FIELD REPAIR/SERVICE
BLANKETROL II, Model 222S
OPERATION AND TECHNICAL MANUAL
Page 76 of 110
5-6. REPLACEMENT OF THE FLOW SWITCH
A. Obtain a replacement flow switch.
B. Drain the reservoir as described in Section (4-2.4.).
C. Remove the rear enclosure panel as described in Section (5-1.1).
D. Locate the flow switch assembly.
E. Remove the two (2) hose clamps, one (1) from the inlet and one (1) from the outlet
fitting.
F. Remove the inlet and the outlet fitting from the flow switch.
G. Carefully pry off and remove the two (2) snap caps from the left side and the right side of
the unit.
H. Remove the four (4) Phillips screws.
I. Carefully lift up the front edge of the top of the unit so that you can see the wire
harnesses and their termination points on the microprocessor board.
J. Locate and disconnect the two (2) position flow switch connector (J9 position) from the
microprocessor board.
K. Feed the flow switch wire harness carefully towards the flow switch, removing any wire
ties as needed.
L. Discard the old flow switch.
M. Install the new flow switch by reversing the removal instructions above.
N. Refill the reservoir as described in Section (4-2.5.).
O. Replace the rear enclosure panel as described in Section(5-1.1).
WARNING
Always
unplug the unit
before accessing internal components during service.
Failure to unplug the unit could result in electric shock.
CAUTION
Always drain the BLANKETROL II to a sanitary drain because
bio-contaminants
may be present in the unit
’s water supply.
Summary of Contents for CSZ Blanketrol II 222S
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