All installations and services must be performed by qualified service personnel.
DO BURNERS STAY LIT PAST PROOF OF FLAME CHECK?
YES
NO
IS IGNITOR | NO |
POSITIONED CORRECTLY?
YES
CHECK AND CLEAN BURNERS
CHECK FOR PROPER LINE AND MANIFOLD PRESSURE REFERENCE GAS PRESSURE CHART PAGE 31.
OK |
CHECK FLAME PROB2
AND WIRE AND CHECK
POLARITY ON INCOMING
POWER AND GROUND
REPOSITION TO CORRECT LOCATION
IS W2 ENERGIZED?
NO
| YES | DOES INDUCER | NO |
| |||
| GO TO | ||
|
|
| |
|
| HIGH SPEED? |
|
|
|
|
YES |
DOES BURNER | NO | ||
STEP TO HIGH FIRE? |
|
| |
|
|
|
|
| YES |
| |
|
|
|
|
IS THERE LINE
VOLTAGE ACROSS INDUCER POWER TERMINALS "IND HI" TO "IND N"?
YES
CHECK CONNECTIONS
TO INDUCER. IF OK, REPLACE INDUCER.
IS THE HIGH FIRE
PRESSURE SWITCH
CLOSED?
YES
NO
NO
REPLACE
THE
CONTROL.
CHECK
CONTACTS
IN HIGH
FIRE SWITCH
AND FOR
BLOCKAGE IN
FLUE. IF OK,
REPLACE DUAL
PRESSURE
SWITCH.
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