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Samlex America STS-30 User Manual

Page 13

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12 | SAMLEX AMERICA INC.

SAMLEX AMERICA INC. | 13

SecTIOn 4 |

Troubleshooting

Failed time delay circuit

It is possible for a voltage spike, etc. to cause the Time Delay Module to fail: if this
happens, the switch will no longer transfer. If the AC input to the control board PCb1
(fig 2) is available and the LeD (fig 2) does not light after 20 to 25 seconds, the time
delay function in the module has failed, and the module will be required to be replaced.
To verify this, try setting the time delay switch on the PCb1 to disabled position (oN);
the switch should transfer with no delay. Note that this position will allow emergency
operation until the module can be replaced; however there will not be a 20 - 25 second
delay for generator start-up. All repairs should begin by unplugging and replacing PCb1
for relay control first. However, if the LeD 1 is oN and the switch is not working, then
PCb1 for relay control is functioning properly and the switch has other problems, such as
a failed relay and the entire switch will be required to be replaced.