Jackson Tempstar GP technical manual Check ignition wire. Check that lights above

Page 20

TROUBLESHOOTING SECTION

WARNING: Inspection, testing and repair of electrical equipment should only be performed by a qualified service techni- cian. Many of the tests require that the unit have power to it and live electrical components be exposed.

USE EXTREME CAUTION WHEN TESTING THE MACHINE.

 

 

 

 

 

 

Symptom

Possible Cause

Action

 

 

 

 

 

 

 

The unit ignites, but will to rise above

T-mid thermistor inoperative.

Check T-mid thermistor readings at control

 

 

ignition burn.

 

board set points.

 

 

 

 

 

 

 

 

T-set too low.

Check T-set is at 4.25 VDC.

 

 

 

 

 

 

 

 

Obstruction in gas burners or gas nozzles.

Remove burner manifold and check for

 

 

 

 

obstructions.

 

 

 

 

 

 

 

 

Control board damaged.

Replace control board.

 

 

 

 

 

 

 

Exhaust contains dark smoke.

Incorrect gas nozzles for type of gas being

Remove burner manifold and check correct

 

 

 

used.

nozzle orifice size.

 

 

 

 

 

 

 

 

Gas leak may be present.

Check for localized large yellow flame, or a

 

 

 

 

flame located above the burner.

 

 

 

 

 

 

 

 

Obstruction in heat exchanger vent or air

Check for obstructions.

 

 

 

intake.

 

 

 

 

 

 

 

 

Ignition attempt with flame already burning.

Flame proofing not occurring.

Check ignition wire. Check that lights above

 

 

 

 

connection point to DSI are dimly lit

 

 

 

 

(proofing signal is present).

 

 

 

 

 

 

 

Heat exchanger and recirculating pump de-

Failure or incorrect setting of thermostat.

Back thermostat CCW one full turn and

 

 

energize at end of rinse cycle with wash

 

restart unit. When cycle completes, set

 

 

tank temperature below 170 F.

 

thermostat to 170 F by turning CW.

 

 

 

 

 

 

18

Image 20
Contents Technical Manual Table of Contents Specifications of the Tempstar GP Installation Instructions GAS Connection Operation Instructions Overview of Operation Overview of Operation Thermostat Adjustment Procedure AUTO-CALIBRATION Procedure Auto CalibrationTesting and Setting the Set Point Temperature Electronics Control Board ECBTesting the Thermistors To test the temperature at the T-in ThermistorControl Board LED Light Indications Green LED is offTroubleshooting Section Symptom Possible Cause ActionTroubleshooting Section Leaks do not USE Flame Low rinse temperature/low wash Low inlet water temperature Polarity will Damage the Circuit Boards DSICombination cutoff valve and the modulating Check ignition wire. Check that lights above Dimensions Table Dimensions Main Assembly Shown Not ShownControl BOX Assembly Front View QTY Description MFG noControl BOX Assembly TOP View Control BOX ASSEMBLY-TOP View Hood Assembly Cantilever ARM Assembly TUB Assembly Back of TUB, & Drain Assembly Lower Assembly Right Side Incoming Plumbing Assembly Incoming Plumbing Parts Lists GAS Pack Assembly Upper WASH, & Rinse ARM Assembly Lower WASH, & Rinse ARM Assembly Steam Coil Assembly Steam Coil Assembly Parts Lists Rinse Tank Assembly Electronic Control Drawer Components RED Green LEDElectrical Diagram 208/240 Volt 60 Hertz 1 Phase