56(65)
Failures Possible reasons Solutions
Circuit breaker tripping
off at turning on main
switch.
Short circuit of main circuit.
Transformer short circuit or
connected with earth wire.
Problems of circuit breaker.
Check electrical wire.
Replace circuit breaker.
Circuit breaker tripping
off at turning on pump
switch.
Pump motor coil short circuit.
Problems of circuit breaker.
Check pump motor.
Replace circuit breaker.
Circuit breaker
trippingoff after short
heater output.
Heater tube short circuit or shell
contact.
Problems of circuit breaker.
Replace heater tube.
Replace circuit breaker.
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