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All installations and services must be performed by qualified service personnel.
34
TROUBLESHOOTING GUIDE
THE SYSTEM IS STARTED BY SETTING THE THERMOSTAT TO CALL FOR
HEAT. THE FOLLOWING SHOULD HELP ESTABLISH THE TYPE OF
MALFUNCTION OR DEVIATION FROM THE NORMAL OPERATION.
TO USE THIS DIAGRAM, FOLLOW THE INSTRUCTIONS IN THE BOXES.
TURN THERMOSTAT TO CALL FOR HEAT
DOES THERMOSTAT MAKE CONTACT?
REPLACE TRANSFORMER
CHECK INPUT
POWER, SERVICE
SWITCH AND FUSES
IS INTERNAL DAMAGE
PRESENT ON THE
TRANSFORMER?
ARE WIRES CONNECTED
PROPERLY?
CORRECT WIRE
CONNECTIONS
COOL THE THERMOSTAT
IS ROOM TEMPERATURE
BELOW THERMOSTAT
SETTING?
TURN T'STAT
SETTING ABOVE
ROOM TEMP.
REPLACE
THERMOSTAT
IS THE TRANSFORMER
SUPPLYING 24 VOLTS
TO THE THERMOSTAT?
CHECK FOR
CONTINUITY
& PROPER
CONNECTIONS
IS THE INDUCER
BLOWER OPERATING?
Yes
Yes
No
NoNo
Yes
No No
Yes Yes
Yes
No
No No
YesYes
IS ROOM
TEMPERATURE
ABOVE
90 DEGREES F?
IS THERE 24 VOLTS
ACROSS "TH" & "TR"
AT THE INTEGRATED
CONTROL?