123456TM 9-4940-568-103-18 Table 3-1. Troubleshooting - CONT.MalfunctionTest or InspectionCorrective ActionSHELTER HEATER1.HEATER FAILS TO START OR DOES NOT STAY RUNNING.Step 1. Check HEATER thermostat (1) power switch (2) is in ON position and green and red operating light (3) is on.Position power switch to ON position.Step 2. Check 24 VOLT DC PANEL (4) power switch (5) is in ON position.Position power switch to ON position.Step 3. Visually check fuel level in fuel tank.If fuel tank is empty, add fuel to tank (Para 2-16).Step 4. Check HEATER circuit breaker No. 3 (6) on 24 VOLT DC PANEL (4) has been tripped.Reset breaker and try again. If breaker trips, notify Unit Maintenance.
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