Polaris 3900 pressure valve gushing water. Cleaner not running right

[rogerR]

My 3900 is 4 years old. I have already replaced the booster pump with a non-Polaris model and it worked fine the last few months but now my pressure valve is gushing water and cleaner is barely moving. I picked it up while it was on and Jets were coming out just fine. The wheels are not turning though. Any advice on what can cause the pressure valve and the wheels not turning? I have checked the in line filter and replaced the pressure valve. Also confirmed the blue restrictor disk is in place. Thanks in advance

 

[1poolman1]

My 3900 is 4 years old. I have already replaced the booster pump with a non-Polaris model and it worked fine the last few months but now my pressure valve is gushing water and cleaner is barely moving. I picked it up while it was on and Jets were coming out just fine. The wheels are not turning though. Any advice on what can cause the pressure valve and the wheels not turning? I have checked the in line filter and replaced the pressure valve. Also confirmed the blue restrictor disk is in place. Thanks in advance

A clog in the internal jet that drives the gears can cause the pressure relief to open. Also, check that the relief valve has not been loosened, that the collar a round the "button" is tight.