Why Pentair AERMOTOR CT35 Water Pump not pumping enough water?
If your Pentair Water Pump isn't delivering water to its full capacity, it could be due to the following reasons. If steel piping is used, it may be corroded or limed, causing excess friction; replace it with plastic pipe where possible, or with new steel pipe. The piping might also be too small; use larger piping.
How to troubleshoot a Pentair AERMOTOR CT35 Water Pump that will not start?
If your Pentair Water Pump motor won't run, start by ensuring the disconnect switch is on. Check for a blown fuse or tripped circuit breaker and replace or reset it. If these steps don't work, the starting switch may be defective and need replacement. Also, inspect the wires at the motor for looseness, disconnections, or incorrect wiring; refer to the wiring instructions and tighten all connections after disconnecting power. The pressure switch contacts might be dirty; disconnect power and file them with an emery board or nail file.
Why does my Pentair AERMOTOR CT35 Water Pump motor overheat and shut down?
If the motor of your Pentair Water Pump runs hot and the overload protection activates, it could be due to several reasons. First, ensure the motor is wired correctly by referring to the wiring instructions. Low voltage could also be the problem; check with your power company and consider installing heavier wiring if the current wire size is too small. Finally, the pump might be cycling too frequently; consult the section on too frequent cycling for solutions.
Why am I getting air spurts from my Pentair AERMOTOR CT35 Water Pump?
If you're experiencing air spurts from your faucets when using your Pentair Water Pump, it may be picking up prime; once it has, it should pump solid water without air. The well could also be gaseous; consult the factory about installing a sleeve in the well. Another possibility is intermittent over-pumping of the well, where the water is drawn down below the foot valve; lower the foot valve if possible, or restrict the pump discharge.
How to fix a noisy Pentair AERMOTOR CT35 Water Pump?
If you're experiencing mechanical or noise problems with your Pentair Water Pump, it could be due to a bent shaft and/or damaged bearings; take the motor to an authorized motor repair shop. Alternatively, the suction and/or discharge piping may not be properly supported and anchored; ensure all piping is supported to relieve strain on the pump assembly.
What to do if Pentair AERMOTOR CT35 runs but doesn't pump water?
If your Pentair Water Pump motor runs but no water is delivered, the cause depends on whether it's a new or existing installation. For new installations, re-prime the pump according to the instructions and check all connections on the suction line, AVC, and ejector for air leaks using soapy water or shaving cream; also, the foot valve or check valve could be leaking and may need replacement. In existing installations, check all connections on the suction line and shaft seal for air leaks, and ensure the water level is not below the suction pipe inlet; lower the suction line into the water and re-prime. If the receding water level in the well exceeds 25 feet, a deep well pump is needed. Additionally, the foot valve or strainer could be plugged and needs cleaning, the impeller might be plugg...
Why does my Pentair AERMOTOR CT35 Water Pump keep cycling on and off?
If your Pentair Water Pump is cycling too frequently, several issues could be the cause. First, check if any faucets have been left open and close them. The impeller might be clogged, so try cleaning it. Inspect the pressure tank for waterlogging, and ensure the air volume control is working correctly, checking for any air leaks in the connections. Also, examine the pipes and foot valve for leaks and fix them. The pressure switch might need adjustment or replacement. Finally, if you have a pre-charged tank, the air charge might be too low. To fix this, disconnect power, relieve pressure, and use a tire pressure gauge to check the air pressure in the tank. If it's less than the pressure switch cut-in setting (30-50 PSI), add air until it is 2 PSI less than the cut-in setting. Check the air ...
Manual contains vital safety instructions for installation, operation, and maintenance.
Precautions for safe electrical connections, including capacitor discharge and grounding.
Guidelines for safe operation, motor handling, work area, and preventing freezing.
Guidance on supporting, sizing, and connecting suction and discharge piping.
Instructions for increasing suction pipe diameter and proper connections.
Guidelines for increasing discharge pipe size and recommended piping runs.
Step-by-step procedure to ensure the pump is properly primed with water.
Instructions to change single-phase motor voltage setting from 230V to 115V.
Procedure for removing the old shaft seal from the pump assembly.
Steps for cleaning and installing the mechanical seal's floating seat.
Procedure for installing the rotating half of the mechanical seal and impeller.
General| Model Series | CT35 Series |
|---|---|
| Category | Water Pump |
| Brand | Pentair AERMOTOR |
| Type | Centrifugal Pump |
| Voltage | 115/230V |
| Construction | Close-coupled |
| Housing Material | Cast Iron |
| Seal Type | Mechanical Seal |
| Phase | Single |
| Maximum Head | 115 ft |
| Outlet Size | 1 inch |
| Weight | 28 lbs |
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