OPEN OR
SHORTED HEATER
Heater does not supply
heat to temperature zone
No heat to a specific
temperature zone
Loss of air
pressure switch
Low air pressure to
analyzer ovens
LOW OVEN
TEMPERATURE
Heater orifice
restricted
Defective
temperature probe
Oven temperature is below the
specified set point value
Check heater orifice
to ensure it is not
plugged or restricted
Runaway
Heater
HIGH OVEN
TEMPERATURE
Defective
temperature probe
Oven temperature is above the
specified set point value
No Trend
Output
TREND OUTPUT
NOT FUNCTIONING
CORRECTLY
Incorrect Trend
Output
There is not trend output at
input device, or the trend
output value is not correct.
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