GE VH UL series User Manual
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Contents
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Critical PowerModifications reserved Page 24/25GE_UPS_OPM_VHU_0K7_3K0_XUS_V011.docx Operating Manual VH700 UL, VH1000 UL, VH1500 UL, VH2000 UL & VH3000 UL7 TROUBLESHOOTINGWhenever a malfunction occurs, first check external factors (e.g. connections, temperature, humidity or load) to determinewhether the problem is caused by the unit itself or by its environment. Subsequently check the thermal circuit breaker: itmay be tripped. If so: reset it (see fig. 3.4.a/b) and be sure that the UPS is not overloaded.The following chart is a simple troubleshooting checklist only. If the suggested solution does not succeed, or if theinformation is insufficient to solve the problem, please contact your dealer or consult www.gecriticalpower.com.PROBLEM POSSIBLE CAUSE SOLUTIONThermal Circuit Breaker (TCB) trippedUPS overload Reduce load, reset TCB (2, fig. 3.4.a/b)System failure Contact your dealer or consultwww.gecriticalpower.comUPS will not switch on (without using'battery start') and the output hasbeen off for a few secs. (see also4.3.4)Line cord not connected Read 3.6.2 Connect line cordDead wall socket outlet, or mainsvoltage out of limits Contact qualified electricianTripped Thermal Circuit Breaker See aboveLEDs ‘operation’ and ‘alarm’ blink,buzzer sounds 1/2 secs. UPS doesnot start.P (phase) and N (neutral) arereversed at the UPS input in asystem with grounded Neutral.In a system with grounded Neutral:reverse the mains plug.In other systems: disable theindication. See 4.4.13 and 4.5.In case of doubt contact a qualifiedelectrician.UPS switched off automaticallyUPS overtemperature Allow UPS to cool downMains failure, battery discharged Wait until mains returnsProgrammed shutdown in progress See 4.4.11The load is < 5% of the max. loadand no mains power is present.(No-load shutdown function is active,see 4.3.2)Wait until mains returnsLEDs ‘alarm’ and ‘on battery’ blink,buzzer sounds 1/5 secsBattery test just after installation ormains failureAllow the UPS to recharge thebatteriesBattery test shows weak battery Have the batteries replaced |
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