Roberts Gorden BH30DL, BH35UT/EF Troubleshooting Flow Chart Linear, Double Linear and U-Tube

Models: BH45ST/EF BH20UT BH50ST/EF BH55ST BH70DL/EF BH45UT/EF BH50UT/EF BH40UT/EF BH30DL BH15UT BH25ST/EF BH30ST/EF BH50DL/EF BH40ST/EF BH15ST BH20ST BH25UT/EF BH60DL/EF BH35ST/EF BH40DL BH30UT/EF BH35UT/EF

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Yes

Does the burner light?

No

Yes

 

Does the burner

No

stay on?

 

Yes

 

Does the burner turn off

No

when the call for heat ends?

Yes

 

TROUBLESHOOT ENDS.

If problems persist, contact

Roberts-Gordon at

Tel: +44 (0)121 506 7700 or

Fax: +44 (0)121 506 7701 or

online at www.rg-inc.com

Were the gas lines

No

purged of air correctly?

 

Yes

 

Is there sufficient inlet gas pressure (See Specification Yes

Section) during ignition?

No

Check gas line stop cock. Check gas supply at meter.

Contact gas company.

Is the continuity of the

Yes

earth wire established?

 

No

 

Reestablish continuity.

 

Check the thermostat and check the continuity of the ground wire.

Purge Lines.

Measure voltage on valve terminals. Is there 230 V during ignition time?

No

Are the wires connecting the automatic control unit OK?

Yes

Replace automatic

control unit.

Are the Live and Neutral

reversed?

Yes

Reverse polarity.

Check for the proper jet and air plate inside the burner.

Yes

Is the gas outlet pressure

in accordance with

specification section No of this manual?

Yes

Yes

Is there gas outlet pressure

No

available during the

 

ignition period?

 

No

Replace/Correct wires.

 

No

Is the wiring at the

Yes

module properly

 

connected?

 

 

No

 

 

Re-establish connections.

 

Adjust the governor

pressure.

Replace solenoid

coil.

Ignition module may have failed. Replace module.

Yes

Is the insulation on the electrode/sensor leads OK?

No

Replace/Correct

Wires.

Troubleshooting Flow Chart (Linear, Double Linear and U-Tube)

BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL

Page 72
Image 72
Roberts Gorden BH30DL, BH35UT/EF, BH30UT/EF Troubleshooting Flow Chart Linear, Double Linear and U-Tube, Troubleshoot Ends