To Next PageTo Next PageWhy does my Mitsubishi Electric PUHZ-P250YHA3R3 remote controller display 'PLEASE WAIT'?
After the power is turned on, the Mitsubishi Electric Air Conditioner displays “PLEASE WAIT” for 2 minutes during system startup. This is normal. Wait until “PLEASE WAIT” disappears before using the remote controller.
What to do if my Mitsubishi Electric PUHZ-P250YHA3R3 Air Conditioner shows error code after startup?
When the Mitsubishi Electric Air Conditioner displays error code after startup, it could be because the outdoor unit’s protection device connector is open. Check the outdoor unit’s protection device connector.
What to do if Mitsubishi Electric PUHZ-P250YHA3R3 displays error code after startup?
If your Mitsubishi Electric Air Conditioner displays error code after startup, there might be an open connection in the remote controller transmission wire. Check for an open connection in the remote controller transmission wire.
General| Brand | Mitsubishi Electric |
|---|---|
| Model | PUHZ-P250YHA3R3 |
| Category | Air Conditioner |
| Language | English |
General safety precautions for repair service and during operation.
Specific safety guidelines for R410A refrigerant use.
Description of the pre-charged refrigerant system for easier installation.
Refrigerant charge amounts based on piping length.
Technical data for the compressor.
Graphical noise level data.
Operational data for different matching conditions and modes.
Recommended clearances around the unit for installation and operation.
Required space for maintenance access.
Specifications for unit mounting bolts.
Directions for piping and wiring connections.
Diagrams of knockout hole locations.
DIP switch settings for model selection.
Power wiring specs for the outdoor unit.
Wiring configurations for separate power supplies.
Specifications for the connecting cable.
Guidelines for M-NET communication wiring.
Procedure for recovering refrigerant from the system.
Instructions for performing a test run operation.
Overview of troubleshooting based on error codes.
Pre-test run checks and important points.
Procedures for initiating and interpreting self-diagnosis.
Detailed table linking error codes to causes and actions.
Diagnosing issues based on observed symptoms.
How to set unit functions using the remote controller.
Procedure for wired remote controller function selection.
Procedure for wireless remote controller function selection.
Detailed options for remote controller function selection.
Steps to monitor operation data via remote controller.
List of request codes and their data.
Detailed explanations for specific request codes.
Procedures for activating and using maintenance mode.
Guide to checking operation conditions and diagnosing performance.
Steps to remove service and top panels.
Steps to remove the electrical parts box.
Steps to remove the compressor.
Procedure to remove the accumulator.
