cancel
Showing results forย 
Search instead forย 
Did you mean:ย 

Fast cycling water pump

oxygen
Explorer II
Explorer II
We have a Shurflo 4008 water pump that cycles on and off continuously, especially at lower flow rates from kitchen and bathroom faucets.
TT is a 2014 Rockwood lite. Pamphlet that came with tt talks about adjusting the bypass and pressure switch, wondering if anyone has done so and where these screws would be? Didn't notice this before but nothing has be changed in terms of tubing, etc..
Thanks, Del
2012 F-150 XLT,screw, EcoBoost-3.5 liter, Heavy Duty, payload 2400
2014 Rockwood 2604WS, Equalizer head
5 REPLIES 5

pauldub
Explorer
Explorer
Maybe you need to refresh the air pocket in your water heater. The air disolves into the water over time. Drain and refil the hot water tank and it will probably cure your problem.

Byrogie
Explorer
Explorer
oxygen wrote:
Thanks for the reply. Is is best to set pump to max turns with screw or start lower initially?


The instructions in the link is a good place to start.....

WNYBob
Explorer
Explorer
You can also try an accumilator tank.

oxygen
Explorer II
Explorer II
Thanks for the reply. Is is best to set pump to max turns with screw or start lower initially?
2012 F-150 XLT,screw, EcoBoost-3.5 liter, Heavy Duty, payload 2400
2014 Rockwood 2604WS, Equalizer head

Old-Biscuit
Explorer III
Explorer III
Shurflo 4008 'off the cuff' adjustments
Is it time for your medication or mine?


2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31