Hurricane SCH25, Руководство по обслуживанию и устранению неисправностей

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• If the heater fails to resume operations, check the thermostat and
their connections.
3.8.
0
- Voltage Low or High
The battery or power supply voltage is below 11Vdc or above 15Vdc
• The burner will shut down.
• The diagnostic code,
0
will be displayed.
• The buzzer will sound for 10 seconds.
• The control board will purge the system with the combustion fan and
circulating pump for two minutes while it is checking if the voltage
fault is still present.
If the voltage fault has cleared, the control board will reset the alarm
and restart the burner. If the condition has not cleared by the end of
the purge period, the diagnostic code 0 will remain displayed. The
control board will continue to check the voltage every half hour until the
voltage fault has cleared and then restart the burner. To manually reset
the fault, switch the service switch or the remote panel switch OFF then
ON again.
3.9.
1
- Overheat
The high temperature limit has been reached.
• The burner will shut down.
• The diagnostic code,
1
will be displayed.
• The buzzer will sound for 10 seconds.
• The control board will purge the system with the combustion fan and
circulating pump for two minutes while it is checking if the overheat
condition exists. If the condition exists, the diagnostic code
1
will
continue to be displayed.
• In order to restart the burner, first check the circulating pump, the
level of the coolant, and the movement of the coolant while the
circulating pump is running. Reset the high limit aquastat (inside
heater) and the fault (switch service or remote switch OFF then ON
again). If the fault does not reset, check for a faulty aquastat and
proper ground. If equipped with AC elements, reset the AC hi-limit
aquastat also.
• If a number
I
diagnostic code lights up and the heater is not in an
overheat condition, check the ground from the heater ground wire to