Blue Seal turbofan E311 Service Manual Download

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Revision 5/F3534

Moffat Ltd, April 2005

Turbofan Convection Oven

Check voltage to the bottom terminal of the
switch. If there is no voltage, then check wiring.

With switch depressed, check for voltage at top
terminal. If there is no voltage then replace
switch. If voltage correct, check wiring to

solenoid coil.

If the power supply to the coil is correct,

disconnect wiring to coil and check the

resistance of the coil windings.

Correct coil resistance: 2500 ohms

NOTE:

If open circuit / high resistance, then the
coil is faulty—replace.

If coil resistance is correct, rewire and listen for
an audible solenoid click when the steam switch
is depressed.

If solenoid can be heard functioning, and oven
water nozzle is not blocked, then remove

water solenoid and fittings and check for

blockages.

6.1.6 CONTINUOUS WATER OUT OF OVEN

WATER NOZZLE (US/CANADA ONLY)

Water solenoid electrical fault

With control panel steam switch not

depressed, check for power supply across

solenoid coil. If there is power to the coil, then
check wiring and steam switch (refer 6.1.5).

6.1.7 60 MINUTE TIMER NO TIME UP BUZZER

Buzzer faulty

With timer in ‘zero’ position, check the buzzer at
top of control panel (inside) for voltage across
terminals. If voltage is correct then buzzer is
faulty—replace.

If there is no voltage, then check wiring.

Timer not switching on buzzer

With timer in zero position, check voltage to top
connection (terminal 1) and bottom connection
(terminal 2) of timer. If there is no voltage at
terminal 1 then check wiring.

6.1.9 NO HEAT

Power relay faulty - From S/N 232054

Check voltage to terminal 7 on power relay (on
rear panel of oven). If there is no voltage then
check wiring to the relay.

6.1.8 60 MINUTE TIMER NO TIME UP

INDICATOR

Indicator faulty

With the timer in the zero position, check for
voltage across the indicator light. If correct, then
the indicator light is faulty—replace.

If there is no voltage then check wiring.

Buzzer

Buzzer Terminals

Figure 6.1.2

If no voltage at terminal 2 then timer is faulty—
replace.

NOTE:

Timer will continue to run for

approximately three minutes below zero.
Buzzer and time up indicator will

continue until the timer manually
switched off (to vertical position).

Hold relay faulty - From S/N 232054

Check voltage to terminal 1 on oven

thermostat. If there is no voltage then check
voltage at terminals 1 and 7 on hold relay (inside
control panel). If there is no voltage to terminal 7
then check wiring. If there is no voltage at
terminal 1 then check that the relay is not

energised (i.e. there should be no power between
terminals A and B on the relay). If the relay is not
energised, and there is no voltage at terminal 1

Power
Relay

Figure 6.1.3

Ensure that the power switch on the unit is turned
on, and check for voltage at terminal 4 of the
power relay. If there is no voltage at 4 then check
that the relay is energised (i.e. voltage between
terminals A and B. If not then check wiring. If
there is voltage and there is no power at terminal
4 then the relay is faulty - replace.

If there is voltage at terminal 4 then check the
hold relay and the thermostat (refer below).