Panasonic NR-BY551VS - User Manual

Order No. PHAT091001C3
(Revision : May. 2011)
Service Manual
Refrigerator
NR-BY551MS, NR-BY551SS
NR-BY551VS, NR-BY551XS
NR-BY601VS, NR-BY601XS
Product Colour
Silver (SL)
Stainless (ST)
Destination
Thailand, Indonesia
Malaysia, Singapore
Vietnam, PGF, RBD
GULF (General)
India, Philippines
© Panasonic Home Appliances (Thailand) Co., Ltd. 2009.
All rights reserved. Unauthorized copying and distribution
is a violation of law.
There are special components used in this equipment which are important for safety. These parts are marked by
in the Schematic Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that
these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do
not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
WARNING
The service information is designed for experienced repair technicians only and is not designed for use by the general
public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting
to service a product. Products powered by electricity should be serviced or repaired only by experienced professional
technicians. Any attempt to service or repair the product or products dealt within this service information by anyone
else could result in serious injury or death.
CFCs have been used in refrigerant as refrigerator and the insulation materials for many years. But it
is now known that these compounds which once seemed so ideal for use as cleaning agents and in
refrigeration systems, destroy the earth’s ozone layer as a result, an international body decided on a
total worldwide ban of harmful CFCs by the end of 1995.
NR-BY551MS, SS NR-BY551VS, XS NR-BY601VS, XS
MIN
MAX
MIN
MAX

Summary

Safety Cautions for Repairing

Warning Cautions

Critical warnings for safe refrigerator repair procedures.

General Cautions

Important cautions regarding parts, refrigerant, and potential hazards.

Self Protecting Function

IC Protection Mechanism

How the IC protects the unit from internal faults.

Compressor Locked Protection

Safeguards against compressor locking due to operational issues.

Power Supply Drop Protection

Protection measures against unstable voltage supply.

Self Diagnosing Function

Diagnosing Function Usage and Error Indicators

Guide to using the self-diagnosing feature and interpreting LED signals.

Temperature Control

9 Levels Temperature Adjustment

Inverter Control Display

Energy Saving Mode Operation

Quick Freezing Mode Operation

Refrigerator Instruction Guideline

Common Troubleshooting Steps

Initial checks for common operational problems before service.

Troubleshooting Guide

No Cooling - Compressor Not Operating

Step-by-step guide for diagnosing no cooling when the compressor is off.

Insufficient Cooling - Compressor Operating

Troubleshooting steps for cooling issues when the compressor is running.

Panasonic NR-BY551VS Specifications

General

Brand	Panasonic
Model	NR-BY551VS
Category	Refrigerator
Language	English