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www.thermastor.com • sales@thermastor.comToll-Free 1-800-533-7533
4. Remove the cable clamp holding the impeller fan cable
and ground terminals. Remove the ground wire from
the mounting screw. Disconnect the black and brown
wires from the run capacitor, and cut the blue wire
near the wire nut.
5. Remove the 1/4” machine screws holding the base to
the cabinet. Remove the base from the cabinet.
6. Remove the four 4 mm machine screws that hold the
motor to the lower base. Remove the cable clamp that
holds the impeller fan cable to the bottom of the base.
7. Remove the strain relief
bushing holding the
impeller fan cable in the
top of the base.
4 Service
CAUTION: Servicing the Phoenix Mini-Guardian HEPA
System with its high voltage circuitry presents a health
hazard that could result in death, serious bodily injury, and/
or property damage. Only qualified service people should
service this unit.
4.1 Warranty
A warranty certificate has been enclosed with this unit.
Read it before any repair is initiated. If a warranty repair
is required, call the factory first at 1-800-533-7533 for
warranty claim authorization and technical assistance.
4.2 Impeller Fan Replacement
Occasionally the impeller fan may not start on low speed. If
this occurs, rotate the speed control to high speed until the
impeller fan starts, then adjust it to low speed.
Follow the steps below to change the impeller fan:
1. Unplug the power cord.
2. Remove the top and all air filters.
3. Remove the rear electrical guard held inside the unit
by four mm machine screws and nuts.
Figure 12: Remove guard
Figure 13: Remove cable clamp
Figure 15: Remove strain relief
Figure 14: Remove screws
Clamp
Cable
Cut near
wire nut
Clamp
cable
inside
4 mm
screws