Any industrial evaporative cooler is an investment. But like all mechanical equipment, how well you maintain it directly determines how long it lasts — and how much it saves you.

A well-maintained Siboly air cooler can operate efficiently for 8–12 years. Neglect it, and you'll see performance drop by 30% or more within the first year alone.

This guide covers everything you need to know: from daily checks to seasonal overhauls, with specific recommendations for Siboly models.

Why Maintenance Matters: The Numbers

Bottom line: For a facility running 10 Siboly units, proper maintenance saves $1,600+/year in energy costs alone — before counting repair and replacement savings.

Daily Maintenance (5 Minutes)

1. Check Water Level

·         Ensure the water tank is at least 1/3 full before starting

·         For models with auto-refill (XZ13-080, XZ20K+), verify the float valve isn't stuck

2. Inspect Airflow

·         Stand 2 meters in front of the cooler — airflow should feel consistent

·         Uneven airflow = dirty or blocked cooling pads

3. Drain & Refill (In Hard Water Areas)

·         In areas with hard water (TDS >300 ppm), drain standing water daily

·         Prevents mineral scale buildup on the cellulose pads

Weekly Maintenance (15 Minutes)

1. Rinse Cooling Pads

The cellulose cooling pads are the heart of your evaporative cooler. When dust accumulates, airflow drops and cooling performance suffers.

How to rinse:

Turn off and unplug the unit

Open the pad access panel

Spray water from the clean side outward (not the dirty side inward)

Let pads dry before re-installing

Pro tip: If your facility is in a dusty environment (construction sites, textile mills, woodworking shops), rinse pads twice a week.

2. Clean the Pre-Filter

The pre-dust filter catches large particles before they reach the pads. A clogged filter restricts airflow by up to 40%.

·         Remove and tap gently to dislodge loose dust

·         Vacuum with a soft brush attachment

·         Wash with mild soap if greasy (common in commercial kitchens)

Monthly Maintenance (30 Minutes)

 1. Deep-Clean Water Tank

 Mineral scale and algae can build up in the water tank, especially in warm climates.

Steps:

Drain all water

Scrub tank interior with a soft brush and white vinegar solution (1:10 ratio)

Rinse thoroughly with clean water

For stubborn scale: use a commercial descaling agent (citric acid based)

2. Check Drain Valve & Float

·         Drain valve: Open and close to clear debris. A stuck drain causes standing water → algae growth.

·         Float valve: Lift gently — it should move freely. If stuck, clean the valve seat.

3. Inspect Cooling Pads for Wear

Quarterly Maintenance (1 Hour)

1. Replace Cooling Pads

Siboly's 5090 cellulose pads typically last 6–12 months depending on water quality and usage. Replace when:

·         You see light through the pad when holding it up

·         The pad feels stiff and brittle rather than flexible

·         Airflow has noticeably decreased despite cleaning

2. Inspect & Lubricate Motor Bearings

·         Remove the motor cover

·         Check for dust accumulation — vacuum if needed

·         Apply 2–3 drops of high-temperature grease to bearing points

·         Do not over-lubricate — excess grease traps dust

3. Check Fan Blades & Housing

·         Inspect blades for dust buildup → clean with a damp cloth

·         Check for blade wobble (indicates bearing wear)

·         Tighten mounting bolts if loose

4. Verify Electrical Connections

·         Check power cord for fraying

·         Ensure control panel connections are secure

·         Test remote control receiver (if applicable)

Annual Maintenance (2–3 Hours)

1. Full System Overhaul

2. Replace Seals & Gaskets

Over time, the seals around the water tank and pad frames degrade. Replace to prevent air leaks that reduce cooling efficiency.

3. Deep-Clean or Replace Water Distribution Tubing

Mineral deposits inside the tubing can cause uneven water distribution. Run a vinegar solution through the system, or replace tubing every 2 years.

Seasonal Storage Guide

If you store units during cooler months:

Drain all water completely — including the pump and distribution lines

Dry the pads thoroughly before storage to prevent mold

Remove batteries from remote controls

Cover the unit with a breathable cover (plastic traps moisture)

Store in a dry, sheltered area — ideal temperature: 10–30°C

Model-Specific Maintenance Notes

When to Call a Professional

DIY-friendly:

·         Daily/weekly cleaning

·         Pad replacement

·         Filter cleaning

·         Drain valve maintenance

Call a technician:

·         Motor replacement or rewinding

·         Pump failure diagnosis

·         Control board repair

·         Fan balancing

·         Refrigeration circuit (on hybrid models)

Quick Reference Card

Maintain your Siboly cooler in three simple habits:

☐ DAILY (2 min)  → Check water level, feel airflow

☐ WEEKLY (15 min) → Rinse pads, clean pre-filter

☐ MONTHLY (30 min) → Deep-clean tank, check float valve

☐ QUARTERLY (1 hr) → Replace pads, lubricate motor

☐ ANNUALLY (2 hrs) → Full overhaul, replace seals