WaterLogic WL900 Operating instructions

WL900 Manual Page 51 – Revision: 5-12-2021

POWER TROUBLESHOOTING INDEX

1. No Power to Unit, LED Panel does not Illuminate

2. Compressor Runs but does not Chill

3. Compressor is not Running

4. Unit has Power, but Water is not Chilled or Heated

5. Unit has Power, LED Panel does not Illuminate or only partially Illuminates

1. No Power to Unit, LED Panel does not Illuminate

Possible Cause Solution

Circuit Breaker tripped Check the circuit breaker, reset any tripped breaker.

Blown Fuse Check Fuse in Unit Replace if necessary.

Loose Power Cord Check that the power cord is properly plugged in.

PCB Failure Check the PCB for Power incoming and outgoing.

2. Compressor Runs but does not Chill

Possible Cause Solution

Condenser is dirty Clean the condensing coil of any obstructions or dust.

Reduction of airflow

across condenser coils

Make sure unit is not under minimum ventilation

requirements.

Compressor very hot to

the touch

Low or lost refrigerant. Refrigerant recharge required.

WL900 Manual Page 52 – Revision: 5-12-2021

3. Compressor is not Running

Possible Cause Solution

Compressor Starting

Circuit

Remove cap on side of compress, inspect for damage or

defects.

4. Unit has Power, but Water is not Chilled and Heated

Possible Cause Solution

Transformer Failure Replace Transformer

PCB Power Cable

Connected Improperly

Check connection of power line to the PCB

PCB Failure Replace PCB

5. Unit has Power, Front Panel Does not Illuminate or only partially

Illuminates

Possible Cause Solution

LED Failure

LED boards may have failed, inspect and replace as

needed.

LED Panel Connection

Ensure the connections from the Front Panel LED boards

to the main PCB are made properly and secure.

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