Schwank bistroSchwank 2-Stage - Manual (Page 37)

2100 / IO 100 Manual
IM110107
RD: MAY 2014
R.L. 4A
37
MAIN BURNER LIGHTS
SPARK STOPS WHEN
BURNER LIT.
DOES FLAME REMAIN
STABLE AFTER THE
SPARK CYCLE IS COM-
PLETE. (NO FLAME FAIL)
*
CHECK FOR CORRECT MANIFOLD GAS PRESSURE
*CHECK FOR OBSTRUCTION IN GAS SUPPLY OR
ORIFICE (INSECTS, SPIDERS COCOONS ETC.)
CHECK SENSOR FLAME SIGNAL WITH METER FOR
0.7µA MINIMUM STEADY READING.
IF READING IS LOW CHECK GAS PRESSURE
IF OK .....CHANGE SENSOR.
CHECK FOR CONTINUITY OR SENSOR CABLE AND
GROUND WIRE.
CHECK THAT BURNER FLAME COVERS ALL ELEC-
TRODES. IF CHECKS ARE OKAY, REPLACE CONTROL
MODULE.
NOTE: IF GROUND IS POOR OR ERRATIC, SHUT-
DOWN MAY OCCUR OCCASIONALLY EVEN THOUGH
OPERATION IAPPEARS NORMAL AT THE TIME.
CHECK FOR PROPER TEMPERATURE CONTROLLER
OPERATION.
CHECK SENSOR FLAME SIGNAL WITH METER FOR
0.7µA MINIMUM STEADY READING.(REPEAT ABOVE)
CALL FOR HEAT ENDS;
SYSTEM SHUTS OFF
TROUBLE SHOOTING ENDS
NOTE: IF CONTROL GOES INTO LOCKOUT, THE SYSTEM CAN BE
RESET BY INTERRUPTING THE POWER SOURCE
NO
YES
YES
NO
YES
NO
NO
CHECK FLAME SIGNAL WITH METER FOR 0.7µA.
IF READING IS LOW CHECK GAS PRESSURE, IF OK
CHANGE SENSOR.
CHECK FOR CONTINUITY OR SENSOR CABLE AND
GROUND WIRE.
CHECK THAT BURNER FLAME COVERS ALL ELEC-
TRODES.
IF CHECKS ARE OKAY, REPLACE CONTROL MODULE.
SYSTEM RUNS UNTIL
CALL FOR HEAT ENDS
CHECK AND ADJUST TEMPERATURE CONTROLLER
SETTING AND CHECK CONTROLLER CONNECTIONS
CHECK FOR PINCHED WIRING.
REMOVE VALVE LEAD AT CONTROL IF VALVE
CLOSES, RECHECK TEMPERATURE CONTROLLER
AND WIRING;
IF VALVE DOES NOT CLOSE REPLACE GAS VALVE.
YES
NO