Low reading on lamp meter
JOWA REP-1L, ultraviolet drinking water steriliser
Possible cause
Lamp burnt out, bad connections, ballast fault, wrong supply voltage
What to do
Manufacturer's manual, p. 16Change lamp, check sockets and terminals, check ballast voltages
Other JOWA REP-1L faults
Low reading on intensity meterLamp faulty, dirty chamber, photocell or circuit board faultyBoth meters read zeroLamp faulty or automatic fuse offSolenoid valve does not openLamp fault, intensity alarm, alarm relay faulty
From the manufacturer's manual “EM-26 RE-UV-PURIFIERS”. Check against the original on board before work.