TM 9-2320-363-34-1
Table 3-1. Troubleshooting (Cont)
Malfunction
Test or Inspection
Corrective ActIon
ARCTIC HEATER (CONT)
Step 2.
Check for defective thermostat.
Replace thermostat (page 25-28).
7. HEATER BURNS ON HIGH HEAT CONTINUOUSLY.
Check for defective diode.
Replace diode (page 25-11).
8. HEATER BURNS ON LOW HEAT CONTINUOUSLY.
Step 1.
Check for defective thermostat.
Replace thermostat (page 25-28).
Step 2.
Check for defective diode.
Replace diode (page 25-11).
9. HEATER SMOKES EXCESSIVELY.
Step 1. Check for leaking fuel control valve.
Replace fuel control valve (page 25-14).
Step 2. Check for restriction in exhaust system.
Clean exhaust system.
Step 3. Check for low voltage at batteries.
Replace batteries (TM 9-2320-363-20).
10. BLOWER WILL NOT STOP WHEN HEATER IS SHUT OFF.
Check for defective flame detector switch.
Replace flame detector switch (page 25-30).
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