Troubleshooting - Toro TMC-424 Manual Del Usario

Troubleshooting

Fuse – Electronic Circuit Breaker
The TMC-424 features built-in circuit protection to help prevent damage to the
controller caused by excessive current draw on the station and/or pump/master
valve circuits.
If the controller detects an overload condition, it will bypass the affected station(s).
The remaining stations will operate as programmed for automatic operation. After
watering ends, FUSE will be displayed with the affected station number(s).
If the condition occurs on the Pump Start/Master Valve circuit, all stations using
the master valve will show FUSE.
To clear the warning display, press any button. The controller will continue to
operate as scheduled and will attempt to run all stations as programmed.
IMPORTANT: Clearing the display does not correct the problem. The
controller will retry the affected station(s) at each programmed watering
cycle and bypass the affected station(s) until the problem is corrected.
Before continuing to operate the controller, identify and correct the source of
the problem. In most cases, the FUSE alert condition is caused by a faulty valve
solenoid, pump start relay and/or shorted wire splice.
Flow Alarm
When using the TMC-424 with flow monitoring, exceeding the Under-flow,
Over-flow, Nominal (no) flow and Critical flow boundaries will signal an alert
warning. After watering ends, the display will show FLOW (FLOW 0 for no-flow
conditions). with the affected station number(s). To clear the warning display,
press any button. The controller will continue to operate as scheduled and will
attempt to run as programmed.
See IMPORTANT information above.
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