Hey guys need help. My parents called me to look at their PF-100. Error code shows an exhaust sensor probe issue. Unit will not come above the "pilot fire" mode. Ohm tested the sensor and with it in ambient air (65-68*) I get a reading of 180 ohms. Is this about right? Looking for a solution to get them through the weekend, parts aren't available until Monday am.
PS I am a service tech, just don't work on pellet fired much (like at all).
Thanks