All installations and services must be performed by qualified service personnel.
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.
NOTE: CHECK DIAGNOSTIC CODE THROUGH VIEW PORT PRIOR TO REMOVING ACCESS DOOR.
TURN THERMOSTAT TO CALL FOR HEAT DOES THERMOSTAT MAKE CONTACT?
Yes
No
IS ROOM TEMPERATURE BELOW THERMOSTAT SETTING?
No
IS ROOM
TEMPERATURE
ABOVE
90 DEGREES F?
Yes
No
TURN T'STAT SETTING ABOVE ROOM TEMP.
Yes
COOL THE THERMOSTAT
IS THE TRANSFORMER SUPPLYING 24 VOLTS TO THE THERMOSTAT?
Yes
REPLACE
No |
| No |
|
ARE WIRES CONNECTED | CORRECT WIRE | ||
| PROPERLY? |
| CONNECTIONS |
|
|
|
|
|
|
|
|
Yes
THERMOSTAT
IS INTERNAL DAMAGE | No | |
PRESENT ON THE | ||
| ||
TRANSFORMER? |
|
Yes |
REPLACE TRANSFORMER
CHECK INPUT
POWER, SERVICE SWITCH AND FUSES
IS THE INDUCER
BLOWER OPERATING?
Yes
No
IS THERE 24 VOLTS ACROSS "TH" & "TR"
AT THE INTEGRATED
CONTROL?
Yes
No
CHECK FOR CONTINUITY
&PROPER CONNECTIONS
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