Thermo Pride GMD1-60N Installation And Service Manual page 33

All installations and services must be performed by qualified service personnel.
Yes
DOES THE HOT
SURFACE
IGNITOR ENERGIZE
AND GLOW?
Yes
AFTER HOT
SURFACE IGNITOR
WARM-UP, DOES
GAS VALVE OPEN?
Yes
Yes
IS THERE LINE VOLTAGE
ACROSS INDUCER POWER
TERMINALS "IND" & "IND N"
AT THE INTEGRATED CONTROL?
Yes
CHECK WIRING TO INDUCER
AND IF OK, REPLACE
INDUCER ASSEMBLY.
IS THERE LINE VOLTAGE
ACROSS HOT SURFACE
No
IGNITOR TERMINALS
"IGN" & "IGN N" AT THE
INTEGRATED CONTROL?
Yes
CHECK WIRING TO HOT
SURFACE IGNITOR AND
IF OK, REPLACE HOT
SURFACE IGNITOR ASSEMLBY.
CHECK ACROSS "MV"
TERMINALS ON INTEGRATED
No CONTROL FOR 24 VOLTS DURING
THE 4 SECOND FLAME PROVING
PERIOD AFTER IGNITOR WARM-UP.
IS THERE 24 VOLTS?
CHECK WIRING TO GAS
VALVE AND IF OK,
REPLACE GAS VALVE.
LAMP. RESET BY INTERRUPTING
No
POWER TO CONTROL FOR MORE
THAN ONE SECOND. IF LED STAYS
ON CONTINUOUSLY, REPLACE
CHECK THE INTEGRATED CONTROL
DIAGNOSTIC LED LAMP. RESET BY
No INTERRUPTING POWER TO CONTROL
FOR MORE THAN ONE SECOND. IF
LED STAYS ON CONTINUOUSLY
REPLACE INTEGRATED CONTROL.
No
Yes
32
CHECK THE INTEGRATED
CONTROL DIAGNOSTIC LED
INTEGRATED CONTROL.
SAME AS ABOVE