Ernest F Newcastle , OK December 21, 2015 Appliance: Model PRG486GDUS Not heating over 250 deg Initially replaced dual safety valve because igniter impedance tested ok and it was glowing, but only glowing red/orange. Wouldn't light at all after replacing safety valve, so I replaced igniter and now it works great. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes