SA Instruments 1030 - Page 181

Troubleshooting
Revision C, August 2013
C-3
Problem
Possible Cause
Corrective Action
See
Water Bed Heater
System has no flow
Power is not on.
Check power to the Heater
and Circulation Modules.
Green LEDs indicates power is
on.
19-6
Water Bed Heater
mixed water
temperature (Tout) is
not being updated.
Fiber optic connection
problem.
Check fiber optic cables for a
red light in the blue fiber at the
Circulator and Heater Modules.
19-7
Water Bed Heater bed
is not hot.
Control signal not
present
Power indication OK, but Heat
LED not flashing on the WBH
Heater Module. Check the set
point for the mixed water
temperature.
19-2
Water Bed Heater bed
is not hot.
Thermal fuse in heat
chamber is open
Power indication OK and Heat
LED flashing on the WBH
Heater Module but Tout is not
changing. Contact SA
Instruments Customer Service
F-2