GRUNDFOS UNILIFT AP Safety Alert – FAQ’s Q: Which products are affected? A: The 1 phase UNILIFT AP12, AP35, AP50 in 50&60Hz, except 60Hz Versions delivered with US plug type. Please refer to the instructions provided on how to identify affected product. Q: Is this warning serious? A: Yes. Affected products could pose a serious threat to users’ health when the products are used for mobile purposes such as dewatering garden ponds etc. and there is no earth leakage circuit breaker (ELCB) installed. Q: What should I do if I have an affected product? A: Please contact Grundfos on 1300 337 733 or email auorders@sales.grundfos.com using subject UNILIFT SAFETY NOTIFICATION to arrange the return and resupply of products. Q: What can happen? A: The affected products can, under a number of circumstances, during installation or mobile use, give an electric shock to users. Q: What is mobile use? A: Mobile use is for example to dewater a pond, so that it is used from time to time on different tasks. It is transported to these different dewatering applications. It is basically any kind of applications a pump is carried around for. Q: What causes this? A: Due to a manufacturing error the wires inside or near the vulcanized plug to the pump can be damaged when the cable is bent heavily. The live wire and grounding cable may be broken on the same level and that can cause a short circuit. Under a number of circumstances and during use where the power cable is moved and bent this may cause that the pump housing is electrified (if no earth leakage circuit breaker (ELCB) of at least 30mA is installed). Q: Can I use a stationary installed pump assembled in pits, tanks and wells (fixed installation)? A: Stationary installed pumps where the power cable is in a fixed position are not a risk (with proper grounding and earth leakage circuit breaker (ELCB)). Q: Why only within the mentioned period? A: The manufacturing error has been corrected, so products from the series produced outside the affected period are not affected. Q: How can the risk be eliminated for pumps used for mobile purposes/applications? A: Only by having the cables replaced. Page 1 of 2
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