Repair
311075V 53
Electric Motor
Test Motor
If motor is not locked up by pumps, it can be
tested using a 9 V battery. Open recirculating
valves, disconnect J4 or J11 from control
board, see F
IG
. 12, page 49. Touch jumpers
from battery to motor connections. Motor
should turn slowly and smoothly.
Removal
2. Remove four screws (207) and shroud
(206). See F
IG
. 14.
3. Remove drive housing/pump assemblies,
page 51.
4. Disconnect motor cables as follows:
a. Find control board at back of control
module, see F
IG
. 12, page 49.
b. Unplug motor power connector from J4
(240 V units) or J11 (120 V units).
c. Unplug motor temp switch harness from
connector J7.
d. Unplug cable (37) from fan (202). See
F
IG
. 15.
e. Thread motor power switch harness out
bottom of control module and cable
channel, to free motor.
5. Remove screws holding motor to bracket.
Lift motor off unit.
Installation
1. If replacing motor, install fan assembly and
fan mount threaded bushing on new motor.
2. Place motor and fan on unit. Thread motor
switch harness into control module.
3. Fasten motor with screws underneath. Do
not tighten yet.
4. Plug 3-pin connector J7 to board.
5. Plug Motor Power switch harness to con-
nector J4 (240 V units) or J11 (120 V units).
6. Install drive housing/pump assemblies,
page 51. Reconnect inlet assemblies to
pumps.
7. Tighten motor mounting screws.
8. Return to service.
If replacing a component with electrical
cabling, remove one supply tank, page
41.
1. See Before Beginning Repair, page 41.
Relieve pressure, page 29.
NOTICE
Motor is heavy. Two people may be required
to lift.
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