11
R
EV
.
12-21
S
ECTION
6
S
YSTEM
A
LARMS
/T
ROUBLESHOOTING
________________________________
The chiller has multiple system alarms that when triggered will
show on the display. When an alarm is displayed the system will
not attempt to heat or cool the coolant.
Alarms:
RTD Open: The temperature sensor has failed or its connector has
come loose.
Turn off the chiller and disconnect the AC power cord.
Contact Sonics for a replacement RTD, or for a RMA number to
return the unit for RTD replacement.
Fan Fail: Fan is supplying insufficient air to cool the thermoelectric
heat exchanger.
Either the fan has failed or the airflow into or out
of the system is blocked. Check that the side air inlet and outlet
gratings are not blocked. The chiller requires at least 3 inches of
clearance around these gratings. If airflow is not blocked, contact
Sonics for a replacement fan, or for a RMA number to return the
unit for fan replacement.
Pump Fail: The liquid heat exchanger plate temperature is either too
hot or too cold, indicating pump failure, a blockage in the external
plumbing lines or operation outside the normal 5°C to 50°C coolant
temperature (without –LT or –HT options).
Turn off the chiller and
disconnect the AC power cord. Verify that no kinks or blockages
exist in plumbing line, both outside and inside the chiller. If no
coolant flow blockages exist, contact Sonics for a replacement
pump, or for a RMA number to return the unit for pump
replacement.
Tank Level Low(#830-00906 Only): Liquid reservoir level is too
low.
Unless filling for the first time, check all outside plumbing
lines for leaks. Once all leaks are sealed, remove the cap and add
more coolant until the alarm disappears.
Electrical Shock Hazard:
Always unplug the unit
before removing the cover.
WARNING
Do not attempt to service or
repair the unit beyond the
troubleshooting checks
described in this section
without first contacting
Solid State Cooling Systems
WARNING