My ptg-74pvn-2 is flashing a 24 code when i hold the on button. when i release the button a 120 is displayed then the unit shuts down, what causes this

February 2021 0 2 Report

My ptg-74pvn-2 is flashing a 24 code when i hold the on button. when i release the button a 120 is displayed then the unit shuts down, what causes this

Water Heaters - Rheem - Paloma PTG-74PVN / RTG-74PVN Natural Gas Indoor