andrews MAXXflo EVO CWH 90/302 Installation And Maintenance Manual page 64

6.2.10 bACK FLOw PREVENTION VALVE
• Remove the 8 Torx screws holding the cover plate onto the air arm and gently pull cover away from the seal.
• The Back Flow Prevention Valve (BFPV) is located inside the cover itself and can be slid out for inspection.
• Inspect BFPV for damage and operation. Replace if necessary
• Inspect air arm seal for damage. Replace if necessary
• Assembly is the reverse
6.2.11 OVERHEAT THERMOSTAT
• Locate the overheat thermostat behind the GUI bridge (see illustration below)
• Remove the thermostat from the clip by pushing the assembly upwards
• Disconnect the two wires
• Assembly is the reverse
6.2.12 AIR PRESSuRE SwITCH
• Remove the two electrical connections from the air pressure switch
• Remove the air tube
• Unclip the air pressure switch from the connection ring.
• Fitting is the reverse
Maintenance
Push thermostat
upwards
64
Tube on rear connector
MAXXflo EVO