Mitsubishi Electric PKA-A12HA User Manual

Name: Mitsubishi Electric PKA-A12HA
Brand: Mitsubishi Electric
Rating: 4 (1 reviews)

36 pages

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SERVICE MANUAL

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

SPLIT-TYPE, AIR CONDITIONERS

NOTE:

• This manual describes

only service data of the

indoor units.

• RoHS compliant products

have <G> mark on the

spec name plate.

CONTENTS

1. REFERENCE MANUAL

...................................

2. SAFETY PRECAUTION

...................................

3. PART NAMES AND FUNCTIONS

...................

4. SPECIFICATIONS

............................................

5. NOISE CRITERION CURVES

..........................

6. OUTLINES AND DIMENSIONS

.......................

7. WIRING DIAGRAM

.........................................10

8. REFRIGERANT SYSTEM DIAGRAM

............

9. TROUBLESHOOTING

....................................

10. SPECIAL FUNCTION

.....................................

11. DISASSEMBLY PROCEDURE

.......................

Indoor unit

[Model names] [Service Ref.]

PARTS CATALOG (OCB456)

No. OCH456

March 2009

INDOOR UNIT

PKA-A12HA

PKA-A18HA

PKA-A12HAL

PKA-A18HAL

ON/OFF

TEMP.

COOL

DRY

AUTO

FAN

HEAT

3 3 2 2 3

WIRED REMOTE

CONTROLLER

WIRELESS REMOTE

CONTROLLER

Questions and Answers:

A
Amanda RichardsonJul 30, 2025
What to do if the trouble is not reoccurring and is logged in Mitsubishi Electric PKA-A12HA?
- B
  Beth WatsonJul 30, 2025
  If a logged trouble with your Mitsubishi Electric Air Conditioner is not reoccurring, it might be due to temporary defects such as protection devices in the refrigerant circuit including compressor, poor wiring connections or noise. Re-check the symptom, installation environment, refrigerant amount and weather conditions when the issue occurred, as well as wiring. After servicing, reset the error code logs and restart the unit. This indicates no abnormality in the electrical components, controller board, or remote controller.