Why does the pressure gauge read low or no pressure?
Things to check: Pump lid may not be on right, dirt might be stuck between the o ring of the lid and the pump housing, take lid off, inspect the o ring and put it back on and tighten, hand tighten only. Skimmer basket and/or pump hair and lint basket needs cleaning. Leak at suction side of pump. Could be sucking air. Pool water level too low. Skimmer weir door stuck. Pump could have lost prime due to leaks in the system.
