Roberts Gorden BH30UT/EF User Manual

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Replace ignition

module.

Is there power out

from pin 10 on ignition module?

Replace Fan.

Turn up thermostat. Does the fan turn on?

Place a jumper across

the thermostat terminals.

Does the fan turn on?

Check thermostat wiring and replace thermostat if

necessar

y.

Is there power (230V)

at the burner?

Check relay wiring

(if applicable) and wiring

to the burner

.

Remove Black & White

leads from the pressure switch; place jumper between leads.

Does the fan turn on?

Replace pressure switch.

Remove obstruction.

Unplug burner

.

Does the fan turn freely?

Is the fan obstructed?

Fan bearings may have

failed. Replace fan.

Remove obstruction.

Repair

, replace or

tighten hoses as necessar

y.

Is the flue pipe or

the inlet of the

burner obstructed?

Are the hoses to the pressure switch secure and leak free?

Remove Black and Y

ellow

leads from the pressure switch; place a jumper between leads.

Is there a spark?

Replace pressure switch.

Is the igniter gap

set at 3 mm?

Carefully reset gap

to 3 mm.

Replace automatic

control unit.

Unplug burner and check electrode and ignition wire.

Are they damaged?

Replace electrode and ignition wire as needed.

Is there spark at the igniter?