Troubleshooting For Solenoid Valves Circuit; Troubleshooting For Main Fan Circuit (1 Ø) - Roberts Gorden Combat POP-ECA 015 Installation, Commissioning, Operation & Service Manual

14.5 Troubleshooting for Solenoid Valves Circuit

Is there pressure on the
outlet of the valve when the
valve should be closed?
Does valve open at the
TROUBLESHOOT ENDS.
14.6 Troubleshooting for Main Fan Circuit (1 Ø)
START
Main fan will not operate
following warm up
period of heat exchanger.
Check for 230 V
at terminals 1 to N.
Yes
Check and test wiring to
motor. Does the motor run
now?
Yes
Motor stops after running
some time.
No
Motor running.
TROUBLESHOOT ENDS.
For your safety and optimum heater performance, use only ROBERTS GORDON
Conduct Commissioning procedure as shown on Page 33, Section 10.
START
Yes
No
No
correct time?
Yes
Valve Operating
No
Press in white button
No
of fan/limit thermostat
and retest.
Yes
Check the setting of the
fan thermostat as in
Figure 13.
No
Fan thermostat faulty.
Replace and reset.
Motor faulty.
No
Replace complete fan unit.
Thermal overload in motor
Yes
is faulty.
Replace complete fan unit.
If problems persist, contact
ROBERTS GORDON
No
Tel: +44 (0)121 506 7709
www.rg-inc.com
Is there an electrical supply
to the valve terminals?
No
Valve faulty.
Replace with correct type.
Is there an electrical supply
to the valve terminals?
No
Valve faulty.
Replace with correct type.
If problems persist, contact
®
ROBERTS GORDON at
Tel: +44 (0)121 506 7709
www.rg-inc.com
Re check supply to
No
terminals L1 to N.
Check calibration of the
Yes
fan thermostat.
The dial should indicate
the approximate
temperature of the
sampled air.
®
at
Fault lies elsewhere.
Yes
Investigate and correct.
Fault lies elsewhere.
Yes
Investigate and correct.
Fault lies elsewhere.
No
Yes
®
replacement parts.