I'm using 24V on the Mesa. I tested the relay according to the service manual with a multimeter set to continuity and the contacts do not close even though the "ok to move" LED is lit on the inverter board indicating the relay should be closed. Thermal Dynamics support says no wetting resistor is required and the data sheet for the Axicom V23079-A1005-B301 relay says 10mA @ .2V for minimum. At some point, when I have time, I will attempt to replace the relay...unfortunately you have to completely disassemble the unit to get at it. I will try putting a resistor across it just in case.Thanks to everyone for their help.