Model Selectech Communication Diagnostics - Bard WA Series User Manual

TROUBLESHOOTING GE X13-SERIES ECM2.3
Model X13 Communication Diagnostics
2. If the motor has proper high voltage and ground at
The X13 motor is communicated through 24 VAC low voltage
the L/L1, G, N/L2 connections, then continue with
(Thermostat Control Circuit Wiring).
the Model SelecTech Communication Diagnostics.
1. Start with unit wiring diagram to confirm proper

Model SelecTech Communication Diagnostics

connections and voltage (see Figure 11).
The SelecTech motor is communicated through 24 VAC
low voltage (thermostat control circuit wiring).
1. Start with unit wiring diagram to confirm proper
connections and voltage (see Figure 24).
2. Initiate a demand from the thermostat and
check the voltage between the common and the
appropriate motor terminal (1-5). (G input is
typically on terminal #1, but always refer to wiring
diagram.)
24VAC Common
24VAC "R" Signal through
thermostat output.
Speed Tap 1: Vent Speed
Speed Tap 2: Balanced Climate Speed
Speed Tap 3: Default Speed
Speed Tap 4: Medium Speed
Speed Tap 5: High Speed
24VAC Common
24VAC "R" Signal through
thermostat output.
2. Initiate a demand from the thermostat and check the
A. If the low voltage communication is not
voltage between the common and the appropriate motor
present, check the demand from the
terminal (1-5). ("G" input is typically on terminal #1, but
thermostat. Also check the output terminal
refer to wiring diagram!)
and wire(s) from the terminal strip or control
a. If the low voltage communication is not present, check
relay(s) to the motor.
the demand from the thermostat. Also check the
output terminal and wire(s) from the terminal strip or
B. If the motor has proper high voltage (verified
control relay(s) to the motor.
in Step 1 of If the Motor Is Not Running),
b. If the motor has proper high voltage as identified
proper low voltage to a programmed terminal
above (Motor not Running #1), and proper low voltage
and is not operating, the motor is failed and
to a programmed terminal, and is not operating, the
will require replacement.
motor is failed, and will require replacement.
FIGURE 24
FIGURE 11
Motor Connections
™ MOTORS
CONT'D.
Manual 2100-467H
Page 23 of 23
Manual 2100-720C
Page 29 of 42