Garland EFW800, Руководство по обслуживанию

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Part # 4521056 Rev 2(02/21/12) Page 8
TROUBLESHOOTING
DESCRIPTION OF PROBLEM
POSSIBLE
CAUSE
WHAT TO DO
Warning indicator lamp is
fl ashing. Water in tank is low. Fill with cold water.
Warning indicator lamp
fl ashes after fi lling with water. The water was not cold
enough to reset the low
water condition. The lamp will automatically turn o ff in 10 minutes.
Replacing the water in the tank with cold water will reset
the low water condition immediately.
Warning indicator lamp is
on continuously and water
temperature is high. Sensor could be shorted or
the temperature abnormally
high. Is water bath above 180°F (82°C) ? Yes, sensor may be
shorted or control relay shorted.
Is water bath above 150°F (65°C) but below 180°F (82°C)
?
Sensor or circuit out of calibration.
Check sensor resistance, check control output relay for
shorts. Replace sensor or control if necessary.
Warning indicator lamp is on
continuously, temperature is
normal. Sensor could be open or
shorted but the control
is functioning in a timed
heating cycle mode. Check sensor resistance and replace if necessary.
Water temperature and
fondant temperature is high
by 2 to 4°F (1 to 2.5°C). Calibration adjustment is
required. Verify power supply is adjusted to 12.0V DC. Moving jumper
may not be necessary.
Moving the calibration jumper from input terminal I5 to I4
reduces the temperature by 4°F (2.5°C) or to I3 reduces the
temperature by 2°F (1°C).
Water temperature and
fondant temperature is low
by 2 to 4°F (1 to 2.5°C). Calibration adjustment is
required. Verify power supply is adjusted to 12.0V DC. Moving jumper
may not be necessary.
Moving the calibration jumper from input terminal I5 to I1
increases the temperature by 2°F (1°C) or to I2 increases the
temperature by 4°F (2.5°C).
Heaters are not heating. No
indicators come on. Red light on controller. Replace controller.
No lights on power supply. Replace power supply.
Green indicator does not
illuminate but unit works
properly. Indicator lamp is defective. Replace lamp.
Control relay is defective. Replace controller.
Amber warning indicator
does not illuminate for 10
seconds at power up. Indicator lamp is defective. Replace lamp.
Control relay is defective. Replace controller.