GSi COMPETITOR 2000 Series, Руководство по эксплуатации и обслуживанию

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48
SERVICE
Problem
Display shows "LOSS OF FLAME" message.
Display shows "HOUSING HIGH
TEMPERATURE" message.
Display shows "REAR DISCHARGE WARNING" message.
Display shows "OUT OF GRAIN" message.
Display shows "PLENUM HIGH TEMPERATURE"
message.
Display shows "NO AIRFLOW" message.
Fan motor will not start.
Top auger will not start.
Possible Cause
The flame sensor has failed to detect a burner flame,
indicating that the burner has failed to light, there is a
problem with the flame sensing circuitry or the dryer is not
getting burner fuel.
The temperature high limit located on the fan/burner housing
has opened, indicating an over temperature condition has
occurred towards the rear of the fan/heater housing. (This
control is a 200
°
F limit control that must be manually reset).
The cover on the grain discharge box has opened, indicat-
ing that grain is backing up into the discharge box.
The dryer has run low on grain, and the out of grain timer
has timed out shutting the dryer down. The unload auger
will then clean out the dryer, if the unload switch is on
during continuous flow operation. Check the out of grain
timer setting, and if necessary adjust. Also, before restart-
ing, inspect load equipment for possible damage or
adjustment.
An over temperature condition has occurred inside the
dryer plenum. (This control is a 300
°
F limit which automati-
cally resets when it cools).
The air switch contacts have opened, indicating the fan
may not be turning. The air switch may need adjustment.
1. Check that the fan circuit breaker and the fan switch are
on. Also, check for defective switch or bad wiring connections.
2. If lighted switch does not light, the air switch needs
adjustment, or the bulb may be burned out.
3. Verify closing of fan motor contactor. Check voltage on
load side of contactor. See appropriate power wiring
circuit diagram for terminal numbers. Inspect contactor
for defective points or a burned out coil.
4. Inspect connections, and check voltage applied to the
motor leads in the fan heater box to determine if the
motor is defective.
5. Check capacitors on single phase motors, and replace if
defective. If motor starts slowly, check for low voltage
during starting due to excessive voltage drop in power
supply wiring.
1. Check that the top auger circuit breaker and the load
auger switch are turned on.
2. If lighted switch does not light, the output power to the
contactor is missing. Check connections, or if the bulb is
burned out.
3. Check position of the upper auger paddle switch. It
must be down to start auger.
4. Inspect for secure mounting and wiring of mercury
switch in the terminal box on the top auger paddle
switch shaft. Include check for a defective mercury switch.
5. Verify closing of the top auger contactor. Check voltage
on load side of contactor. Inspect contactor for defective
points, or a burned out coil.
6. Inspect connections, and check voltage applied to motor
leads in motor junction box to determine if motor is defective.
7. Check that the mercury switch box is in the proper position.