sb300

[sly d.]

do anyone have the service manual on pdf for a sb 300
Smart reefer. I need it really bad thanks

[sly d.]

I'm working on a thermoking sb 300 & it keep giving me
a code 21 & 23 cooling cycle fault what could be the problem. I need help thanks in advance

[IRMechanik]

I'm working on a thermoking sb 300 & it keep giving me
a code 21 & 23 cooling cycle fault what could be the problem. I need help thanks in advance

Unit is sensing a low temperature difference between return and discharge air. Most likely cause, low on *****.

[frigopat]

Check your gas pressure with your gauges.