Essick SI-500S Owner'S Manual Download Page 5

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Trouble shooting

Problem Cause Solution

Motor cycles on and off

Motor pulley set too large
Excessive belt tension
Blower shat frozen

Adjust motor pulley
Adjust belt tension
Lubricate or replace bearings

Water draining from overflow

Float improperly adjusted
Lime build up in float valve

Adjust float
Clean or replace float

Blower shakes

Belt or pulley loose

Adjust or tighten

Fails to start

No electrical power
Blown fuse or popped circuit breaker

Check power
Replace or reset

Not cooling

Water supply turned off
Blocked water distributor

Check water supply
Clean distributor

Maintenance

Caution: turn off all electrical power to the cooler before opening or attempting service of any kind

The motor is equipped with automatic thermal protection. If it shuts off for any reason, it can start back up without warning!

Occasionally inspect your cooler for leaks, loose belt, blocked water lines, correct belt
alignment or excessive residue build up on the pads.

Belt tension

At the proper tension, the belt will deflect ½” to ¾” when 3 to 5 pounds of pressure is
applied to the belt approximately half way between the blower and motor pulleys.
Adjust the belt tension using the motor bracket do not change the diameter of the pulley
in order to adjust the belt tension.

Lubrication

Lube the oil cups on the blower bearing. Use SAE20 or SAE30 Non-Detergent oil. Oil the
blower motor only if oil holes exist.

End of season

1. Drain and clean the reservoir. Do not get water on the blower motor or pump motor.
2. Remove the belt and hang it from the motor pulley.
3. Remove the pads and clean carefully.
4. Remove water distributor and hose out with garden hose. Use a small nail to clean any

deposits from the water holes.

Pad Replacement

Lime build up can occur in the water reservoir and on the pads. Clean this off at least
once per season. If any rust or bare metal spots occur on the cabinet, the metal should be
sanded, primed and painted with good quality paint.

1/2" to 3/4"

Deflection

1. Remove wet section top.
2. Remove water distributor assembly.
3. Remove and discard old pads.
4. Install new pad set. Refer to diagram below or pad installation instructions

for correct orientation.

5. Ensure that water distributor pad is centered over cooler pads.
6. Carefully replace water distributor; ensure pads are not damaged while

replacing assembly.

7. Replace wet section top.

Weight

Model

Dry Operating

SI500-S 153

224

SI500-D 153

224

SI700-S 184