Roberts Gorden HE25UT, HE20ST, HE50DL, HE45UT, HE30DL, HE50ST Chart Multiburner, Troubleshooting Flow

Turn up thermostat.	No	Is there power (230V)
Does the fan turn on?		to the control panel? Yes
		No

Check clock program.

Reset as required.

No
Is the clock set to on? Yes	Is there power output	No
	to the fan?
	Yes

Refer to control panel

IOS manual for troubleshooting.

16.2 Troubleshooting Flow

Check thermostat

and replace if necessary.

Yes
After 20 second pre-purge	Unplug burner and check
Is there spark at the igniter? No	electrode and ignition wire.No
	Are they damaged?
	Yes
	Replace electrode and
	ignition wire as needed.

Fan motor may have to	No
be replaced.

Is the igniter gap	Yes
set at 3 mm?
No
Carefully reset gap
to 3 mm.

Disconnect power to the

motor. Does the

motor turn freely?

No

Is there an obstruction to

the pump impeller?

Is the flue pipe or

the inlet of the

burner obstructed?

No

Are the hoses to the

pressure switch secure

and leak free?

Yes

Yes

Yes

Yes

Motor may have have		Is the motor connected
tripped overload switch.	No	properly? Refer to the
Wait 10 - 15 minutes for		wiring diagrams on the
automatic reset.		motor and in the
		installation manual.
Remove obstruction.

Remove obstruction.

Repair, replace or

tighten hoses as necessary.

Chart (Multiburner)

65 of 73

Replace automatic		Remove electrical plug
	No	from the pressure switch;
control unit.
		place jumper between
		black & white leads.
		Does the fan turn on?
		Yes
		Replace pressure switch.

SECTION 16: TROUBLESHOOTING