Sb iii tc

[giath]

Please any help
i have unit sb iii TC >> when i set temp to 6C the temp doesnot come , it is going on heat .
Note the foron is oK
please any help i cant express>>>>>>>

[vehikool]

Hi the SB111tc have problems with the 3 way valve these tend to stick in the heat postion, suggest you check this first. If it has stuck recover the gas from the system, strip out the three way valve, polish the inside with wire wool, fit a new 3 way valve repair kit and re assemble with parts liberally oiled, fit new drier, vac and gas, run and test. Hope this cures your fault.
best regards
Tom Vehikool

[charlie patt]

ive also had the wiring rub pull the wire of the coil and check it aint got any power if it has power it will heat but mainly as above says the three way have issues useually around the 5 thousand hr mark