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).