SMX TG-V module

[giath]

The problem is when I setpoint the tempreture at , for example -10 C the the temprature comes on up and up + 1 ,2,3 ...+10C
and so on so forth , I tried evry thing at all .:off topic:
any help is appreaciat
thank you

[SKOOBY]

Are you sure its not stuck on heat cycle / 3 way valve etc