102
420012001500 - 03182024 - Rev. 04
Part 13 - Troubleshooting
A. Boiler Protection Devices
The boiler is protected from malfunctioning by means of internal
checks performed by the electronic microprocessor PCB, which stops
the boiler from operating if necessary. In the event of the boiler being
shut off in this manner, a code appears on the display which refers to
the type of shut-off and the reason behind it.
There are two types of shut-off:
1. Blocking Error
A blocking error means the boiler will restart automatically as soon as
the problem which caused the error clears or is removed; the error is
indicated on the display.
For example, if the boiler indicates a 110 error code, the error will clear
automatically when the CH temperature decreases. The boiler will
restart and operate normally.
NOTE: Contact a qualified service technician if the error continues to
occur.
In the event of Error 108 - Shut-off due to insufficient water
pressure inside the heating circuit
Pressure can be increased by filling the heating circuit. See filling and
purging procedures, this manual.
If Error 108 occurs frequently and system needs repeated refilling, turn
the boiler off. Turn the external electric power to the OFF position.
Shut off the main gas valve. Contact a qualified service technician to
check for any leaks of water.
Figure 110 - Blocking Error Example
Figure 111 - Shut-Off Error for Low Water
Pressure
2. Lockout Error
A lockout error means the boiler does not return to operation after the
error condition goes away.
The RESET button must be pressed on the control panel to restore
boiler operation.
If the error condition occurs often contact a qualified service
technician.
3. Malfunction Warning
This warning is shown by the display in the following format:
The figure shows the Warning 1 P4 = LOW WATER PRESSURE.
The first part of the error code (e.g. 1 01) indicates the affected
operational assembly.
1 - Primary Circuit
2 - Domestic Hot Water Circuit
3 - Internal Electronic Part
4 - External Electronic Part
5 - Ignition and Detection
6 - Air inlet - flue gas outlet
7 - Multi-zone Heating
Important
Contact a qualified service technician for assistance if a Lockout
Error occurs frequently. For safety reasons, the boiler will permit
a maximum of five (5) resets in 15 minutes (five [5] presses of the
RESET button). A sixth (6th) attempt within this 15 minute period
will lock out the boiler. The boiler will only operate again after
the electrical supply has been disconnected and reconnected.
Repeated Lockout Error conditions could indicate a serious
error with the boiler or installation. Failure to contact a qualified
service technician to troubleshoot the error could result in
substantial property damage, serious personal injury, or death.
Figure 112 - Lockout Error Example
Figure 113 - Warning for Low water pressure
WARNING
10/20/2023
Single Boiler
Status
Outlet:
Lockout
501
95 °F
RESET
Press
66°F
19:57
10/20/2023
Single Boiler
Status
Demand
Outlet:
Run
Central Heating
Target 180°
95 °F 78%
Power:
66°F
21:00
Low Water Pressure
Ignition Failed (x3)
10/20/2023
Single Boiler
Status
Outlet:
Blocking error
110
----
0%
Power:
66°F
19:57
Supply Sensor Fault
F.Signal 132
10/20/2023
Single Boiler
Status
Demand
Outlet:
Run
Frost Protection
Target 50°
45 °F 99%
Power:
66°F
21:08
F.Signal 255
10/20/2023
Single Boiler
Status
Demand
Outlet:
Run
Floor drying cycle
75 °F 99%
Power:
66°F
21:10
F.Signal 255
10/20/2023
Single Boiler
Status
Demand
Outlet:
Standby
Emergency mode
75 °F 0%
Power:
66°F
21:11
F.Signal 255
10/20/2023
Single Boiler
Status
Outlet:
Standby
95 °F 0%
Power:
66°F
21:00
Low Water Pressure
10/20/2023
Single Boiler
Status
Outlet:
Standby
75 °F 0%
Power:
66°F
21:03
1P4
108
Pump
Antifreeze
Run
Antifreeze
TANK
Antifreeze
Floor
drying
cycle
Emergency
Mode
Demand
Frost Protection
F.Signal 255
10/20/2023
Single Boiler
Status
Outlet:
Run
75 °F 99%
Power:
66°F
21:03
Demand
Frost Protection
F.Signal 255
10/20/2023
Single Boiler
Status
Outlet:
Lockout
501
95 °F
RESET
Press
66°F
19:57
10/20/2023
Single Boiler
Status
Demand
Outlet:
Run
Central Heating
Target 180°
95 °F 78%
Power:
66°F
21:00
Low Water Pressure
Ignition Failed (x3)
10/20/2023
Single Boiler
Status
Outlet:
Blocking error
110
----
0%
Power:
66°F
19:57
Supply Sensor Fault
F.Signal 132
10/20/2023
Single Boiler
Status
Demand
Outlet:
Run
Frost Protection
Target 50°
45 °F 99%
Power:
66°F
21:08
F.Signal 255
10/20/2023
Single Boiler
Status
Demand
Outlet:
Run
Floor drying cycle
75 °F 99%
Power:
66°F
21:10
F.Signal 255
10/20/2023
Single Boiler
Status
Demand
Outlet:
Standby
Emergency mode
75 °F 0%
Power:
66°F
21:11
F.Signal 255
10/20/2023
Single Boiler
Status
Outlet:
Standby
95 °F 0%
Power:
66°F
21:00
Low Water Pressure
10/20/2023
Single Boiler
Status
Outlet:
Standby
75 °F 0%
Power:
66°F
21:03
1P4
108
Pump
Antifreeze
Run
Antifreeze
TANK
Antifreeze
Floor
drying
cycle
Emergency
Mode
Demand
Frost Protection
F.Signal 255
10/20/2023
Single Boiler
Status
Outlet:
Run
75 °F 99%
Power:
66°F
21:03
Demand
Frost Protection
F.Signal 255
10/20/2023
Single Boiler
Status
Outlet:
Lockout
501
95 °F
RESET
Press
66°F
19:57
10/20/2023
Single Boiler
Status
Demand
Outlet:
Run
Central Heating
Target 180°
95 °F 78%
Power:
66°F
21:00
Low Water Pressure
Ignition Failed (x3)
10/20/2023
Single Boiler
Status
Outlet:
Blocking error
110
----
0%
Power:
66°F
19:57
Supply Sensor Fault
F.Signal 132
10/20/2023
Single Boiler
Status
Demand
Outlet:
Run
Frost Protection
Target 50°
45 °F 99%
Power:
66°F
21:08
F.Signal 255
10/20/2023
Single Boiler
Status
Demand
Outlet:
Run
Floor drying cycle
75 °F 99%
Power:
66°F
21:10
F.Signal 255
10/20/2023
Single Boiler
Status
Demand
Outlet:
Standby
Emergency mode
75 °F 0%
Power:
66°F
21:11
F.Signal 255
10/20/2023
Single Boiler
Status
Outlet:
Standby
95 °F 0%
Power:
66°F
21:00
Low Water Pressure
10/20/2023
Single Boiler
Status
Outlet:
Standby
75 °F 0%
Power:
66°F
21:03
1P4
108
Pump
Antifreeze
Run
Antifreeze
TANK
Antifreeze
Floor
drying
cycle
Emergency
Mode
Demand
Frost Protection
F.Signal 255
10/20/2023
Single Boiler
Status
Outlet:
Run
75 °F 99%
Power:
66°F
21:03
Demand
Frost Protection
F.Signal 255
10/20/2023
Single Boiler
Status
Outlet:
Lockout
501
95 °F
RESET
Press
66°F
19:57
10/20/2023
Single Boiler
Status
Demand
Outlet:
Run
Central Heating
Target 180°
95 °F 78%
Power:
66°F
21:00
Low Water Pressure
Ignition Failed (x3)
10/20/2023
Single Boiler
Status
Outlet:
Blocking error
110
----
0%
Power:
66°F
19:57
Supply Sensor Fault
F.Signal 132
10/20/2023
Single Boiler
Status
Demand
Outlet:
Run
Frost Protection
Target 50°
45 °F 99%
Power:
66°F
21:08
F.Signal 255
10/20/2023
Single Boiler
Status
Demand
Outlet:
Run
Floor drying cycle
75 °F 99%
Power:
66°F
21:10
F.Signal 255
10/20/2023
Single Boiler
Status
Demand
Outlet:
Standby
Emergency mode
75 °F 0%
Power:
66°F
21:11
F.Signal 255
10/20/2023
Single Boiler
Status
Outlet:
Standby
95 °F 0%
Power:
66°F
21:00
Low Water Pressure
10/20/2023
Single Boiler
Status
Outlet:
Standby
75 °F 0%
Power:
66°F
21:03
1P4
108
Pump
Antifreeze
Run
Antifreeze
TANK
Antifreeze
Floor
drying
cycle
Emergency
Mode
Demand
Frost Protection
F.Signal 255
10/20/2023
Single Boiler
Status
Outlet:
Run
75 °F 99%
Power:
66°F
21:03
Demand
Frost Protection
F.Signal 255
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