ENVIRO-TEC
35
FORM ET115.24-NOM11 (118)
CHECKING WIRE HARNESSES
Use ohmmeter to verify that ground wire has continuity
from S1 to enclosure case.
To check incoming power wire harness:
• Refer to wiring diagram.
• Remove power from the unit. Unplug power
harness J2 or J3 connector.
• Unplug power wires from connections (line block,
disconnect switch, toggle switch or fuse(s)) in
electrical enclosure. Verify continuity of wires, then
reconnect to J2 or J3 connector.
To check motor harness:
• Refer to wiring diagram.
• Remove power from the unit. Unplug motor harness
J4 and/or J5 connector.
• Unplug motor harness from motor connection or
PWM board (depending on type of motor). Verify
continuity of wires, then reconnect to J4 or J5
connector and to motor or PWM board.
To check low voltage wire harnesses:
• Remove power from the unit. Unplug low voltage
harness J1 connector and disconnect connections
at other end of J1 harness.
• Use ohmmeter to check continuity for each
conductor, then reconnect harness to J1 connector
and to other connections.
Before reconnecting power to unit, verify all harnesses
are connected per diagram.
Use caution when inserting meter probe into plug.
Excess force will damage contacts.
