Table 4-2. Unit Troubleshooting - CONT.
TEST OR INSPECTION
CIRCULATING PUMP MOTOR DOES NOT OPERATE.
Remove nuts and screws and open control box panel. With power disconnected, use an ohmmeter to
check for continuity across terminals on PUMP STOP switch.
If the reading is more than one ohm, the switch is damaged. Replace switch (page 4-182).
Check that pump motor neutral ground wire and coil neutral ground wire are securely fastened to the
neutral ground strip.
Securely fasten wires to neutral ground strip.