Toshiba MCY-MHP0506HT-C User Manual

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FILE NO. A10-1607

Revision1: Jun, 2017

Revision2: Aug, 2017

SERVICE MANUAL

AIR-CONDITIONER (MULTI TYPE)

O

UTDOOR UNIT

Model name:

This service manual provides relevant explanations about new outdoor unit.

Please refer to the following service manuals for each indoor units.

MCY-MHP0506HT-C*

MCY-MHP0606HT-C*

MCY-MHP0506HT

MCY-MHP0606HT

MCY-MHP0406HT-E

MCY-MHP0506HT-E

Service Manual No.

<4-way Cassette Type>

(MMU-AP****H) A08-004

<2-way Cassette Type>

(MMU-AP****WH*) A10-007

<Slim Duct Type>

(MMD-AP024, A0274SPH*) A12-005

<Concealed Duct High Static Pressure Type>

(MMD-AP***6HP*) (Made in Thailand model) SVM-15032

<High-wall Type>

SVM-09059

(MMK-AP***3H*) (Made in Thailand model)

<Console Type>

(MML-AP****NH*) (Made in Thailand model) SVM-11036

<Ceiling Type>

(MMC-AP***7HP*) (Made in Thailand model) SVM-13085

<Other indoor units>

(MM*-AP*****H*) A10-033

Table of Contents

Questions and Answers:

R
Ryan MitchellAug 16, 2025
What to do if a check code is displayed on the Toshiba MCY-MHP0506HT-C remote controller?
- P
  Patrick MaloneAug 16, 2025
  If a check code appears on your Toshiba Air Conditioner's remote controller, it could be due to several reasons: * The outdoor unit power might be off: Ensure the outdoor unit is powered on. * Address setup errors: Redo the address setup, as there may be undefined or mismatched line addresses, or duplicated indoor addresses. * Communication issues: Check the communication connector between the indoor and outdoor units and verify SW30 bit 2 on the outdoor unit.
J
Jennifer FoleyAug 19, 2025
Why does my Toshiba Air Conditioner display a check code related to address setup?
- C
  chavezbrianAug 19, 2025
  If a check code is displayed on the Toshiba Air Conditioner remote controller, and it's related to address setup, you may need to set up the address again. This is especially important if only line addresses of the connected indoor units are undefined, the outdoor line address and the line addresses of all the indoor units do not match, or the indoor addresses are duplicated.
M
Marissa EdwardsAug 21, 2025
What to do if a check code is displayed on the Toshiba Air Conditioner due to Indoor / Outdoor communication circuit trouble?
- S
  smithlindaAug 22, 2025
  If a check code appears on your Toshiba Air Conditioner's remote controller and you suspect indoor/outdoor communication circuit trouble, check SW30 bit 2 of the outdoor unit. If there is no connection between multiple refrigerant lines, SW30 bit 2 should be on. Also, inspect the communication connector between the indoor and outdoor unit.
D
Donna EllisAug 25, 2025
What to do if a check code is displayed on the Toshiba MCY-MHP0506HT-C Air Conditioner due to transmission circuit trouble?
- K
  Kevin ClarkAug 26, 2025
  If a check code is displayed on the Toshiba Air Conditioner remote controller, and it's related to a transmission circuit trouble at the interface side, replace the interface P.C. board.
S
scott24Aug 28, 2025
What to do if Toshiba Air Conditioner displays a check code after address setup?
- L
  Leonard GomezAug 28, 2025
  If a check code appears on the remote controller of your Toshiba Air Conditioner after address setup, and communication from all indoor units is interrupted while a normal operation can be performed, inspect the indoor/outdoor communication line for disconnections. Also, check for any communication noise that might be affecting the system.
L
lauriehooperAug 31, 2025
Why does my Toshiba MCY-MHP0506HT-C display a check code when too many indoor units are connected?
- R
  Raymond DoughertyAug 31, 2025
  If a check code is displayed on the Toshiba Air Conditioner remote controller, it might be because the number or capacity of connected indoor units has been exceeded. Adjust the number or capacity of connected indoor units to resolve this issue.
C
christyburtonSep 3, 2025
What to do if Toshiba Air Conditioner displays a check code due to duplicated outdoor line addresses?
- S
  Sarah BerrySep 3, 2025
  If a check code is displayed on the Toshiba Air Conditioner remote controller due to duplication of outdoor line addresses or a line address setup error after connecting between U1/U2 and U3/U4 connectors, you should modify the line address setup of the outdoor unit between lines by setting up SW13 and SW14 on the interface P.C. board.
J
Jon ArroyoSep 6, 2025
What to do if Toshiba Air Conditioner displays a check code due to duplication of indoor units with priority?
- C
  Caleb RiveraSep 6, 2025
  If a check code appears on your Toshiba Air Conditioner's remote controller due to the duplication of indoor units with priority, set up priority for only one indoor unit to resolve the issue.
R
Richard PerezSep 9, 2025
What to do if Toshiba MCY-MHP0506HT-C Air Conditioner displays a check code because multiple indoor units are set up with priority?
- V
  Victoria BryantSep 9, 2025
  If the Toshiba Air Conditioner displays a check code because there are two or more indoor units set up with priority, identify the indoor units indicating “L05,” and set only one of them with priority.
M
mayjohnSep 12, 2025
What to do if Toshiba MCY-MHP0506HT-C displays a check code due to undefined indoor addresses?
- C
  Cynthia BrownSep 12, 2025
  If a check code appears on the remote controller of your Toshiba Air Conditioner and it's due to address setup errors with undefined indoor addresses, set up the addresses again and modify the setup.

Toshiba MCY-MHP0506HT-C Specifications

General

Brand	Toshiba
Model	MCY-MHP0506HT-C
Category	Air Conditioner
Language	English

Summary

Outdoor Unit

Product Summary

Outdoor Unit Specifications

Details on the specifications of the outdoor unit, including model names and capacities.

Wiring Diagram

Parts Rating

Outdoor Unit Parts Rating

Specifications and ratings for outdoor unit components like compressor, valves, and fan.

Parts Layout in Outdoor Unit

Visual identification of components within the outdoor unit assembly.

Applied Control for Outdoor Unit

Priority Operation Mode Setting

Configures system operation priority for cooling, heating, or specific indoor units.

Power Peak-Cut Control (Standard)

Implements standard power peak-cut control to limit outdoor unit peak capacity.

Night Operation (Sound Reduction) Control

Reduces operational noise at night or during other specific times.

Test Operation Procedures

Procedure and Summary of Test Operation

Outlines the step-by-step procedure for executing a test operation.

Check Items Before Test Operation

Lists essential checks before powering on and commencing test operations.

Address Setup

Step-by-step guide for setting unit addresses, essential for system operation.

Troubleshooting in Test Operation

Diagnoses issues encountered during test operation, including check codes.

Service Support Functions

Details various service support functions accessible via switches on the outdoor unit.

Troubleshooting

Troubleshooting Method

Explains how to identify and resolve issues using self-diagnosis features.

Check Codes and Locations

Lists check codes displayed on controllers and outdoor units with corresponding locations to check.

Diagnosis Procedures for Check Codes

Detailed diagnostic flowcharts for various check codes to pinpoint issues.

Outdoor Unit Parts Replacement

P.C. Board Exchange Procedures

Interface P.C. Board Replacement

Step-by-step guide for safely removing and installing the interface P.C. board.

IPDU P.C. Board Replacement

Step-by-step guide for safely removing and installing the IPDU P.C. board.

Noise Filter P.C. Board Replacement

Step-by-step guide for safely removing and installing the noise filter P.C. board.

Exploded Diagram and Parts List

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