© Fulton Group N.A., Inc. 2022
MAINTENANCE EDR-SOLA-IOM-2022-0216 SECTION 4
4-12
PROBLEM CAUSE CHECK
No Power /
Control does not illuminate
Power / Wiring/
Connections
1. Verify Incoming 120VAC power.
2. Verify Control Fuse in Boiler Panel.
3. Verify 120VAC Input to 24VAC Transformer and corresponding terminal blocks.
4. Verify 24AC Output from transformer ( 20- 28VAC) and corresponding terminal blocks.
5. Verify 24VAC at SOLA base (pins J8-1, J8-2) and corresponding terminal blocks.
6. Verify 24VAC at SOLA display (pins 7, 8) and corresponding terminal blocks.
Boiler in Standby /
No Call for Heat
Power / Wiring/
Connections
1. Verify LCI circuit input at SOLA base including switch position, Auxiliary Interlocks, and BMS
Enable/Disable contact closure (pin J6-3).
2. Verify ILK circuit input at SOLA base including Limit String and Auxiliary Safeties (pin J5-1).
3. Verify STAT circuit input at SOLA base including switch position, and BMS Enable/Disable
contact closure (pin J8-3).
Controller / Settings 1. Clear and Satisfy any Lockouts or Holds
If boiler is in Central Heat (Standalone) mode:
1. Verify Central Heat mode is enabled (Conguration Menu >> CH - Central Heat Conguration
>> CH Enable under Central Heat Heading)
2. Verify Setpoint and Hysteresis settings (Conguration Menu >> CH - Central Heat
Conguration >> Setpoint Heading)
3. Verify that the Warm Weather Shutdown is not active (Conguration Menu >> Warm
Weather Shutdown Conguration)
If boiler is in Lead / Lag (Multiple Boiler Sequencing) mode:
1. Verify Staging Method at Master boiler (Conguration Menu >> Lead Lag Master
Conguration >> Advanced Settings >> Method 1 under Add Stage Heading)
2. Allow time for Detection and Interstage Delay Times to expire at Master boiler (Conguration
Menu >> Lead Lag Master Conguration >> Advanced Settings >> Add Stage Heading)
3. Verify Setpoint and Hysteresis settings (Conguration Menu >> Lead Lag Master
Conguration >> Advanced Settings >> Add Stage Heading)
4. Verify that the Warm Weather Shutdown is not active (Conguration Menu >> Lead Lag
Master Conguration >> Advanced Settings >> Warm Weather Shutdown Heading)
LCI OFF - Lockout or Hold
63
Power / Wiring /
Connections
Verify LCI circuit input at SOLA base including switch position, Auxiliary Interlocks, and BMS
Enable/Disable contact closure (pin J6-3)
ILK OFF - Lockout or Hold
67
Power / Wiring /
Connections
Verify ILK circuit input at SOLA base including Limit String and Auxiliary Safeties (pin J5-1)
Controller / Settings Check the Alarm History to determine what triggered the fault Details >> History >> Lockouts
>> Select the desired lockout to see the ‘First out’
Troubleshooting
Use the following table as a guide to troubleshooting your boiler.