Roberts Gorden BH50UT/EF, BH35UT/EF, BH30UT/EF, BH40DL Troubleshooting Flow Chart Multiburner

68 of 74

Yes

Do all burners light? No

Yes
Do the burners	No
stay on?

Yes

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

Re-establish continuity.

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

Specifications Section

of this manual?

Yes

Is there gas outlet pressure

Yes available during the ignition period?

No Replace/Correct wires.

Is the wiring at the

No module properly connected?

No

Re-establish connections.

No

No

Yes

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 (Multiburner)

BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL

Is the system leaking water? Yes

No
Do the burners 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

Is the vacuum setting		Are there any "dead" burners		Is the rotation of the pump		Manifold ID/ID Connectors
	No		No		Yes	may be installed improperly.
too low?		in a branch?		motor correct?		High temperature silicone
Yes		Yes		No		sealant should be used at
						all connections.
Adjust system for proper		Follow burner check		Consult venting and wiring
vacuum. See				sections of this manual
		procedure given above.
Specification Section.				for reversal instructions.
Check the
control panel.