FUEL FAILS TO IGNITE.

TM 3-4230-209-30&P

2-20

TROUBLESHOOTING (CONT)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

WATER HEATER (CONT)

5. FUEL FAILS TO IGNITE.

Step 1. Check for excessively worn or defective breaker points in the combustor

magneto(1).

Replace breaker points (para 2-46).

Step 2. Check for defective ignition cable. See WATER HEATER DOES NOT HEAT

WATER, step 3.

Replace defective ignition cable (para 2-53).

6. WATER HEATER SHUTS DOWN DURING OPERATION.

Step 1. Check for defective thermostatic switch S1. See WATER HEATER DOES NOT

HEAT WATER, step 2.

Replace thermostatic switch S1. See paragraph 2-33.

Step 2. Check for defective wiring. Follow procedures of FUEL PUMP AND IGNITION

DRIVE MOTOR WILL NOT START WITH HEATER CONTROL SWITCH IN HEATER

ON POSITION.

Replace wiring (para 2-44).