Doyon JA8 Manual page 33

If steam device of the oven does not work
properly.
If the OVERHEAT WARNING light is on,
and you hear the warning buzzer.
OPTIONAL
Manual fill water pan.
The warning red light in the front control
panel stays on when the water pan is full.
If there is no light in the proofer.
If there is no heat in the proofer.
If there is no humidity in the proofer.
The oven must have been heating for at least half
an hour before you use the steam system. If not,
water will appear at the bottom of the oven.
Check if the water supply valve (of the building)
is open.
Check if the water needle valve (of the oven) is
open one eighth of a turn. Just close it and open it
one eighth of a turn maximum.
Check the solenoid valve.
Check the preset steam timer in the back control
box.
Be sure to inject steam while the fan is running.
The steam button light should lite during the
steam injection.
Check if the cooling fan airflow is not obstructed.
Check the cooling fan if it is running. If not, call
a qualified technician to replace it.
(Electrical components may be damaged if it is
not repaired immediately.)
You have no more water in the principal water
pan.
Check if the water line is not in air lock
condition. Disconnect the water line at the inlet
of the green solenoid valve and clean the strainer
filter.
Also clean the principal water pan and the float
switch.
1. Verify every breaker in front of the proofer.
2. Verify the main proofer switch and the main
proofer contactor.
1. Verify every breaker in front of the proofer.
2. Verify whether the pilot light will function by
raising the thermostat to a higher setting. If
yes, verify element. If not, verify pilot light,
thermostat or contactors.
Verify whether the pilot light works when you
increase the humidity to the position high. If yes,
verify if water comes in the reservoir and check
the water level switch box and the float switch.
Verify if limestone obstructs the waterflow. If
the float switch is working fine, verify the
contactor P1 and the immersion element. If the
pilot light does not lite, verify the pilot light and
the infinite switch.
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