Sanyo 26KHHS72R Service Manual - Page 160
Service procedures, 4. Table of Thermistor Characteristics
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4. Service procedures Check Pin Short-circuit the cooling check pin (or heating check pin) on the outdoor unit control PCB to perform the control described below. 1. Thermistor checks The checks listed below are performed for 1 second each, in order from the top down. The results are displayed by LED 1 and 2. Thermistor Discharge temp. (TD) Outdoor air temp. (TO) Heat exchanger temp. (C1) Heat exchanger temp. (C2) Intake temp. (TS) Check results Normal Abnormal LED 1 lit LED 2 lit LED 1 lit LED 1 and 2 OFF LED 1 lit 2. 4-way valve turns ON for 1 second. 3. Forced cooling (or heating) operation 4-4. Table of Thermistor Characteristics 1 (1) Outdoor Air Temp. (TO), Intake Temp. (TS), Heat (2) Discharge Temp. (TD) Sensors Exchanger Temp. (C1) Sensor, Heat Exchanger Temp. (C2) Sensor 2 Resistance (kΩ) Resistance (kΩ) 3 Temperature (˚F) 4 Temperature (°F) 5 6 IV-14 SM831148
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