A.O. Smith 30 - Manual (Page 94)

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Instruction manual SGS 94
13.4 Displayed warnings
Displayed warnings
Symptom Cause Solution Remark
Q/T sensor not
correctly connected
Lead(s) loosened or
incorrectly connected
Appliance runs, but displays a warning 1. Properly connect Q/T sensor and the warning will disappear
2. If correctly wired but the warning remains, replace sensor
Note: To have the sensor connected or replaced, contact your
installation engineer
Collector temperature
excessive
Temperature S1 is
higher than T
collector
max
The pump in the solar circuit switches off, until S1 < 70°C 1. You can let the message disappear automatically by allowing
the heating fluid to cool down
2. You can also manually eliminate the message by pressing the
RESET and ENTER button simultaneously
Maximum burning
hours: Service required
The actual burning
hours have exceeded
the preset burning
hours
Appliance runs, but displays a warning For maintenance to your appliance, contact your installation
engineer