Enerco ERXL-175L, ERXL-60, ERXL-80S, ERXL-150L Troubleshooting Guide. Ener-Radiant XL, Start

SECTION 8: Troubleshooting Guide. Ener-Radiant XL

START

Turn on thermostat

Does blower turn

on?

Yes

Does the igniter

warm up and glow

red?

Check Thermostat

No and Wiring. Is the

power supply to unit

115V?

No

Find the source of the electrical problem

Check LED indicator on SmartValve for

indication of fault. Refer to SmartValve testing

on page ?? to determine problem.

Is the air intake or

No exhaust blocked?

Yes

Remove Obstruction

Yes	Is blower side door		Yes		Remove door. Is	Yes	Depress switch.
					voltage at door		Does blower come
	in place?
					switch 115V?		on?
	No				No		No
	Replace door				Check voltage at		Check voltage to
					gas valve.		motor. Is it 115V?
							Yes
		Check for 115V transformer input at plug C3
		on SmartValve. Check for 115V output of					Is the blower fan
		C3. If no output voltage is present replace					obstructed?
				SmartValve.
							No
	Check wiring and
No	hose connection to		No		Replace wiring and/		Replace blower
	air switch. Are they				or hose connection.		motor.
	OK?
	Yes
					Jumper wires at
	Is the voltage at
			Yes		pressure switch.	Yes	Replace pressure
	the transformer
					Does the ignitor		switch.
	secondary 24V?
					glow red?
	No					No

Check door fit. If Yes damaged, replace

door.

No Replace switch.

YesRemove obstruction

Yes

		Is the voltage at the			Replace SmartValve.
Check wiring and
	No	transformer primary	Yes	Replace transformer
connections
		115V

No

Is the ignitor

damaged?

No

Check voltage at ignitor. Is it 115V during ignition cycle?

Yes	Replace ignitor.
	No

Is the resistance

through igniter 40

to 75 ohms?

Check LED indicator on SmartValve for

indication of fault. Refer to SmartValve testing

on page ?? to determine problem.

Yes	Check wire
	connections.

After ignitor warm- up period, does the valve click?

Yes

Does the burner

light?

No

The SmartValve checks the status of the blower proving switch contacts must see a change in the

contact with every firing cycle. Placing a jumper at the switch out of sequence will result in a fault with

the LED indicator flashing two times.

No	Were the gas lines purged of air?	No	The switch on the gas valve must be in the on
			position and the line purged of air.

Are the wires to the SmartValve OK?

Yes

Replace SmartValve

No Replace/repair wires.

	Yes
	Check inlet gas pressure. Is pressure correct?	Yes	Check outlet gas pressure during ignition cycle.	Yes	Check for proper
			Is the pressure 3.5” w.c. for natural or 10.5”		burner orifice and
	Refer to page 40 for correct pressure for unit.
			w.c. for lp?		air plate.
Yes
	Yes		No
	Check inlet gas shutoff. Adjust regulator.		Adjust to proper pressure.
	Contact gas supplier

Does the burner		Is the continuity of	Yes	Are L1 and L2		Is the wiring at the		Is the insulation on
	No	the ground wire			No		Yes
stay on?				reversed?		SmartValve OK?		the sensor lead OK?
		OK?
		No		Yes		No		No
Yes				Repair wiring		Repair wiring		Repair wiring
		Repair wiring.
Does the burner
run until the call	No	Check the continuity of the ground wire.
for heat ends?		Check the thermostat.				A fault indication of six flashes may indicate
						that the flame sensing circuit is not functioning
If a problem still exists, contact Enerco Technical Products Customer Service						properly. Perform the following series of checks
						to correct the problem.
		1-800-251-0001

Is the sensor

Yes positioned properly?

Yes

Is the sensor dirty?

No

Replace Sensor

No Repair/Replace

Yes

Clean sensor.

Enerco enerRadiant® XL Series Heater 23 Operating Instructions and Owner’s Manual