Fann iX77 Manual Del Usuario página 127

7.3 Temperature
Table 7-2
Symptom
Does not heat
Post test Cool Down fails
Does not chill to set
temperature
Cooling water leaks
around test cell
101625591
Temperature
Possible Cause
System automatically sensed
problem in heating time
Heater failed
Thermocouple failed
Bad solid state relay
Cell temperature below 100°F
No water supply
Faulty cooling valve or cooling
valve solenoid valve
Blocked drain hose
Low-pressure output from external
chiller
Cell to heater well O-ring damaged
Heating well drain holes blocked
Drain hose too small or too high
iX77™ Rheometer User Manual
Revision F
Solution
Reset heat fault
Call for FANN Service
Call for FANN Service
Call for FANN Service
None, cool down disabled below
100°F
Verify water supply
Call for FANN service
Verify drain hose is open
Verify chiller output pressure and
repair as indicated
Inspect and replace as indicated
Clean
Replace with larger hose or adjust to
lower than system
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