Goodman Condensing Unit GSX130181C

Remove outer case, control panel cover, etc., from unit being tested

Voltage Measurement with Power On

Measure the voltage across terminals L1 and L2 of the contactor for the condensing unit or at the field connections for the air handler or heaters

Measure the voltage across the L1 and L2 lugs on the unitary (UC) control for ComfortNet Ready Condensing Units

Describe any issues found (e.g., open wiring, open fuse(s), no power) and repairs made

Disconnect all power sources before servicing or installing

Remove the leads from the holding coil

Test across the coil terminals using an ohmmeter

Checking Contactor Contacts - Single Phase

Disconnect the wire leads from the terminal (T) side of the contactor

Energize the contactor with power ON

Test across terminals L2 - T1 using a voltmeter

Disconnect all power before servicing

Remove the wiring from the control terminals

Test for continuity across the normally closed contacts using an ohmmeter

Is there continuity across the contacts?

Are the limits cool before testing?

Disconnect all power before servicing

Remove heater element assembly to expose fuse link

Test across the fuse link for continuity using an ohmmeter

Is there a reading on the ohmmeter?

Replace the fuse link if necessary

Remove the motor leads from its respective connection points and capacitor (if applicable)

Check the continuity between each of the motor leads

Touch one probe of the ohmmeter to the motor frame (ground) and the other probe in turn to each lead

If the windings do not test continuous or a reading is obtained from lead to ground, replace the motor

Disconnect the 5-pin connector from the motor

Check for line voltage at terminals #4 & #5 at the power connector

If no voltage is present, check the unit for incoming power and the control board