Table 3.1. Refrigeration System Diagnostics/Troubleshooting; Troubleshooting Guide - Perlick CR24D Service Manual

Column Refrigeration Service Manual

3.0 Troubleshooting Guide

3.1 Refrigeration System
Use this diagnostic guide to identify issues and to locate applicable instructions within this service manual.
This diagnostic guide can be used for any of Perlick's Back Bar Refrigeration Products.
PROBLEM
Not Cooling
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DANGER
ELECTROCUTION HAZARD!!
Never attempt to repair or perform
maintenance on the unit until the Main
electrical power has been disconnected.
CAUSE
Power Supply
Unplugged, off, blown fuse, tripped or
defective circuit breaker
Loose Connection
Power Requirements not within
specification
Cord and Plug
Loose Connection
Defective
Unit in Showroom Mode
Disable showroom mode
Internal Wiring
Loose Connection
Miswired
Evaporator Fan Motor
Loose Connection
Defective
Condenser Fan Motor
Loose Connection
Defective
Evaporator
Clogged
Frozen
Condenser
Air flow obstructed
Dirty Condenser

Table 3.1. Refrigeration System Diagnostics/Troubleshooting

SOLUTION
Check for power at the receptacle
Check for continuity of wires
Verify that power at receptacle is the same
as nameplate rating
Check for continuity of wires
Replace
See User Interface Section #.##
Check for continuity or voltage at control
board (or check for heartbeat on control
board) See Control Board Section
Verify wiring by comparing to wiring
diagram Section 5.3.
Check Continuity or power at fan motor
Verify Component Specifications
Check Continuity or power at fan motor
Verify Component Specifications
Remove Obstruction
De-Ice coil
Remove Obstruction
Verify condenser is clean
7.1.
13