How to troubleshoot a dead Hills Reliance 128 code pad?
- TTina GrossAug 19, 2025
If the Hills Control Panel's code pad appears dead with no lights or sounds, you can try the following: * Measure the output voltage at the Aux Pwr (+) terminals; it should be above 12.8 volt dc. * Disconnect all devices connected to the Aux Pwr (+) terminal, leaving only the code pad connected. * Check for short circuits on devices connected to Aux Pwr (+) terminals. * Verify that AC power and the battery are correctly connected to the panel. * Check the wiring and connections at both the code pad and the panel.