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Troubleshooting Indoor Components
Indoor Fan Motor Troubleshooting
To check the condition of the indoor fan motor voltage measurements
and resistance measurements can be compared to the following charts.
Care must be taken when checking voltage measurements, all wires and
terminals must be isolated for safety. Resistance measurements must be
taken with power off and “PG” connector removed from the circuit board.
PG Wire Connector
Low
Medium
High
Turbo
Brown - White
130 vac
147 vac
161 vac
225 vac
Brown - Red
148 vac
184 vac
210 vac
340 vac
White - Red
123 vac
150 vac
180 vac
205 vac
The following chart indicates approximate voltage measurements, readings may vary slightly depending on
models and should be used as a reference only. Voltages should be taken with unit running.
PG Wire Connector
Resistance (ohms)
Brown - White
97 Ω
Brown - Red
174 Ω
White - Red
78 Ω
The following chart indicates approximate resistance measurements, readings may vary slightly depending on
models and should be used as a reference only. Turn power off and remove connector from circuit board before
reading measurements.
