Greenlee 847 User Guide
Greenlee Textron / Subsidiary of Textron Inc.
8
4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
PVC Heaters for PVC Conduit
Troubleshooting
PROBABLE CAUSE
PROBLEM
PROBABLE REMEDY
Heater does not heat up.
No power at supply circuit.
Check power supply with a voltmeter.
Verify that the circuit has the
appropriate voltage and current
rating. See the Specifications section
of this manual.
Verify that the circuit has the
appropriate voltage and current
rating. See the Specifications section
of this manual.
Switch is faulty.
Disconnect power. Turn the power
switch to the ON position. Check
continuity between:
switch to the ON position. Check
continuity between:
• terminals 1 and 2
• terminals 3 and 4
• terminals 3 and 4
Replace the switch if either terminal
pair does not have continuity.
pair does not have continuity.
Heating element is faulty.
Disconnect power. Disconnect
terminals A and B. Check continuity
between terminals A and B. Replace
the heating element if this terminal
pair does not have continuity.
terminals A and B. Check continuity
between terminals A and B. Replace
the heating element if this terminal
pair does not have continuity.
Pilot light does not light up.
Pilot light is faulty.
Disconnect power. Check continuity
between terminals 5 and 6. Replace
pilot light if this terminal pair does not
have continuity.
between terminals 5 and 6. Replace
pilot light if this terminal pair does not
have continuity.
Motor does not operate.
Motor is faulty.
Disconnect power. Check continuity
between terminals 7 and 8. Replace
motor if this terminal pair does not
have continuity.
between terminals 7 and 8. Replace
motor if this terminal pair does not
have continuity.
Rollers do not operate.
Drive chain binding or broken.
Replace drive chain.
Drive sprocket is loose.
Tighten or replace drive sprocket set
screws.
screws.