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