Mermaid REFRIGERATION/FREEZER installation instructions Compressor Not Running, No Start Attempt

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(3) Run all applicable tests before assuming Module or Compressor to be faulty.

B: Compressor Not Running, No Start Attempt.

 

Probable cause

Action

1 Supply voltage too low

Check voltage with a digital multi-meter

 

 

at the terminals on the Module. This

 

 

must be 11.7v or more for a 12v supply

 

 

& 24v or more for a 24v supply. Inspect

 

 

power supply, ground connections &

 

 

components for integrity. Check wire

 

 

sizing. Charge batteries if necessary.

2 Supply voltage too high

If a 12v supply is faulty & delivers over

 

 

17v, the compressor will not run. If it is

 

 

over 24v, it will assume that it is a 24v

 

 

supply & act accordingly.

3

Polarity incorrect

Check that the polarity is correct at the

 

 

Module.

4

Faulty thermostat

Remove the thermostat wires & jumper

 

 

the terminals that they were on together

 

 

temporarily. If the system then runs,

 

 

make the connection permanent &

 

 

control the system manually from the

 

 

breaker on your supply panel. Replace

 

 

thermostat as soon as possible.

5

Thermostat wired

Refer to the installation instructions &

 

incorrectly, or faulty

confirm that connections are as they

 

connections.

should be. Ensure that the thermostat

 

 

connectors are pushed firmly on to the

 

 

Module terminals.

6Multi-speed board incorrectly installed (if fitted)

Check to make sure that the 2 connectors at the rear of the multi-speed board are attached to the C & T terminals of the Module.

7 Multi-speed board faulty

Remove board & jumper terminals C &

(if fitted)

T on the Module. Note; If the thermostat

**Optional Part ** wires are connected directly to C & T on the Module, the compressor will run at its slowest speed.

8 Compressor plug not

Disconnect the Module by removing the

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Contents KOOL-TEMP Table of Contents Section Overview IntroductionSection Condenser Installation InstallationMounting Position Section Safeguards Section Control ModuleAlarm Indicator Compressor Non-StartCompressor Speed Too Low Fan ProtectionSection Evaporators LocationSection Thermostats Thermostat Sensing TubeMounting Refrigerator & Freezer ThermostatsSection Quick Connect Refrigerant Connections OperationConnecting the Quick Connect Fittings Power SupplySection Electrical Section Troubleshooting Guide Wire SizeConnections, Power Overload ProtectionCompressor Not Running, No Start Attempt System Runs, Box Temperature Too High Page System Runs, Box Temperature Too Low KOOL-TEMP Wiring Schematics Excessive Frost Build-UpDanfoss Compressors 12/24V and 12/24V W Wiring of Danfoss Electronic Module

REFRIGERATION/FREEZER specifications

Mermaid Refrigeration/Freezer appliances stand out in the market due to their superior efficiency and reliable performance, making them a preferred choice for both residential and commercial applications. These advanced cooling systems are designed to preserve food, beverages, and other perishable items at optimal temperatures, ensuring freshness and safety.

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