Bwst, bwsf and bwscap series – Blue Angel Pumps BWST50 User Manual
Page 5
5
BWST, BWSF and BWSCAP Series
www.blueangelpumps.com
Troubleshooting Chart
Symptom
Possible Cause(s)
Corrective Action
Pump will not start or run
1. Blown fuse
1. If blown, replace with proper sized fuse or reset
breaker
2. Low line voltage
2. If voltage is under 108 volts, check wiring size
3. Defective motor
3. Replace pump
4. Defective float switch
4. Replace float switch
5. Impeller bound-up
5. If impeller will not turn, remove housing and
remove blockage
6. Float obstructed
6. Make sure float move freely up and down
Pump starts and stops too
often
1. Backflow of water from piping
1. Install or replace check valve (Blue Angel check
valve kit #66005-BLA)
2. Faulty float switch
2. Replace float switch
3. Incoming water is draining on
sensor face
3. Position pump switch away from the inlet so
switch is clear from incoming water (See Figure
3).
Pump will not shut off or
thermal protector turns off
1. Defective float switch
1. Replace float switch
2. Obstacle in piping
2. Remove pump and clean pump and piping
3. Float obstructed
3. Make sure float move freely up and down
4. Low line voltage
4. If voltage is under 108 volts, check wiring size
5. Too many appliances on circuit
5. Install pump on dedicated circuit.
IMPORTANT: Do not use extension cord to power
pump.
6. Dirty Solid-State Water Sensor
6. Clean sensor face (see Figure 5)
7. Incoming water is draining on
sensor face
7. Position pump switch away from the inlet so
switch is clear from incoming water (see Figure
3)
Pump operates but delivers
little or no water
1. Low line voltage
1. If voltage is under 108 volts, check wiring size
2. Plugged impeller
2. Clean out impeller
3. Check valve installed backwards
3. Reverse position of check valve
4. Pump airlocked
4. Drill 1/8 inch hole in discharge line between
pump and check valve
Gurgling sound from pump at
end of cycle
1. Air injested into pump
1. Wipe off surface of sensor (see Figure 5)
2. Time required for pumping is less
than 4 seconds
2. Additional run time will not damage pump