5-7
TROUBLESHOOTING
SL 20-115 G2 MODULATING GAS BOILER
SL 10-85 G3, SL 14-115 G3, SL 20-160 G3, SL 30-199 G3 MODULATING GAS BOILERS
SYMPTOM
DIAGNOSIS
REMEDY
TEMPERATURE SENSOR
ERROR
Touch Screen Message:
Error - Max. In-Out Temp. Exceed.
-> Check water flow
Water
temperature signal not within
acceptable range. Potential flow
or sensor failure. Consult service
technician.
Current outlet
temperature exceeds
operating limit.
• Check water flow.
Defective or
disconnected
temperature sensor.
• Check wiring to temperature sensor and control
module.
• Check temperature sensor.
See Section 5.2.1.
MISCELLANEOUS
Touch Screen Message:
Blank – screen dark, but fan
running Indicative of power-surge
damage to appliance
• Check transformer; replace if damaged.
• Check circuit board for visible damage.
Summary of Contents for SL 20-160 G3
Page 75: ...6 3 DIAGRAMS SL 10 85 G3 SL 14 115 G3 SL 20 160 G3 SL 30 199 G3 MODULATING GAS BOILERS...
Page 77: ...6 5 DIAGRAMS SL 10 85 G3 SL 14 115 G3 SL 20 160 G3 SL 30 199 G3 MODULATING GAS BOILERS...
Page 79: ...6 7 DIAGRAMS SL 10 85 G3 SL 14 115 G3 SL 20 160 G3 SL 30 199 G3 MODULATING GAS BOILERS...
Page 85: ...SERVICE RECORD DATE LICENSED CONTRACTOR DESCRIPTION OF WORK DONE...
Page 86: ...NOTES...
Page 87: ...NOTES...