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SECTION 9: Troubleshooting Guide. Ener-Radiant SP
START
Turn on thermostat
No
Does blower turn
on?
Yes
Check LED indicator on control for indication of
fault. Refer to diagnostic codes on page 17 to
Does the igniter
spark?
No
Yes
No
After ignitor sparks,
does the valve click?
The ignition module 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
Yes
Does the burner
Were the gas lines purged of air?
No
light?
Check inlet gas pressure. Is pressure correct?
Refer to page 13 for correct pressure for unit.
Yes
Check inlet gas shutoff. Adjust regulator.
Is the continuity of
Does the burner
No
the ground wire
stay on?
OK?
No
Yes
Repair wiring.
Does the burner
run until the call
Check the continuity of the ground wire.
No
for heat ends?
If a problem still exists, contact Heatstar, Inc Technical Products Customer
Service 1-866-447-2194
Check Thermostat
and Wiring. Is the
Yes
power supply to unit
115V?
No
Find the source
of the electrical
problem
determine problem.
Is the air intake or
No
exhaust blocked?
Yes
Remove Obstruction
Check wiring and
No
connections
Is the ignitor
Yes
damaged?
No
Check voltage at
ignitor. Is it 1 15V
during ignition
cycle?
No
the LED indicator flashing two times.
No
Yes
Yes
Yes
Contact gas supplier
Are L1 and L2
Yes
No
reversed?
Yes
Repair wiring
Check the thermostat.
Enerco | Heatstar ERSP Series Heater
Remove door. Is
Is blower side door
Yes
voltage at door
in place?
switch 1 15V?
No
No
Check voltage at
Replace door
control.
Check for 1 15V transformer input at "IND"
on Control. If no voltage replace control.
Check wiring and
Replace wiring and/
hose connection to
No
or hose connection.
air switch. Are they
OK?
Yes
Jumper wires at
Is the voltage at
pressure switch.
Yes
the transformer
Does the ignitor
secondary 24V?
spark?
No
Is the voltage at the
transformer primary
Yes
Replace transformer
1 15V
Check LED indicator on control for indication of
fault. Refer to diagnostic codes on page 17 to
Replace ignitor.
No
Is the resistance
Check wire
Yes
through igniter 40
connections.
to 75 ohms?
The switch on the gas valve must be in the on
position and the line purged of air.
Check outlet gas pressure during ignition cycle.
Is the pressure 3.5" w.c. for natural or 10.5"
w.c. for lp?
No
Adjust to proper pressure.
Is the wiring at the
Is the insulation on
ignition module
Yes
the igniter lead OK?
OK?
No
No
Repair wiring
Repair wiring
E-21
Operating Instructions and Owner's Manual
Depress switch.
Yes
Yes
Does blower come
on?
No
Check voltage to
No
motor. Is it 1 15V?
Yes
Is the blower fan
Yes
obstructed?
No
Replace blower
motor.
Replace pressure
Yes
switch.
No
Replace Ignition Module.
determine problem.
Are the wires to
the Ignition Module
No Replace/repair wires.
OK?
Yes
Replace Ignition
Module
Check for proper
Yes
burner orifice and
air plate.
Is the igniter
positioned
No
Yes
properly?
Yes
Is the igniter dirty?
No
Replace igniter
Check door fit. If
damaged, replace
door.
Replace switch.
Remove obstruction
Repair/Replace
Yes
Clean igniter.
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