Blower tube on the PB-2520 is loose or detaches during use

Depending on the serial number, certain PB-2520 units may require replacement of the fan housing. A change to the fan housing was made in October 2017. Affected serial numbers include, P46814001001-P46814999999. This repair is covered under the ECHO® warranty if the unit is still within the applicable warranty period. The unit should be taken to an authorized ECHO® dealer for evaluation. 

Fan Case:

If the unit is no longer within the applicable warranty period, the fan case would need to be purchased through an ECHO® dealer or online.