Merits Q155, Руководство по обслуживанию, Страница: 43 / 57

Q155 Service Manual
6-2
Table 6-1 Troubleshooting
SYMPTON PROBABLE CAUSE SOLUTION
Power loss. Refer
“
Power loss solution
”
Faulty circuit board. Replace faulty circuit board.
Faulty electrical connections Check electrical connections.
Faulty compressor. Replace faulty air compressor.
Compressor does not
run when power
switch ON
Faulty capacitor. Replace faulty capacitor.
Faulty electrical connections Check electrical connections.
Faulty capacitor Replace faulty capacitor.
Faulty Cooling Fan Replace faulty Cooling Fan
Faulty temperature sensor Replace faulty temperature sensor
Faulty circuit board Replace faulty circuit board
Compressor shut
down intermittently
when power switch
ON
Faulty compressor Replace faulty compressor
Faulty circuit breaker Replace faulty circuit breaker Circuit breaker trips
repeatedly when
power switch ON
Faulty circuit board Replace faulty circuit board
Faulty electrical connections Check electrical connections
Faulty buzzer Replace faulty buzzer
Buzzer not sound
Faulty circuit board Replace faulty circuit board
Faulty regulator Replace faulty regulator.
Faulty solenoid valve Replace faulty solenoid Valve
Faulty sieve bed Replace faulty sieve bed
Flow rate unstable
Leaking
Refer section 4.17 Leak Test and repair
leaking.
Defective electrical
Connections
Check electrical connections Cooling fan does not
working
Defective Cooling fan Replace faulty cooling fan
Clean foam filter or replace
Check the intake filter or replace it
Restriction in air passages
Check all the tubes from the exhaust of
air compressor down to the oxygen
outlet or Replace the related faulty
tubes
Leaking
Refer section 4.17 Leak Test and repair
leaking.
Faulty or loosened regulator Replace or reset the regulator
Faulty solenoid valve Replace faulty solenoid valve
Relief valve release on air Replace relief valve
Low flow rate
Compressor flow rate not
enough
Repair or replace compressor