Help with Buderus Logamatic 2107

gleinz

Hello,



I'm having 2 issues with my Buderus Logamatic 2107:



1) The outdoor temperature sensor failed... did some research, and I removed the thermistor to have it default to 14F (-10C) and have ordered a replacement. My question is, does anyone know what type of thermistor is used in the sensor? I've tried to look a few up and based on the Temperature vs. Resistance chart in the Buderus documentation, I think something like this might work: <a href="http://www.jameco.com/Jameco/Products/ProdDS/207037.pdf">http://www.jameco.com/Jameco/Products/ProdDS/207037.pdf</a>



2) When I check the "Hours Run" function, it always reads zero... does anyone know how to fix this?





Thank you!

R Mannino

2107

I would just replace the factory sensor with one from Buderus, it really makes the most sense.



To get the hours run function to work requires a small amount of rewiring at the control.



http://www.buderus.us/files/201006231702550.6720618142_2107_Installation_Service.pdf



page 63 terminal 8 powers the hours run timer