andrews 24/39 Installation And Service Manual page 5

10 Appendix
10.1 Hiflo auto ignition "G" series addendum
10.1.1 Features of honeywell integrated control system
10.2 Specifications
10.3 Sequence of operations
10.4 Troubleshooting
10.4.1 Using control display for servicing the water heater
10.4.2 Service mode
10.4.3 To change the maximum setpoint limit (max setpoint) for the
temperature setpoint
10.4.4 Display of water temperature
10.4.5 To display flame sense current of the pilot flame sensor
10.4.6 To display and change temperature setpoint
10.4.7 To display and change temperature format (°F/°C)
10.4.8 Error codes and error history display
10.4.9 Error code history
10.4.10 To view previous error codes
10.4.11 Error code definitions
10.4.12 Resetting lockout conditions
10.4.13 Resetting error codes in hard lockout conditions
10.5 Service procedure D24 - I
10.5.1 Thermostat circuit testing
10.5.2 Sensor resistance testing
10.5.3 Sensor resistance at various temperatures
10.6 Service procedure D24 - II
10.6.1 Pilot operation testing
10.6.2 Pilot inspection
10.6.3 Pilot operation testing
10.7 Service procedure D24 - III
10.7.1 Main burner operation testing
10.7.2 Checking manifold pressure
10.8 Service procedure D24 - IV
10.8.1 Main burner & pilot removal and inspection
10.8.2 Control board replacement
10.9 Service procedure D24 - V
10.9.1 Flue baffle removal and inspection
10.10 Service procedure D24 - VI
10.10.1 Anode removal and inspection
10.11 General assembly
10.12 Burner assembly
10.13 Control box assembly
10.14 General assembly parts list
10.15 Burner assembly parts list
10.16 Control box assembly parts list
10.17 Dismantling, disposal and recycling
Issue 2 14/07/16
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