L.B.White Premier CS700DF Manual Del Propietário página 24

24
Premier Ductable Heater
Troubleshooting Guide
READ THIS ENTIRE SECTION
BEFORE BEGINNING TO
TROUBLESHOOT PROBLEMS.
WARNING
■ This heater can start at any time.
■ Troubleshooting this system may require
operating the unit with line voltage present and
gas on. Use extreme caution when working on
the heater.
■ Failure to follow this warning may result in
property damage, personal injury or death.
The following troubleshooting guide provides
systematic procedures for isolating equipment
problems. This guide is intended for use by a
QUALIFIED GAS HEATER SERVICE PERSON.
DO NOT ATTEMPT TO SERVICE
THESE HEATERS UNLESS YOU
HAVE BEEN PROPERLY TRAINED.
TEST EQUIPMENT REQUIRED
The following troubleshooting guide provides
systematic procedures for isolating equipment
problems. This guide is intended for use by a
QUALIFIED GAS HEATER SERVICE PERSON.
DO NOT ATTEMPT TO SERVICE THIS HEATER
UNLESS YOU HAVE BEEN PROPERLY
TRAINED.
TEST EQUIPMENT REQUIRED
The following pieces of test equipment will be
required to troubleshoot this system with minimal
time and effort.
• Digital Multimeter - for measuring AC voltage
and resistance.
• Low Pressure Gauge - for checking inlet and
outlet pressures at the gas control valve against
dataplate rating.
■ Visually inspect equipment for apparent
damage.
■ Checking all wiring for loose, broken, and worn
connections.
Refer to the system operation sequence in this
section to gain an understanding as to how the
heater operates during a call for heat.
Understanding the sequence of operation is
important as it relates to problem solving.
Owner's Manual • Premier Ductable Heater
The ignition control modules are self diagnostic. The
red LED lights on the control panel will flash a specific
pattern if a heater problem is identified, depending upon
the problem which is diagnosed.
To effectively use the flow charts, you must first identify
what the problem by the flashing pattern of the red
diagnostic light. If the light is flashing, the flash pattern
will be followed by a pause and then a repeat of the
flash pattern until the problem is corrected.
Refer to the table below to identify what page to refer to
when troubleshooting any problems.
Heating Mode Problems
Volt meter does not display voltage .................... 27
L.E.D diagnostic light:
A. L.E.D ON. ....................................................... 27
B. L.E.D OFF. ..................................................... 27
C. One Flash ...................................................... 27
D. Two Flashes ................................................... 28
E. Three Flashes ................................................ 29
F. Four Flashes ................................................... 29
G. Five Flashes .................................................. 29
Ventilation Mode Problem
A. Motor Does Not Run. ..................................... 30
B. Motor "Hums," Does Not Run. ........................ 30
C. Motor Runs with Low Air Output. .................... 30
Components should be replaced only after each step
has been completed and replacement is suggested in
the flow chart. Refer to the Servicing sections as
necessary to obtain information on disassembly and
replacement procedures of the component once the
problem is identified by the flow chart.
DIRECT IGNITION OPERATION SEQUENCE:
• Set heater toggle switch to either upper or duel heating
mode.
- Volt meter(s) activated indicating voltage to the
heater.
• Selector switch is set to HEAT.
• Line voltage is sent to transformer(s) and to ignition
control board(s) (L1).
• Transformer reduces line voltage to 24 volts which is
sent to ignition control board(s) (X).
• Ignition controls module sends 24 volts to thermostat
switch(es).
- Thermostat calls for heat or thermostat switch(es)
are in the MANUAL setting.
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