Advantage Temperature Control Unit SK-1090-LEP

Disengage process operations and verify all system pressure is relieved and the unit's pressure gauges read '0'.

Disengage main power supply and verify the Power light on the display is 'off'.

Remove the 'To Process' temperature probe and insert a 1/2" plug in its place.

Record the temperature of the ice water bath using an accurate digital thermometer.

Call the factory for diagnostic assistance

Was the control instrument determined to be at fault?

Send a new or reconditioned instrument as a replacement

Return the defective instrument freight pre-paid for full credit

Was the defective instrument returned?

Pay for the instrument if not returned

Out of Warranty Service Incident

Call the factory for diagnostic assistance

Unplug the sensor probe connection

Shake out water from the service connection

Replug the sensor probe connection

Did the error display change to Solid Red?

Press the Start push button to clear the error display

Cease process operations as outlined in section 3.4 of the manual

Is all process pressure relieved and do the unit's pressure gauges read '0'?

Shut down unit operations according to section 3.4 in this manual

Ensure proper lock-out procedures are followed

Ensure system pressure is eliminated and the unit's pressure gauges read '0' pressure

Drain unit by removing the pump casing drain plug

Remove the capillary connection from the cooling cylinder to the pressure switch

Remove the brass elbow mounted on the pressure switch

Remove the electrical connections to the pressure switch

Disengage process operations according to section 3.4

Verify all system pressure is relieved and pressure gauges read '0'

Verify the Power light on the display is 'off'

Remove the thermoformed front panel and set aside

Open the hinged electrical cabinet panel cover

Remove the large molex connector