Maintenance
5-34  HPR400XD Auto Gas – 806160
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Coolant system filter
Filter replacement
1.   Turn OFF all power to the system.
2.  Remove housing.
3.  Remove and discard filter element.
4.  Install new filter element 027664.
5.  Re-install housing.
6.  Refill with new coolant.
Caution:  Coolant will flow from the filter when its housing is removed. Drain coolant 
before servicing the filter.