Installed a new pressure tank and switch. Power up system and the cutin and cutoff are 40/60. On initial fill water fills system to 60 psi and pressure switch turns off. If draw on the system is constant, say take a shower for 20 mins, the pressure will reduce to 40 (cutin) then the pump turns on. Everything working fine so far. Now the pump stops pumping at 55psi, that is 5 psi lower then the 60psi cutoff. If constant draw on the system, still taking a shower, water continues to exit the system as it should. The pump turns on 40 psi (cutin). Now the pump stops at 48 psi, not 60psi (cutoff).
When the pump stops prior to reaching the 60psi (cutoff) the pressure switch contacts remain closed. No flow of water into the pressure tank. After 90 seconds the pump turns back on and then pumps to the 60psi cutoff. As the draw on the system continues the pump stops sooner and never makes it to the point prior, say 48 psi. The next value maybe 40. Wait 90 seconds and the pump begins pumping again.
It appears to me that the issue is with the pump motor Thermal overload protection. Is this true ? Is there a 90 second thermal overload that resets the pump in 90 seconds ? I am using a Franklin Electric motor 2445059004.
Can someone help ?
When the pump stops prior to reaching the 60psi (cutoff) the pressure switch contacts remain closed. No flow of water into the pressure tank. After 90 seconds the pump turns back on and then pumps to the 60psi cutoff. As the draw on the system continues the pump stops sooner and never makes it to the point prior, say 48 psi. The next value maybe 40. Wait 90 seconds and the pump begins pumping again.
It appears to me that the issue is with the pump motor Thermal overload protection. Is this true ? Is there a 90 second thermal overload that resets the pump in 90 seconds ? I am using a Franklin Electric motor 2445059004.
Can someone help ?