Thermo king triPac Apu not cranking

stumiister

Diesel Truck Tech
Joined
Nov 6, 2011
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Location
Stockton, California
Im working with a tripac apu it is not cranking
I checked all of the fuses in the under bunk control box
Checked the engine on off switch at the engine it is on
Checked the circuit breaker at the under bunck control box it is good
When I turn the unit on the fuel pump comes on and I get fuel to the IP but the engine will not crank
The controller displays a code of "En9" or Eng" not sure which is correct.
Thanks for the assitance.
 
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