Troubleshooting - Beko Drypoint ACC 4 Instruction/Technical Manual

Section 8: Troubleshooting

Troubleshooting

General troubleshooting
Before specific identification of any fault is looked for, the following general points must be verified:
• Has the unit been damaged externally or are any parts missing?
• Is power being supplied to the unit?
• Was start-up carried out in accordance with the instructions in this manual?
• Are all external valves correctly set for operation?
• Do the operational conditions meet those specified at time of ordering and used for product selection?
Troubleshooting: General
Problem
Poor dewpoint
Incorrect dryer operation
Excessive or loud purge, or purge on
only one tower
38
Possible Cause
Liquid water at dryer inlet
Excessive flow
Low inlet pressure
High inlet temperature
Silencer blocked or damaged
Air leaks
Desiccant life exceeded
Desiccant contaminated
EM is active when air is flowing
through dryer
Power to dryer off while air is flowing
through dryer
Jammed shuttle valves or faulted electrical
components
Jammed Main Shuttle Valve
Faulty Solenoid Valve
Not utilizing Energy Management feature
Action
Check pre-filtration and drains
Check actual flow against maximum
specified
Check against specification
Check against specification
Replace silencer
Tighten joints or fit new seals
Replace desiccant cartridges
Check inlet filter and drains,
replace cartridges
Check EM wiring, logic and/or control
method used
Ensure that power is on whenever air is
flowing through dryer
See electrical operation troubleshooting
section
Clean or replace shuttles
Clean or replace solenoid valve
Refer to Energy Management instructions
(Section 8)
Heatless Desiccant Dryers | Instruction Manual