IBC CX 150 User Manual

7.2 Maintenance checklist for heating contractor 85
7.2.1 Touchscreen boiler controller 86
7.2.2 General combi boiler maintenance 87
7.3 Replacing the fan, gas valve, and burner 90
7.3.1 Replacing the fan 91
7.3.2 Replacing the gas valve 92
7.3.3 Replacing the burner 94
7.4 Maintenance of the On-Demand DHW block 96
7.4.1 Cleaning the bypass check valve 97
7.4.2 Replacing the bypass actuator 97
7.4.3 Removing the flow sensor 97
7.4.4 Cleaning the water strainer / flow restrictor 97
7.5 Cleaning the sight glass 98
7.6 Cleaning the condensate trap 98
7.7 Ensure door in place 101
8.0 Troubleshooting 103
8.1 Electronic components 103
8.1.1 Temperature sensors 103
8.1.2 Fan 104
8.1.3 Water pressure sensor 104
8.1.4 DHWflow sensor 105
8.1.5 Safety and Ignition Module (SIM+) 105
8.2 Troubleshooting error messages 107
8.2.1 Maximum ignition trials error 108
8.2.2 Hi Limit cut-off temperature error 108
8.2.3 Low Water Cut-off error 108
8.2.4 Aux. Interlock 1 or 2 109
8.3 Miscellaneous touchscreen controller errors 109
8.3.1 Ignition issues 110
8.3.2 Temperature issues 111
8.3.3 Miscellaneous issues 112
8.3.4 Cycling issues 113
Appendices 114
Wiring diagrams 114
8.4 Exploded views of the CX150, CX199 appliance 117
5

IBC CX 150 Specifications

General

Brand	IBC
Model	CX 150
Category	Boiler
Language	English