LAS02NW Speed Queen Washer - All faucets pulse when Washer in fill cycle

[Neild]

Model Number

LAS02NW

Brand

Speed Queen

Age

More than 10 years

This may not be a washing machine issue but I have exhausted all options.

Speed Queen Model LAS02NW SN 0303020737

Problem statement;
On fill cycle every faucet in house and hose bibs pulse water at a rate of about once a second.

So far I have done the following and still have the issue.
1. Verified Constant voltage at valve
2. Water pressure is 80psi
3. Screens were clear
4. Replaced valve 201491p
5. Temporarily hooked up other washer
6. Installed water hammer arrestors

if I turn off cold or hot water valve, pulsing stops.

 

[Jake]

That's very strange, never seen that happen before. Hopefully another tech or member that has can shed some light on it for us, I'm very curious myself to this cause.

Jake