14.5 Troubleshooting for Solenoid Valves Circuit

START

 

 

 

Is there pressure on the

Yes

Is there an electrical supply

Yes

outlet of the valve when the

to the valve terminals?

valve should be closed?

 

 

 

 

 

No

 

 

 

Valve faulty.

 

 

 

Replace with correct type.

 

No

 

 

 

Fault lies elsewhere.

Investigate and correct.

Does valve open at the

No

correct time?

 

Yes

Valve Operating

TROUBLESHOOT ENDS. No

Is there an electrical supply

Yes

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

Fault lies elsewhere.

Investigate and correct.

14.6 Troubleshooting for Main Fan Circuit (1 Ø)

START

 

Press in white button

 

Re check supply to

 

 

Main fan will not operate

No

No

 

Fault lies elsewhere.

of fan/limit thermostat

No

terminals L1 to N.

following warm up

 

and retest.

 

 

 

 

 

 

 

 

period of heat exchanger.

 

 

 

 

 

 

 

 

 

 

 

Check for 230 V

 

Yes

 

Yes

 

 

at terminals 1 to N.

 

 

 

 

 

 

 

 

 

 

 

 

Check the setting of the

Yes

Check calibration of the

 

 

 

 

fan thermostat as in

fan thermostat.

 

 

 

 

 

 

 

 

 

Figure 13.

 

The dial should indicate

 

 

 

 

 

 

the approximate

 

 

 

 

 

 

temperature of the

 

 

 

 

 

 

sampled air.

 

 

 

 

No

 

 

 

 

 

 

Fan thermostat faulty.

 

 

 

 

 

 

Replace and reset.

 

 

 

 

Yes

 

 

 

 

 

 

Check and test wiring to motor. Does the motor run No

now?

Yes

 

Motor stops after running

Yes

some time.

 

No

Motor running.

TROUBLESHOOT ENDS. No

Motor faulty.

Replace complete fan unit.

Thermal overload in motor

is faulty.

Replace complete fan unit.

If problems persist, contact ROBERTS GORDON® at Tel: +44 (0)121 506 7709 www.rg-inc.com

For your safety and optimum heater performance, use only ROBERTS GORDON® replacement parts.

Conduct Commissioning procedure as shown on Page 33, Section 10.

Page 55
Image 55
Roberts Gorden POP-ECA/PGP-ECA 015 to 0100 service manual Troubleshooting for Solenoid Valves Circuit

POP-ECA/PGP-ECA 015 to 0100 specifications

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