shower pump pulsing after use

[Declan Ocarroll]

Ihave fitted a 3bar Watermillshower pump it works fine except when shower turned off it continues to pulse until power is turned off and when power is back on its ok

 

[steadyon]

1. Has it been fitted completely in accordance with the manufacturer's instructions, and in particular:
1a. With separate hot and cold feeds from their respective cistern / cylinder.
1b. For the hot connection, has an appropriate flange been fitted.
2. If the answer to the points above is yes, then could be an airlock.

Photo's?

 

[rpm]

Check the electrical side of things.

 

[Declan Ocarroll]

1. Has it been fitted completely in accordance with the manufacturer's instructions, and in particular:
1a. With separate hot and cold feeds from their respective cistern / cylinder.
1b. For the hot connection, has an appropriate flange been fitted.
2. If the answer to the points above is yes, then could be an airlock.

Photo's?

fitted according to instructions ,flange was already fitted to hot water tank.If it is an airlock how do I go about venting it?

 

[fezster]

I remember a Salamander pump I had many moons ago did this, and they recommended fitting an NRV on the hot outlet. Ring the manufacturer to see what they advise.

 

[Aire]

As above, single check valves on the outlet of the pump. Had it loads of times before, especially when the outlets go vertically out of the pump. What happens is after the pump shuts off, the water falls back and activates the flow switch, then pumps back up, pump shuts off, water falls back down etc etc.

 

[Declan Ocarroll]

As above, single check valves on the outlet of the pump. Had it loads of times before, especially when the outlets go vertically out of the pump. What happens is after the pump shuts off, the water falls back and activates the flow switch, then pumps back up, pump shuts off, water falls back down etc etc.

As above, single check valves on the outlet of the pump. Had it loads of times before, especially when the outlets go vertically out of the pump. What happens is after the pump shuts off, the water falls back and activates the flow switch, then pumps back up, pump shuts off, water falls back down etc etc.

 

[Declan Ocarroll]

I remember a Salamander pump I had many moons ago did this, and they recommended fitting an NRV on the hot outlet. Ring the manufacturer to see what they advise.

great tip fitted NRV solved problem THANKS