Troubleshooting

Front

An open switch will read 0 volts across it?

Back

False

Front

If you switch the fan to on at the thermostat and it starts you know?

Back

Line voltage is present, Low voltage is present, The fan motor is operational.

Front

If you read 240 volts on the line side of the contactor, 240 volts on the load side of the contactor and the compressor is not running?

Back

The compressor or wiring is faulty.

Front

If the indoor fan is not operating and applying an insulated jumper from R to G causes the fan to start.

Back

The thermostat is faulty.

Front

To make the heat start with the thermostat removed from the base, place the insulated jumper?

Back

From R to W.

Front

How to make the fan run with the thermostat removed from the base? Apply a jumper:

Back

From R to G.

Front

To make the condensing unit start apply a jumper from ___ to ___ at the thermostat base.

Back

R to Y

Front

If you remove the thermostat from the base and measure 24 volts from R to C & R to W but 0 volts from R to G?

Back

The fan relay is open.

Front

If you measure 24 volts at the contactor coil and 240 volts across the contacts?

Back

The contactor is faulty.

Front

The contacts on a potential relay should read 0 ohms when de energized.

Back

True