Essick Air ADA35, ADA51 Troubleshooting Guide, Winter Shut-Down, Problem, Possible Cause, Remedy

Models: ASA35 AUA7112 ADA5112 ASA7112 ADA35 AUA5112 AUA51 ADA7112 ADA71 ASA5112 ASA71 AUA71 ASA51 ADA51

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• Check belt tension.
Fig. 11

Check belt tension.

A 3 lb. force

3 Lb.

should deflect the belt

3/4 inches (see

3/4 Inches

Fig. 11). Readjust belt if needed.

 

Oil bearings. The blower bearings and cooler motor in this unit should be oiled with a few drops of non-detergent 20/30 weight oil once each year. The motor

does not need oil if it has no oil lines for oiling. Motors that have no oil lines are lifetime oiled at the factory and require no further oiling for the life of the unit.

Winter Shut-DownCAUTION: Do not over oil. Over oiling can cause motor burn out, due to excessive oil getting into motor winding.

spout and check for any blockage. After cleaning, reinstall the base onto the pump. Press firmly to make sure it is secure. Reattach the pump to the mount in the cooler using the plastic retainer to ensure that the pump will not overturn. Do not forget to replace the spout and water delivery tube onto the pump outlet.

Check bleed-off valve to be sure it is not clogged.

Winter Shut-Down

Drain water. Always drain all of the water out of the cooler and water

supply line when not in use for prolonged periods, and particularly

at the end of the season. Keep the water line disconnected from both

the unit and water supply so that it does not freeze.

Clean pump. Cleaning the pump is necessary once a year at start-up. For your safety, turn unit off and unplug motor and pump. Remove the pump from the mount slot. Remove the base of the pump as shown in Fig. 12. Clean the pump and turn the impeller to ensure free operation. Remove the pump

Remove

Base

Impeller

Fig. 12

Unplug motor and pump. When cooler is not used for extended

periods unplug the motor and pump from inside cooler.

Cover unit. To protect the life of the finish, a cover for the unit is

suggested in extended periods of non use.

By following the operating, installation, and maintenance suggestions as outlined, you can get many years of efficient and satisfactory service from your cooler. In the event additional information is desired, your dealer will be more than glad to assist you in every possible way.

Troubleshooting Guide

Problem

 

Possible Cause

 

Remedy

 

Failure to

1.

No electrical power to

1.

Check power

 

start or no

 

unit

 

 

 

air delivery

• Fuse blown

• Replace fuse

 

 

 

• Circuit breaker tripped

Re-set breaker

 

 

 

• Electric cord damage

• Replace cord

 

 

 

2.

Belt too loose or tight

2. Adjust belt tension

 

 

 

3.

Motor overheated

3.

Determine cause of

 

 

 

 

 

 

overheating

 

 

 

• Belt too tight

• Adjust belt tension

 

 

 

• Blower bearings dry

• Oil blower bearings

 

 

 

• Motor pulley diameter

• Adjust pulley to cor-

 

 

 

 

too large

 

rect diameter

 

 

 

4.

Motor locked

4.

Replace motor

 

 

 

 

 

 

 

 

Inadequate

1.

Insufficient air exhaust

1.

Open windows or

 

air delivery

 

 

 

doors to increase air

 

with cooler

 

 

 

flow

 

running

2.

Belt too loose

2. Adjust belt tension or

 

 

 

 

 

 

replace if needed

 

 

 

3.

Pads plugged

3.

Clean pads

 

 

 

4.

Motor underloaded

4. Adjust pulley

 

 

 

 

 

Water drain- 1. Float arm not adjusted

1. Adjust float

 

ing onto

 

properly

 

 

 

roof

2.

Overflow asembly leak-

2. Tighten nut and over-

 

 

 

 

ing

 

flow pipe

 

 

 

 

 

 

 

 

Musty or

1.

Stale or stagnate water

1.

Drain pan and clean

 

unpleasant

 

in cooler

 

pads

 

odor

 

 

 

 

 

Problem

 

Possible Cause

 

Remedy

Motor

1.

Low voltage

1.

Check voltage

cycles on

2.

Excessive belt tension

2. Adjust belt tension

and off

3.

Blower shaft tight or

3.

Oil or replace bear-

 

 

 

locked

 

ings (Unplug unit)

 

 

4.

Bearings dry

4.

Oil bearings

 

 

5.

Motor pulley diameter

5. Adjust pulley so full

 

 

 

too large causing motor

 

load ampere rating of

 

 

 

overload

 

motor is not exceeded

 

 

 

 

 

 

Noisy

1.

Bearings dry

1.

Oil bearings

 

 

2. Wheel rubbing blower

2.

Inspect and realign

 

 

 

housing

 

(Unplug unit)

 

 

3.

Loose parts

3. Tighten loose parts

 

 

 

 

 

 

Inadequate

1.

Inadequate exhaust in

1.

Open windows or

cooling

 

house

 

doors to increase air

 

 

 

 

 

flow

 

 

2.

Pads not wet

2.

Check water distribu-

 

 

 

 

 

tion system

 

 

• Pads plugged

• Clean pads

 

 

• Dist. tube holes clogged

• Clean

 

 

• Pump not working prop-

• Replace or clean

 

 

 

erly

 

pump (Unplug unit)

 

 

 

 

 

 

Excessive

1.

Insufficient air exhaust

1.

Open doors or win-

humidity in

 

 

 

dows

house

 

 

 

 

4

110498-2

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Essick Air ADA35 Troubleshooting Guide, Winter Shut-Down, Problem, Possible Cause, Remedy, Check belt tension, 110498-2