I'm trying to resolve a current issue we have with a daikon vrv2. It's showing a j4 fault . Outdoor Low pressure saturation thermistor. So I rang up technical because I wanted to check the resistance of the thermistor( I was ringing to check what range they should be at my applied temp.) But I was then told that j4 is a problem with the gas , technical didn't seem to want to explore any other possibility , just kept going on about the gas " young sir "! Said about reclaiming and checking weight that's on commissioning sheets. So my question is this . Does anybody know what range these thermistors should be at? And has anybody else come up with the same problem? Thanks