36. WINTERIZATION KIT HEATERS WITERIZATION KIT HEATERS WILL NOT START Step 1. Perform Electrical Troubleshooting malfunction #22. SMOKY HEATER EXHAUST AFTER 5 MINUTES CONTINUOUS OPERATION

33. SMOKY HEATER EXHAUST AFTER 5 MINUTES CONTINUOUS OPERATION

38. FAN RUNS CONTINUALLY WITH SWITCH OFF; RUN LAMP STAYS ON; NO HEAT PRODUCED

/.25ton/TM-9-2320-289-20 CUCV Series Trucks at Unit level Manual
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TM 9-2320-289-20 Table 2-3. Mechanical Troubleshooting (Con’t) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 35. 36. WINTERIZATION KIT HEATERS WITERIZATION KIT HEATERS WILL NOT START Step 1. Perform Electrical Troubleshooting malfunction #22. SMOKY HEATER EXHAUST AFTER 5 MINUTES CONTINUOUS OPERATION 37. WARNING Before checking for restrictions, allow exhaust pipe to cool. Failure to follow this warning may result in serious burns. Step 1. Check air inlet or exhaust outlet for restrictions. Remove any restrictions. If there are no restrictions, replace heater. (See paragraph 11-8, 11-16, or 11-21) STARTS BUT SHUTS OFF COMPLETELY Step 1. Ensure that truck fuel tank is at least ¼ full. Add fuel if low. Step 2. Inspect air passages for restrictions. Clear restrictions. Allow system to cool before retesting. 2-49

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