Troubleshooting
ReliaTel Control
The RTRM has the ability to provide the service personnel with some unit diagnostics and system status information.
WARNING
Hazardous Service Procedures!
The maintenance and troubleshooting procedures recommended in this section of the manual could result in exposure to electrical, mechanical or other potential safety hazards. Always refer to the safety warnings provided throughout this manual concerning these procedures. When possible, disconnect all electrical power including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. When necessary to work with live electrical components, have a qualified licensed electrician or other individual who has been trained in handling live electrical components perform these tasks. Failure to follow all of the recommended safety warnings provided, could result in death or serious injury.
Before turning the main power disconnect switch “Off”, follow the steps below to check the ReliaTel Refrigeration Module (RTRM). All diagnostics & system status information stored in the RTRM will be lost when the main power is turned “Off”.
To prevent injury or death from electrocution, it is the responsibility of the technician to recognize this hazard and use extreme care when performing service procedures with the electrical power energized.
1.Verify that the Liteport LED on the RTRM is burning continuously. If the LED is lit, go to Step 3.
2.If the LED is not lit, verify that 24 VAC is presence between
3.Utilizing “Method 1” or “Method 2” in the “System Status Checkout Procedure ” section, check the following:
System status Heating status Cooling status
If a System failure is indicated, proceed to Step 4. If no failures are indicated, proceed to Step 5.
4.If a System failure is indicated, recheck Steps 1 and 2. If the LED is not lit in Step 1, and 24 VAC is present in Step 2, the RTRM has failed. Replace the RTRM.
5.If no failures are indicated, use one of the TEST mode procedures described in the “Unit
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