Mark Bramble
New Member
Good morning, I have a 4" 1/2 hp 115v pump, about 2 days ago it started to not work. The pressure switch appears to be working fine. There is contact and spark. I eventually changed out the control box with no change. I checked the resistance in the pump and got 2.1 ohms and 7.2 ohms which from what I have looked up is 50% above high range (?)(I'm out and about one number could be a bit different). The pump sometimes will come on however it will only build about 45-50 psi and will not achieve high pressure cut off. The pump will stop itself and normally I need to pull the control box and give it a bit before it may run again. Any suggestions or is it basically burnt out? Thanks