Error Code h01 58: Pressure Switch Fail. During the heating cycle after the combustion chamber pressure switch has opened indicating a pressure loss with the maximum times this is allowed exceeded.
The Networker will be signaled that a malfunction has occurred, and also display the heater/s error associated with it. If there is more than one operational error, then the Networker will scroll through each in order of priority, and display them all. The heater's identity is displayed to the right of screen, i.e. H 1 = Heater No.1, and the fault Error code number is displayed in the centre screen.
The following codes describe each error code number, reset availability and description of the unit’s operation status and service checks. The first used error number is 30, reserving the previous numbers for future development.
Experiencing issues with your system? Before calling for service, try a simple reboot first. Unplug the unit from the power plug or turn off the main power switch from your switchboard for at least 5 - 10 minutes. This can often resolve minor glitches.
If the problem persists and the error code doesnt go away, Don't hesitate to call us on 0411 792 669 - 24/7 Emergency On Call
Error Code h01 30: Fan Limp Mode. While the main fan is operating the main fan speed sensing signal has been detected as incorrect for more than the main fan speed sensing verify fault time.
Error Code h01 31: Unit will attempt to restart. If condition persists, unit may lockout. During ignition a flame roll out has occurred where the flame has earthed the AFRO bar to the burner assembly.
The heating cycle is forced into its “OFF” state with a restart initiated.
If condition persists, unit will lockout.
Error Code h01 32: Data Error. This fault indicates that parameter data in non-volatile memory could not be accessed and that all parameter data has been restored to default values.
Error Code h01 33: Mod Valve Open Circuit. The feedback current from the gas valve modulating coil is not detected for at least the gas valve modulating coil fault time even though a drive level is being applied to the coil.
Error Code h01 35: Supply Air Thermistor Fault. The supply-air thermistor has been detected as either open or short circuited for at least the supply-air thermistor fault time.
Error Code h01 36: Bad Supply Air Thermistor Location. The temperature registered by the supply-air did not reach the modulation set point temperature defined by installer setting number 6 within the main fan override time defined by factory parameter number 8.
Error Code h01 37: Speed Sensor Error. Unit operating in safe mode. If condition persists, unit may lockout. Incorrect main fan speed sensing signal.
Error Code h01 40: Return Air Overheat. The flue fan overheat switch has been detected as opened forcing the overheat cool down process to be initiated. So long as this switch remains open this fault condition is reported.
Error Code h01 41: Supply Air Overheat. The supply air overheat switch has been detected as opened forcing the overheat cool down process to be initiated. So long as this switch remains open this fault condition is reported.
Error Code h01 42: Supply Air Thermistor Overheat. The supply air thermistor temperature has exceeded the supply air overheat temperature forcing the overheat cool down process to be initiated. So long as this temperature is exceeded this fault condition is reported.
Error Code h01 43: Overheat Cooldown. The condition that has forced the overheat cool down process to be initiated has been removed with the remaining cool down process to be completed.
Error Code h01 44: Roll out. During an ignition a flame rollout signal is detected and the maximum rollout events allowed has not been exceeded.
Error Code h01 45: Low 24Vac. The 24Vac voltage level has dropped below the threshold level defined by factory parameter number 27 for at least the 24Vac under threshold level time.
Error Code h01 46: No Flame on Ignition. During an ignition attempt the flame signal is not detected within the flame detect time interval and the maximum attempts at flame detection during ignition have not been exceeded.
Error Code h01 47: Unstable Flame. During Flame Validation, the flame signal is lost within the flame validate time and the maximum attempts at flame validation have not been exceeded.
Error Code h01 48: Pressure Lost. During a heating cycle the combustion chamber pressure switch has opened indicating a pressure loss with the maximum times this is allowed not exceeded.
Error Code h01 49: Flame Lost. During a heating cycle flame has been lost.
Error Code h01 50: Ignition Lockout. The maximum number of ignition attempts has been exceeded within a heat cycle.
Error Code h01 51: Rollout No Gas. With no gas being expelled and no ignition source active a flame rollout signal has been detected indicating a problem with the flame rollout sensing circuitry.
Error Code h01 52: Flame No Gas: With no gas being expelled and no ignition source active a flame signal has been detected indicating a problem with the flame sensing circuitry.
Error Code h01 53: Overheat Lockout
Error Code h01 54: Rollout Lockout. During a heat cycle, a flame rollout signal is detected with the maximum rollout events allowed exceeded.
Error Code h01 55: Flame Validation Lockout. During Flame Validation the flame signal is lost within the flame validate time with the maximum attempts at flame validation during exceeded.
Error Code h01 56: Pressure Switch Stuck Open. With the flue fan on, the combustion chamber pressure switch is detected as opened after the flue fan time has expired indicating that the switch is stuck open.
Error Code h01 57: Pressure Switch Stuck Closed. With the flue fan off, the combustion chamber pressure switch is detected as closed indicating that the switch is stuck closed.
Error Code h01 58: Pressure Switch Fail. During the heating cycle after the combustion chamber pressure switch has opened indicating a pressure loss with the maximum times this is allowed exceeded.
Error Code h01 59: Cross Check Communications Error. This fault indicates a problem with the communications between the primary and secondary microcontroller. This is caused by a communications time out or unexplained mismatches in the data exchanged.
Error Code h01 60: Motor Open Circuit. No zero cross detect signal has been sensed for at least the zero cross detect failure time indicating that a motor open circuit fault exists.
Error Code h01 61; Primary Valve Stuck Off. On energising the primary valve control relay its contact is not detected as closed within the primary valve control relay contact closed verification time indicating that it is stuck off.
Error Code h01 62: Primary Valve Stuck On. With the primary valve control relay not being energised its contact is detected as closed indicating it is “stuck on”.
Error Code h01 63: Primary Valve Fail. During Heating, the primary valve control relay is not detected as closed.
Error Code h01 64: Mod Valve Overcurrent. The gas valve modulating coil current has been detected as exceeding the absolute maximum allowed (150mA) for at least the gas valve modulating coil fault time.
Error Code h01 65: Motor Lockout. While the fan limp fault is registered and a motor open circuit occurs or an overheat cool down is initiated the motor lockout fault is flagged.
Error Code h01 66: Secondary Valve Stuck Off. The secondary valve control relay contact was not detected as closed within the secondary valve control relay contact closed time indicating that it is stuck off.
Error Code h01 67: Secondary Valve Stuck On. With the secondary valve control relay not being energised its contact is detected as closed indicating it is stuck on.
Error Code h01 68: Secondary Valve Fail. During Heating, the secondary valve control relay is not detected as closed.
Error Code h01 69: Fuse Blown. The 24Vac voltage level has been lost completely possibly due to the 2A fuse being open circuited.
Error Code h01 70: Remote Microcontroller Shutdown Fail. This fault indicates that the remote microcontroller did not shutdown the heating cycle within the heating cycle shutdown time.
Error Code h01 71: Remote Microcontroller State Mismatch. This fault indicates that the local microcontroller detected a mismatch in the state being processed by the remote microcontroller.
Error Code h01 72: Ambiguous Fault. This fault is flagged as a result of a detected fault condition that could not be attributed to a specific cause. This is most likely the result of the remote microcontroller taking shutdown action that the local microcontroller detects as a fault condition.
Error Code h01 73: Remote Microcontroller Sequence Error. This fault indicates that the local microcontroller detected a mismatch in the next state to be be processed by the remote microcontroller.
Error Code h01 74: Remote Microcontroller Lockout. With no lockout in the local microcontroller, it has detected that the remote microcontroller is locked out.
Error Code h01 75: AC Input Scan Fault. One of the 24Vac inputs is stuck high.
Error Code h01 76: Lockout Storage Fault. This fault indicates that lockout fault data in non-volatile memory could not be accessed or that the ability of the primary microcontroller to retain lockout information has been compromised.
Error Code h01 77: Remote Microcontroller IO Mismatch. The local microcontroller has detected a mismatch with the remote microcontroller in the state of the inputs and outputs.
Error Code h01 79: A/D Converter Error. The check of the A/D measured reference voltage has failed.
Error Code h01 80: Flame Sense Fault. The measured flame voltage is outside the allowable range.
Error Code h01 81: Roll out Sense Fault. The measured roll out voltage is outside the allowable range.
Error Code h01 82: System Timing Fault. The cross check of the MCU timing against the 50Hz mains frequency has failed.
Error Code h01 83: System Execution Fault. There is an internal MCU execution fault.
Error Code h01 84: Control Board Lockout. System lockout initiated.
Error Code h01 85: Control Board Lockout. System lockout initiated.
Error Code h01 86: Control Board Lockout. System lockout initiated.
Error Code h01 87: Cross Check Communications Fault. No successful communications with the remote MCU for more than 10 seconds.
Error Code h01 88: Control Board Lockout. System lockout initiated.
Error Code h01 89: This code is used to test the ability of the MCU to store non-volatile lockouts. It should not be seen under normal operation.