Market Forge Industries ST-3E ユーザーズマニュアル

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TROUBLE-SHOOTING
TROUBLE
PROBABLE CAUSE
REMEDY
POWER  light  does  not  come  on  when 
the  POWER  switch  is  pressed  into  the 
ON position
No 120v power to unit.
Fuse blown.
Faulty POWER switch.    
1.
2.
3.
Be sure 120v power supply  is on.
Replace fuse.
Check/replace POWER switch (P/n 
08-6549).
1.
2.
3.
Water  enters  the  steam  generator  very 
slowly.
Dirty strainer screen in the water fill 
solenoid valve.
Dirt or lime accumulation on seat of 
water fill solenoid valve.
Low water pressure.
1.
2.
3.
Clean/replace strainer screen.
Clean valve seat.
Check inlet press. (25-50 PSI).
1.
2.
3.
Steam generator will not fill.
Faulty generator fill solenoid valve. 
Faulty  generator  drain  solenoid 
valve.
Lime Build-up on Probe .         
1.
2.
3.
If 120v is verified at the fill solenoid 
coil, (see Fig. 13) but the valve fails 
to open, replace the valve (P/n 08-
6498).
If 120v is verified at the drain sole-
noid coil, (see Fig. 13) but the valve 
fails to close, replace valve (P/n 08-
5021).
Clean  or  Replace  Probe  (P/n  08-
6337).
1.
2.
3.
READY light will not come on.
208/240/480  power  supply  is  not 
on.
Faulty 195°F generator thermostat.
Lime Build-up on Probe.        
1.
2.
3.
Check to be sure 208/240/480 elec-
trical service is turned on.
Check/replace  thermostat  (P/n  08-
6449).
Clean  or  Replace  Probe  (P/n  08-
6337).
1.
2.
3.
Generator will not create steam
208/240/480  power  supply  is  not 
connected or not turned on.
Cooking compartment door is ajar.
Cooking  compartment  door  out  of 
alignment.      
Faulty  door  magnet  or  magnetic 
reed switch.
Lime buildup on probe.  
Faulty circuit breaker (P/n 08-6472 
/ 10-5944).
Faulty steam relay or contactor. 
Faulty control panel TIMER. 
Faulty MODE selector switch
Wiring short.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Check to be sure 208/240/480 pow-
er is connected and on.
Check  to  be  sure  that  the  cooking 
compartment  door  is  closed  and 
latched. 
Check to be sure cooking compart-
ment door is properly aligned.
Check  magnet  (P/n  08-5027).  and 
reed switch (P/n 08-6308). Replace 
if needed.
Clean  or  replace  probe  (P/n  08-
6337).
Check  circuit  breaker  at  your 
208/240/480  volt  service  connec-
tion.  Reset  if  necessary  (P/n  08-
6472/10-5944).
Check/replace  steam  relay  or  con-
tactor if necessary (P/n 08-6472/10-
5944).
Check/replace control panel TIMER 
if  necessary  (Mechanical  08-6464, 
Digital 08-6429).
Check/replace  MODE  SELECT 
switch if necessary (P/n 08-6550).
Check wiring, at terminals.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Generator  continues  to  create  steam 
when the cooking compartment door is 
opened.    
Faulty magnet reed switch (contacts 
failed closed).
Wiring short.
1.
2.
Check  magnetic  reed  switch.  Re-
place if necessary (P/n 08-6308).
Check wiring, at terminals.
1.
2.