25302
Carrier Transicold
Warning

Check Input Voltage STP3

Input voltage out of specification at the STP3 module.

Possible causes

  • Charging system issue
  • Loose power cable
  • Interference from spark plug or injector wire
  • Poor chassis ground

Recommended actions

  • Check battery and alternator cables
  • Inspect STP power fuses
  • Clean ground contacts
  • Charge battery if necessary

Can't find your code? Talk to an expert

$150

One-on-one phone session with a Low Temp refrigeration tech. Emergency temporary assistance only.

Have a question? Ask the community

Thousands of refrigeration mechanics read and answer for free. Post your case in under 1 minute.

Need a professional diagnosis?

Low Temp Service — refrigeration experts in Florida.

Contact us