure switch hose fell off under normal operations. Are you sure there isn't an out of balance issue going on?

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Not really, the washer is in a close fitting area and like many Florida homes almost in the kitchen.  Any unbalance condition would be quickly noticed, we do not run the washer unattended. The hose slid on very easy and seamed very likely to drop off again without some type of clamp. 

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It doesn't happen often, but I have seen it. If the hose isn't tight I use a zip tie around it. I do it if I ever find one of those that slide on or off with little resistance. Peace of Mind, I don't like buying new floors for people when it can be avoided.

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