What to do if oil temperature sensor Th, Toil1 and Toil2 failure in Haier Heat Pump?
If the oil temperature sensors Th, Toil1 and Toil2 fail in your Haier Heat Pump, the solution is to have them correctly replaced by after-sales personnel on site.
How to fix communication failure between indoor and outdoor unit of Haier MRV 5-RC AS302MNERA Heat Pump?
If there's a communication failure between the indoor and outdoor units of your Haier Heat Pump, the solution is to have after-sales personnel on site correctly replace it.
What to do if ambient temperature sensor Tao failure in Haier MRV 5-RC AS302MNERA Heat Pump?
If the ambient temperature sensor Tao fails in your Haier Heat Pump, the solution is to have it correctly replaced by after-sales personnel on site.
What to do if outdoor unit compressor discharging temperature (Td1, Td2) too low failure in Haier MRV 5-RC AS302MNERA Heat Pump?
If the outdoor unit compressor discharging temperature (Td1, Td2) is too low in your Haier Heat Pump, the suggested solution is to have the discharging temperature sensor replaced by after-sales personnel on site.
What to do if outdoor compressor oil temperature (Toil1, Toil2) too low failure in Haier MRV 5-RC AS302MNERA Heat Pump?
If the outdoor compressor oil temperature (Toil1, Toil2) is too low in your Haier Heat Pump, the solution is to have the oil temperature sensor replaced by after-sales personnel on site.
How to fix high pressure switch HPS1 and HPS2 failure in Haier MRV 5-RC AS302MNERA?
If there's a failure of the high pressure switch HPS1 and HPS2 in your Haier Heat Pump, the solution is to have it correctly replaced by after-sales personnel on site.
What to do if low pressure sensor Ps failure in Haier Heat Pump?
If the low pressure sensor Ps fails in your Haier Heat Pump, have it correctly replaced by after-sales personnel on site.
What to do if high pressure sensor Pd failure in Haier MRV 5-RC AS302MNERA Heat Pump?
If the high pressure sensor Pd fails in your Haier Heat Pump, have it correctly replaced by after-sales personnel on site.
How to resolve compressor out of control in Haier MRV 5-RC AS302MNERA?
If the compressor is out of control in your Haier Heat Pump, the suggested solution is to replace the variable frequency control board.
What to do for fan motor module hardware over current in Haier Heat Pump?
If the fan motor module in your Haier Heat Pump experiences a hardware over current issue, the solution is to replace the fan motor.
Detailed technical specifications for various outdoor unit models.
Illustrates the refrigerant piping system for outdoor units.
Shows the electrical wiring connections for the main board and outdoor units.
Covers safety precautions, instructions, and procedures for installing the outdoor unit.
Crucial safety guidelines and precautions for installation to prevent accidents.
Provides specific checks and guidance for installation, including unit combination.
Covers refrigerant pipe connection, material selection, and anti-fouling measures.
Details methods for connecting refrigerant pipes, including torque specifications.
Explains electrical construction standards, wiring, grounding, and circuit breaker requirements.
Details valve box dimensions and lifting requirements.
Step-by-step guide for installing the valve box and its components.
Instructions for thermal insulation and connecting refrigerant pipes.
Lists key specifications for the VP4-450B valve box model.
Illustrates piping configurations for different operating modes.
Shows electrical wiring connections for the valve box PCB.
Covers safety, pre-installation, valve box installation, and refrigerant piping.
Specifies site selection conditions and preparation steps before installation.
Provides a visual guide to the outdoor unit PCB layout and dip switch functions.
Shows the valve box PCB layout and dip switch settings for address configuration.
Explains the various control functions for compressors, fans, and valves.
Details compressor cycle start, number changes, start delay, and protection controls.
Lists and explains various failure codes for indoor and outdoor units.
Provides failure codes and descriptions for outdoor unit issues.
Provides systematic troubleshooting steps for various failure codes.
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