How to turn on sprinkler pump? (novice=may be an easy answer!)

[chatguy]

Hi All,

I'm a new homeowner with an underground sprinkler system, that also has a pump (due to low pressure of city water). Although I've opened up sprinkler systems in other homes before that don't have a sprinkler pump, I do consider myself a novice. Currently, water does flow through the sprinkler heads, but with low pressure, while noticing the pump not turning on.

I noticed the pump is connected to a relay box, which is also connected to the sprinkler control box. The control box and the relay are both plugged into a working outlet, but the pump does not turn on....making me think there is a simple switch to turn it on, that I'm not finding? If so, would anyone know where I can find that switch?

The pump is: Myers model # RJ50S (The sprinkler control is Rain Dial RD900-INT).

Would anyone know how to turn on the Myers RJ50S pump, or where the pump's on/off switch is?

Thanks,
cg

[BRad704]

Could be a failure at any the control box or relay box... I have no experience with sprinkler systems, but logically, if there is power to the box, and no other wires leading off to a switch, then the failure has to be after the outlet.

Unless you have any random switches in the house, most likely in the garage, used to turn on the pump...

[speedbump]

The relay box you mentioned is probably a pump start with a 24 volt coil. When the timer tells the valves to open for the sprinklers, it also sends a 24 volt signal to the pump start to pull the points together to start the pump.

There is a good chance the coil has opened up and needs to be replaced. No coil, no magnet, no pump start.