Troubleshooting Guidelines

WARNING! 

• To prevent electrostatic discharge (ESD), connect an ESD wrist strap to the ESD connection point inside the device enclosure before doing work inside the enclosure. ESD can cause damage to the device.
• Do not touch the electronic circuit boards.
• Disconnect ac power before opening the device enclosure. Failure to do so can result in electrical shock. Electrical shock can cause damage to the device and injury to personnel.

Failure to follow these warnings can result in serious personal injury or death.

Device will not turn on.

1. Make sure ac power is supplied to the device.
2. Make sure ac power to the device is wired correctly.
3. Make sure there are no loose wires on the ac inlet terminal block.
4. Check fuses F1 and F2. Replace them if necessary.

Optional strobe will not signal during an alarm event.

1. Check the user settings for strobe activation. Refer to Gas Configuration.
2. Make sure the strobe wires are connected to the strobe connector.
3. Contact MSA Customer Service.

Internal buzzer will not signal during an alarm event.

1. Check the user settings for buzzer/horn activation. Refer to Gas Configuration.
2. Make sure the buzzer wires are connected to the buzzer connector.
3. Contact MSA Customer Service.

Relays are not operating.

1. Check the user settings for the relays. Refer to Relay Configuration.
2. Test the relay. Refer to Relay Configuration.
3. Contact MSA Customer Service.

No analog communication output.

1. Check the user settings for communications. Refer to Communications Output.
2. Make sure the wire connections are correct.
3. Contact MSA Customer Service.

No digital communication output.

1. Check the user settings for communications. Refer to Communications Output.
2. Make sure the wire connections are correct.
3. Contact MSA Customer Service.