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TROUBLE SHOOTING CONTROL BOARD
TO IMPROVE DIAGNOSING AND SERVICING, THIS CONTROL MODULE IS EQUIPPED WITH A
SELF-DIAGNOSING RED INDICATOR LIGHT. TO INDICATE STAND-BY MODE AND PROPER
OPERATION, THIS LIGHT WILL REMAIN OFF. IF THERE SHOULD BE A MALFU2'_CTION, THE
LIGHT WILL FLASH A VARYING NUMBER OF TRIES WITH A PAUSE BETWEEN EACH SERIES
OF FLASHES. THE NUMBER OF FLASHES WILL INDICATE WHICH CIRCUIT TO CHECK.
# OF REASON"FOR
FLASHES INDICATION (_ORRECT1VE A(_TION
1 Air flow fault a.) a.) Connect or replace tubing.
Flame - no call
for heat
Ignition Lock Out
(3 Attempts)
b.)
c.)
d.)
e.) Defective draft inducer.
a.) Defective gas valve.
b.) Detective control module.
c.) Defective thermostat wire.
a.) Defective ignitor.
b.) Ignitor cable disconnected -
POSSIBLE CAUSES
Pressure switch tubing disconnected
or damaged.
Pressure switch tubing to wrong b.)
connections.
Wire disconnected or damaged, c.)
Obstruction in vent pipe. d.)
e.)
a.)
b.)
c.)
a.)
b.)
Correct robing connection.
Replace or connect wire.
Remove obstructions.
Replace draft inducer.
Replace gas valve.
Replace control module.
Check and replace therlnostat wire.
Replace ignitor.
Connect ignition cable.
Heater is in one
hour lockout mode. c.)
This one hour
lockout canbeby- d.)
passed by resetting
the thermostat
no aas to burner.
Manual gas control in OFF
position.
Loose or damaged wire to gas
valve.
c.) Turn manual gas control to ON
position.
d.) Connect or replace wire to gas valve.
MAINTENANCE INSTRUCTIONS
For correct and sate operation, keep heater and heater area clean.
At regular intelwals, turn control valve to OFF, let heater cool and
clean inside control and heat exchanger compartments.
To clean outside cover, use a damp cloth, do not use any kind of
solvent of cleaning fluid as they may leave a residue that could
burn or give off odors when heater is mined on.
Have heater, including vent system, checked, cleaned and/or
repaired by a qualified selwice person prior to use each year.
Follow a regular selwice and maintenance schedule for safe and
efficient operation.
Do not obstruct combustion, ventilation or circulating air.
If any components are relnoved, make sure all gaskets are reinstalled
and are in good condition. If any sign of damage, replace gasket as
this is a sealed system and must be air-tight for proper operation.
DO NOT operate heater with any gasketmissing or damaged. Failure
to replace a missing or damaged gasket may result in property
damage, personal injury or loss of life.
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SERVICE RECORD
DATE DATE DATE