MAINTENANCE
Troubleshooting Sensors
1.
See Figure 17 for location of sensor connections to the
control board.
2.
If temperature response of indoor or outdoor sensor
is not correct, disconnect sensor from control board
and verify sensor resistance. Replace sensor if its
resistance is not close to values in the table below.
Table 2 - Sensor Resistance Values
@ Ambient
Temperature
Resistance
77°F (25°C)
10.0 K
50°F (10°C)
19.9 K
35°F (1.6°C)
30.0 K
30°F (-1.1°C)
34.4 K
Figure 17 - Control Board Sensor Connections
Indoor Sensor Connections
Outdoor Sensor Connections
11.
Air leaks may make the conditioned area
uncomfortably drafty or produce noises. Visually
inspect foam gasket between wall and unit, taking
note of separation between air inlet for condenser
and condenser coil discharge. These two areas must
be sealed off from each other. If you experience poor
cooling operation or erratic operation, check for air
recirculation at condenser coil.
12.
Replace access panels and reconnect electrical power.
25
Made in USA
P/N 240010598, Rev. A [05/12/2014
]