Blue Seal E1100, Service Manual

-21- 

Revision 4/F3591 

© 

Moffat Ltd, August 2004 

No power to timer  

Check the voltage at terminal 5 on underside 
of the 180 minute timer. 
Check  that  one  lead  of  timer  motor  is  
connected to terminal five of timer and the 
other lead is connected to neutral of ‘Roast ’n 
Hold’ switch. 
If voltage at terminal 5 is correct and wiring is 
correct then the timer motor is faulty—replace 
timer. 

6.1.11 ROAST TIMER (180 MINUTE) WILL 

NOT TIME DOWN 

‘Roast ‘n Hold’ switch faulty 

Check if the switch latches.  If the switch does 
not latch then the switch is faulty—replace. 
With  the  switch  latched,  check  voltage  to  
terminal 2.  If there is no voltage then check 
for fault in wiring. 
Check voltage to terminal 1.  If there is no 
voltage then switch is faulty—replace. 

NOTE:   

When the switch is latched, it should 

illuminate if operating correctly. 

Indicator faulty  

Check  the  voltage  across  the  indicator  
terminals.  If the voltage is correct then the 
indicator is faulty—replace. 
If there is no voltage then check wiring. 

6.1.12  NO HOLD INDICATOR 

Timer faulty

NOTE:

 Timer in ‘HOLD’ position (vertical) and 

‘Roast n Hold’ switch on  (illuminated). 
Check the voltage at terminal 3 of timer, with 
timer in hold position.  If the voltage is correct 
then check wiring. 
If there is no voltage then check voltage at  
terminal 1 of timer.  If there is voltage at  
terminal 1, but no voltage at terminal 3 with 
timer in hold position then timer switch is 
faulty—replace. 

Hold thermostat faulty  

With the power switch on and illuminated, 
‘Roast ‘n Hold’ switch on and illuminated, and 
the roast (180 minute) timer set to hold, check 
that the hold indicator is illuminated. 
With a cold oven (ie room temperature) check 
that the oven burners are on.  If burners are 
not operating, check the voltage at terminal 2 
of the hold thermostat.  If there is no voltage 
then check wiring. 
If the voltage is correct, and the thermostat is 
adjusted above oven temperature, then check 
for output voltage at terminal 1 (bottom) of 
hold thermostat.  If there is no voltage then 
the thermostat is faulty—replace. 

6.1.13 HOLDING TEMPERATURE  
 INCORRECT 

If there is no power at terminal 5, check for 
power supply at terminal 4 of timer.  If there is 
voltage at terminal 4 and not at terminal 5 with 
timer set, then timer switch is faulty—replace 
timer.  If terminal 4 voltage is correct, check 
wiring to roast n hold switch. 

Figure 6.1.2 

Terminal 4 

Terminal 1 

Terminal 2 

Terminal 5 

Terminal 3 

Terminal 6 

thermostat on and off cycle.  The thermostat 
should cycle on and off between 165°C and 
195°C when set to the above temperature.  If 
oven temperature is outside these ranges, 
then the thermostat   requires recalibration. 

NOTE: 

Thermostat cycling span should be 
±15°C 

Element faulty (blown) 

With the thermostat on and heating check 
voltage across element terminals at RH side 
of oven.  If the voltage is correct then check 
the current draw of each element.  If there is 
no  current  draw  then  element  is  faulty—
replace. 
If there is no voltage then check voltage is  
being supplied to each element coil from the 
heating contactor.  If no voltage to elements, 
check contactor operation (refer 6.1.4) and 
wiring. 

NOTE:  

Correct element current draw:  

14.3A ± 2.5% (per element)