J
James BerrySep 4, 2025
What does THHS sensor contact failure mean for Mitsubishi Electric CAHV-P500YA-HPB Heat Pump?
- KKatherine LewisSep 5, 2025
THHS sensor contact failure.
To Next PageTo Next PageWhat does THHS sensor contact failure mean for Mitsubishi Electric CAHV-P500YA-HPB Heat Pump?
THHS sensor contact failure.
Why is my Mitsubishi Electric Heat Pump showing excessive oil flow?
The outside temperature was above the upper limit of the operating range, resulting in excessive oil flow.
Why does my Mitsubishi Electric CAHV-P500YA-HPB Heat Pump show an error with thermistor wiring?
A possible reason for the error is broken or shorted thermistor wiring. Inspect the wiring for damage.
Why is my Mitsubishi Electric CAHV-P500YA-HPB Heat Pump showing incorrect power supply voltage?
The problem may be caused by incorrect power supply voltage.
What does A471 error mean on Mitsubishi Electric CAHV-P500YA-HPB Heat Pump?
This error indicates there is an open phase, which can lead to circuit board fault.
What causes incorrect dip switch settings on Mitsubishi Electric Heat Pump PCB?
Dip switches on the PCB were set incorrectly during maintenance.
What does AC61 error mean on Mitsubishi Electric CAHV-P500YA-HPB?
This error may indicate no water, an abrupt change in water temperature (5K/min. or greater), or pump failure.
Why is my Mitsubishi Electric CAHV-P500YA-HPB frosting up?
If the outside temperature was below the operating range, sudden frosting or heavy snow clogged up the air-refrigerant heat exchanger.
What causes short cycling and voltage drop in Mitsubishi Electric CAHV-P500YA-HPB Heat Pump?
The issue may be caused by short-cycling of air (reduced air flow), a clogged heatsink cooling air passage or a power supply voltage drop (Inter-phase voltage is 180 V or below.), which can lead to THHS sensor fault.
Why is my Mitsubishi Electric Heat Pump showing a voltage drop and clogged heatsink?
The problem may be caused by power supply voltage drop (Inter-phase voltage is 180 V or below.) or clogged heatsink cooling air passage, which can lead to fan motor fault.
General| Model | CAHV-P500YA-HPB |
|---|---|
| Category | Heat Pump |
| Power Source | Electric |
| Refrigerant | R410A |
| Power Supply | 380-415V, 50Hz, 3-Phase |
Specific warnings and precautions for general unit operation and installation.
Explains the meaning of WARNING, CAUTION, and IMPORTANT symbols used in the manual.
Step-by-step guide for the initial setup and startup procedure of the unit.
Instructions for starting and stopping the unit for routine daily use.
Guide to identifying and resolving issues based on error codes displayed by the unit.
Details on contacting manufacturer, installer, and maintenance providers.
Information regarding refrigerant type, charging, and handling procedures.
Schedule and procedures for regular maintenance inspections by a service provider.
Outlines the terms and duration of the product warranty.
Lists conditions and damages not covered by the product warranty.
