General Trouble-Shooting - Market Forge Industries STEAM-IT ST-AG Service & Parts Manual

5-2
ST-AG STEAM-IT COOKER
TABLE 5-2
GENERAL TROUBLESHOOTING GUIDE
CONDITION I
IIUN
PIN
1) INDICATOR LIGHT FAILS TO LIGHT WITH TIMER SET
a) Power to STAG off
Make sure external circuit breaker for incoming
N/A
power is in ON position
b) Indicator light burned out
Replace light
10-6683
c) Faulty wiring
Inspect condition of wiring and tightness of all
N/A
connections
d) Timer contacts faulty Replace Timer
10-6291
e) Unit will not stay on Reverse Polarity (reverse black & white wire)
N/A
2) GAS BURNERS FAIL TO IGNITE
a) Extemal gas supply Open gas supply shut-off valve N/A
b) Gas solenoid valve fails in closed position Clean or replace valve
10-7694
c) Faulty ignition control board Replace ignition control board
10-7696
d) Electrode unit malfunctioning Clean carbon off electrode or replace 10-7697
e) Damaged or loose wiring Trace all wiring from control board to controls.
Check to see that all wiring is secure, and that
N/A
high and low voltage leads to electrode are
properly connected
f)
Gas pressure not per specification
Adjust or replace pressure regulator
09-7018 NAT.
(Water Column 3 1/2" Nat, 10" L.P.)
09-7019 L.P.
3) STEAM FAILS TO BUILD UP IN COMPARTMENT
a) Compartment door not latched securely Close door and engage handle in latch. If steam
fails to build up after door is secured, the problem
10-2666
may be that the door seal requires adjustment or
replacement
b) Steam trap not sealing properly Clean steam trap wI hot soapy water or replace
10-6156
c) Gas burners not igniting Refer to Problem # 2 N/A
d) Safety valve fails to close
Replace safety valve
10-7955
e) Safety valve opens intermittently Open and close valve to clear blockage
N/A
4) EXCESSIVE STEAM PRESSURE IN COMPARTMENT (ABOVE 15 LBS.)
a) Safety valve fails in closed position Replace safety valve
10-7955
b) Pressure switch setting too high
Adjust or replace pressure switch
95-3720
5) BUZZER FAILS TO SOUND AT END OF COOKING CYCLE
a) Faulty wiring
Check wiring from buzzer to terminal block and
N/A
timer
b) Faulty buzzer Replace buzzer
10-6682
c) Faulty timer Replace timer
10-6291
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52127