Xylem GSSERVICE R2 Service Manual Submersible Pumps & Jet Pumps - Manual (Page 66)

RULE OF THUMB
Remember there may be other system problems
caused by auxiliary controls not covered in this
booklet.
An amprobe, ohmmeter and vacuum pressure gauge
are essential for properly checking a system. Use of the
amprobe and ohmmeter are explained in Amprobe/
Ohmmeter Instructions. Use of the compound vacuum
pressure gauge is explained in Checking Suction Lift.
Find the basic problem for which numerous symptoms
and possible solutions are given for each.
Pump Will Not Run . . .
64
Probable Cause Recommended Action
1. Blown fuse or power Replace fuse – close all
turned off switches.
2. Broken or loose Examine all wiring and
wiring connections. repair any bad connections.
3. Motor overload Overload contacts will
protection contacts close automatically in a
open. short time.
a. Improper voltage. See Volt Ammeter
b. Pump bound mechanically – Remove motor end cap,
will not turn freely. turn motor shaft by hand.
Unit should rotate freely.
4. Pressure switch faulty or Adjust or replace switch.
out of adjustment.
5. Tubing or fittings on Remove switch tubing
pressure switch plugged. and/or all fittings and clean.
6. Faulty motor. See Jet pump ohmmter
checks.
TROUBLESHOO
TING