What does it mean when my Daikin Heating System shows error codes U4 or U5?
If your Daikin Heating System displays error codes U4 or U5, and restarts after a few minutes, it's likely due to communication interruption caused by electrical noises from other equipment. Try to identify and remove the sources of these electrical noises.
Why is COOL/HEAT selection disabled on my Daikin system?
If COOL/HEAT selection is disabled on your Daikin Heating System, the remote controller may be displaying 'CENTRAL CONTROL'. If so, use a remote controller with the option to select cooling operation. If you have a COOL/HEAT selection remote controller, use it to select cool or heat.
What does AA-03 error mean on my Daikin VRV EMERION REYQ240AATJA Heating System?
To address the AA-03 error (Gas furnace abnormality) on the remote controller of your Daikin Heating System, try executing combustion heating operation once or reset the power source.
Why is my Daikin Heating System not cooling or heating air well?
If your Daikin Heating System isn't cooling or heating well, several factors could be the cause. Check for blocked air inlets or outlets on both the indoor and outdoor units and remove any obstructions. Ensure the air filters are clean. If the outdoor unit is enclosed, remove the enclosure. Verify that the set temperature and airflow rate are appropriately adjusted. Also, make sure windows and doors are tightly shut, and if cooling, use curtains or shades to block direct sunlight. The model must be selected to match the air conditioning load. If you're using the drying operation, switch to cooling for temperature reduction.
How to fix a Daikin Heating System that does not start?
If your Daikin Heating System isn't starting, check the following: First, examine the fuses and replace any that have blown after turning off the power supply. Next, check the breakers; if any are in the OFF position, turn the power supply ON. If any breaker is tripped, leave the power supply OFF. Ensure there isn't a power failure; if there was, restart the system after the power is restored. Finally, turn off the power supply and verify that all connectors are securely plugged in.
What to do if Daikin Heating System starts then stops immediately?
If your Daikin Heating System starts and then stops immediately, it might be due to a blocked air inlet or outlet on either the indoor or outdoor unit; remove any obstacles. Another cause might be clogged air filters, so clean the air filters.
Why does my Daikin VRV EMERION REYQ240AATJA Heating System emit odors?
If odors are coming from your Daikin Heating System during operation, the inside of the indoor unit should be cleaned.
Why is my Daikin VRV EMERION REYQ240AATJA Heating System only doing fan operation?
If your Daikin Heating System is only operating the fan but not cooling or heating, the system may be in preparation mode. Wait for approximately 10 minutes.
Why doesn't my Daikin gas furnace start?
The gas furnace may not start if the compressor is operating, under stop-control, or immediately after defrost IN or defrost OUT. Wait until the operation becomes stable.
Why does my Daikin VRV EMERION REYQ240AATJA stop right after I turn it on?
If your Daikin Heating System stops immediately after turning it on, the system might be in preparation mode. Wait approximately one minute.
General| Brand | Daikin |
|---|---|
| Model | VRV EMERION REYQ240AATJA |
| Category | Heating System |
| Language | English |
Provides essential safety information for technicians before conducting repair work.
Provides detailed technical specifications for various REYQ models.
Illustrates refrigerant piping diagrams for outdoor units and branch selector units.
Explains refrigerant flow in cooling, heating, and simultaneous operations.
Explains high pressure, low pressure, discharge pipe, and inverter protection controls.
Details field settings for indoor units using remote controllers and various modes.
Explains procedures for setting outdoor units via DIP switches or PC configurator.
Provides troubleshooting steps based on observed system symptoms.
Explains how to check and interpret error codes displayed on the remote controller.
Lists error codes, their descriptions, and corresponding troubleshooting steps.
To Next Page