Troubleshooting - Heat & Glo ST-HVBI-AU Installation And Operation Instructions Manual

F. TROUBLESHOOTING
With proper installation and maintenance, your new Gas Heater should provide years of trouble-free service. If you
do experience a problem, refer to the Troubleshooting Guide below. This guide will assist a qualifi ed service person
in the diagnosis of problems and the corrective action to be taken.
Electronic Ignition System
Symptom
1. No transmission, motor does
not turn.
2. No ignition. No tone.
3. No ignition; one 5 seconds
continuous tone (7 shorts beeps
might be heard prior to the 5
seconds tone).
4. No pilot fl ame and control con-
tinues to spark.
5. Pilot is lit and control continues
to spark. Valve shuts off after
10 to 30 seconds. Valve oper-
ates manually.
6. Pilot is lit, sparking stops if a
fl ame is present. Valve shuts off
after 10 to 60 seconds. Valve
does not work manually.
7. 3 short beeps while the motor
turns.
8. Pilot fl ame lights but there is no
main gas fl ow.
9. Pilot sparks, but pilot will not
light.
Possible Causes
a. Receiver must learn new
code.
a. Receiver
a. ON/OFF switch is in OFF
position.
b. Loose wire.
c. Receiver.
d. Bent pins on 8 wire connector.
e. Valve.
a. Air in the pilot supply line.
b. Thermocouple circuit wired
incorrectly.
c. No spark at pilot burner
d. Valve.
e. Over tightened thermocouple
interrupter.
f. Receiver.
a. Receiver.
a. Thermocouple.
b. Low inlet pressure to valve.
c. Valve.
a. Batteries are low.
a. Manual override know (if
equipped) is in MAN position.
b. Valve turned don to pilot fl ow.
c. Low inlet pressure to valve.
a. Correct gas supply.
b. Ignitor gap is too large.
c. Module is not grounded.
Heat & Glo • ST-HVBI-AU • 2082-900 Rev. J • 10/10
Corrective Actions
Press and hold the receiver's reset button until you hear 2 acoustic
signals. After the second longer acoustic signal, release the reset
button and within the subsequent 20 seconds, press the down ar-
row on the remote handset until you hear an additional long acoustic
signal confi rming the new code is set.
Replace receiver and reprogram code.
Push switch to ON position.
Secure wire.
Replace receiver and reprogram.
Straighten pins on 8 wire connector.
Replace valve.
Purge the line or start ignition several times.
Check polarity of the thermocouple wires.
Check spark gap, check wiring connection. Check for spark in loca-
tion along cable.
Replace valve. Do not over tighten.
Replace valve and thermocouple interrupter.
Replace receiver and reprogram code.
Replace receiver and reprogram code.
Replace thermocouple.
Confi rm suffi cient inlet pressure to the valve. Adjust or replace inlet
regulator if necessary.
Replace valve and the thermocouple interrupter.
Replace batteries - quality alkaline recommended. WARNING: Cre-
ating an electrical short between the batteries/battery box and metal
parts of the appliance may render the receiver inoperable.
Turn Manual override know to ON position.
Turn fl ame to high fi re by pressing up button on remote handset.
Confi rm suffi cient inlet pressure to the valve.
Verify that incoming gas line ball valve is "open". Verify that inlet
pressure reading is within acceptable limits, inlet pressure must not
exceed 50 mbar.
Verify that spark gap from ignitor to pilot hood is .43 cm.
Verify module is securely grounded to metal chassis of heater.
33