Section 8 Troubleshooting - HeatStar ER2STG 60-100 Manuel Du Propriétaire Et Mode D'emploi

SECTION 8: Troubleshooting Guide. Heatstar ER2STG
START
Turn on thermostat
No
Does blower turn
on?
Yes
Check LED indicator on Ignition Control for
indication of fault. Refer to Ignition Module
testing on page 19 to determine problem.
Does the igniter
No
warm up and glow
red?
Yes
No
After ignitor warm-
up period, 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 12 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 Enerco Group, Inc Technical Products
Customer Service 1-866-447-2194
Check Thermostat
and Wiring. Is the
Yes
power supply to unit
120V?
No
Find the source
of the electrical
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 120V
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.
Remove door. Is
Is blower side door
Yes
voltage at door
in place?
switch 120?
No
No
Check voltage at
Replace door
Ignition 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?
glow red?
No
Is the voltage at the
transformer primary Yes Replace transformer
120V
Check LED indicator on Ignition Module for
indication of fault. Refer to Ignition Control
testing on page 19 to determine problem.
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.
Refer to page 12 for correct pressure
No
Adjust to proper pressure.
Is the wiring at the
Is the insulation on
Ignition Module
Yes
the sensor lead OK?
OK?
No No
Repair wiring Repair wiring
A fault indication of three flashes may indicate
that the flame sensing circuit is not functioning
properly. Perform the following series of checks
to correct the problem.
20
Check door fit. If
Depress switch.
Yes
Yes damaged, replace
Does blower come
on?
No
Check voltage to
No Replace switch.
motor. Is it 120V?
Yes
Is the blower fan
Yes Remove obstruction
obstructed?
No
Replace blower
motor.
Replace pressure
Yes
switch.
No
Replace Ignition
Module.
Are the wires to
the Ignition Control
No Replace/repair wires.
OK?
Yes
Replace Ignition
Module.
Check for proper
Yes
burner orifice and
air plate.
Is the sensor
positioned Repair/Replace
Yes No
properly?
Yes
Is the sensor dirty?
Clean sensor.
No
Replace Sensor
door.
Yes