York Sun Premier GZA1M Series Start-Up & Operation page 120

5587001-YSG-A-520 | Start-Up & Operation Guide
Table 33: Faults List (Continued)
Fault Type
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
120
Description
Outside airflow sensor failure
Discharge air pressure sensor failure
Return air pressure sensor failure
Sensor calibration fault
C1 liquid pressure sensor failure
C2 liquid pressure sensor failure
C1 liquid temperature sensor failure
C2 liquid temperature sensor failure
C1 suction pressure sensor failure
C2 suction pressure sensor failure
C1 suction temperature sensor failure
C2 suction temperature sensor failure
Zone air humidity sensor failure
ZT sensor failure
OAQ sensor failure
Return air quality sensor failure
Discharge air humidity sensor failure
Exhaust heat recovery temp sensor fail
Slab humidity sensor failure
Slab temperature sensor failure
DAT cannot reach cooling setpoint
DAT cannot reach heating setpoint
Caused By
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor(s) has failed calibration test. Cycle
power to unit. If error returns, contact
technical support
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Sensor input out of expected range. Open
or shorted circuit
Expected DAT was not achieved due to
high EAT, lack of cooling capacity
Expected DAT was not achieved due to
low EAT, lack of heating capacity
YORK