Troubleshooting For Main Fan (3 Ø) - Roberts Gorden Combat POP-ECA 015 Installation, Commissioning, Operation & Service Manual

14.7 Troubleshooting for Main Fan (3 Ø)
Main fan will not operate
following warm up
period of heat exchanger.
Check for 400 V three phase
supply at main terminals.
Check for 230 V at terminals
Check for 230 V at coil
of fan contactor.
Does fan run now?
Motor stops after running
TROUBLESHOOT ENDS.
For your safety and optimum heater performance, use only ROBERTS GORDON
Conduct Commissioning procedure as on Page 33, Section 10.
START
No
Yes
No
1 to N
Yes
No
terminals
Check for 400 V three phase
No
Yes
Yes
some time.
No
Motor running.
No
Fault lies elsewhere.
Press in white button
No
of fan/limit thermostat
and retest.
Yes
Check the setting of the
Yes
fan thermostat as in
Section 5.1.
No
Fan thermostat faulty.
Replace and reset.
Reset thermal overload
and check setting. See
page 28, Section 10.1.6.
at input and output of
No
contactor.
Yes
Check and test wiring to
motor.
Motor faulty.
Replace complete fan unit.
Thermal overload in motor
is faulty.
Replace complete fan unit.
(direct drive fans only)
If problems persist, contact
®
ROBERTS GORDON at
Tel: +44 (0)121 506 7709
www.rg-inc.com
Fault lies elsewhere.
Check calibration of the
fan thermostat.
The dial should indicate
the approximate
temperature of the
sampled air.
Contactor or overload faulty.
Replace as necessary.
®
replacement parts.