
FIELD REPAIR/SERVICE
BLANKETROL III, Model 233
OPERATION AND TECHNICAL MANUAL
Page 113 of 131
TROUBLESHOOTING GUIDE
OBSERVATION
POSSIBLE
PROBLEM
ACTION TO BE TAKEN
T. Unit is set to operate
in a control mode; the
water flow indicator
does not move, i.e.:
water not circulating.
(cont.)
Clogged tubing of
blankets.
Use forced air to drain
blankets.
Clogged couplings.
Use forced air to clear
couplings.
U.
Unit is set to
operate in a control
mode. Blanket does
not cool.
Operator error; switches
not set correctly.
Water not circulating.
Correctly set switch. See
Section (3.).
See Observation T.
Compressor running but
not cooling.
Check for leak. Recharge
system.
Check solenoid valve. (Tasks
to be done by a qualified
refrigeration technician.)
Check solenoids in-line fuse
located at J1 position, pin 11
(violet wire). Refer to wiring
diagram.
Compressor not running
Check for voltage
compressor:
a. If line voltage is
present.
b. If line voltage is not
present: Replace micro-
processor board. See
Section (5-15.).