EBME Forums Forums Management Medical Equipment Management Cpap service needed every 12 months?

Hi
Just had a read through the Updated guidance MHRA (April 2014) on one of the other topics. In Managing medical devices 8.1 Maintenance and repair it states - Frequency and type of planned preventive maintanance should be specified in line with the manufacturers instructions and taking account of expected usage and environment it is used in. The Resmed S9 user guide states - service and maintenance of the device generally should not be required during the 5 year design life of the machine. All our machines are used in the community and some will need servicing every 12 months but othrs could be seen every 2 years. Any advice on this would be appreciated.