Panasonic Air Conditioner Errors: Code-Based Troubleshooting and Repair Advice – Panasonic’s conditioning system has a lot of smart functionality. Some diagnostics systems are among the significant benefits that persuade customers to choose these air conditioners over others.
We’ll go into how characteristic codes are used to determine Panasonic air conditioner errors.
You will learn how, when a fault is found, the control system notifies the owners of a brewing or current failure from the article we discussed. Understand how a fault is detected and the error code is sent to the remote control or internal module’s monitor.
Our suggestions will assist you in keeping the device in tip-top shape.
What is an error code?
Panasonic air conditioners provide a comprehensive feature set as well as several automatic control systems. This can include fine air purification, atmospheric ionization, and the degradation of harmful microorganisms, among other things.
When the air conditioner has to be repaired or cleaned, the automation shuts it off. Panasonic air conditioners have an innovative self-diagnosis system in new versions. The control device identifies a fault based on the results and reports the trigger to the control panel.
All machinery service should be halted in the event of a severe breakdown. The error message will continue to flash during service if the malfunction has no effect on the system’s operation. If an air conditioner or split system has two or more breakdowns, the first is given top priority, followed by the others.
A functioning air conditioner in the presence of a blinking bug, on the other hand, is not a justification to keep the machine running. Ignoring the sensor signal would exacerbate the issue and, as a consequence, would necessitate more extensive repairs at a higher cost.
When a flickering signal appears, you must address the source of the malfunction as soon as possible, either calling the wizard to repair the problem or, if you have the requisite expertise and skills, resolving the problem yourself.
Under the cover that covers the air conditioning keys, there is also a Check key that allows you to scroll through all of the system’s errors using the Up and Down arrows. To reset critical errors, they must first be removed from the display, after which they can vanish on their own. After a power reset, errors are also reset.
Errors with the air conditioner’s remote control
The error codes created by the device can be read in a variety of ways depending on the air conditioner model. On the indoor unit, however, the timer indicator will still light. Let’s look at how to figure out what the error code is.
On the remote, there is a “check” button.
To read errors, press and hold the “test” button on the control panel for around 5 seconds. After that, the temperature will be replaced by the current error codes on the monitor.
We point the remote control at the air conditioner’s internal module and scroll through the error log with the up and down keys. The air conditioner module can make a sound when the desired error is reflected on the monitor. It’s necessary to go all the way through the magazine, starting with the first code and ending with the last.
On the remote control, there is no “check” button.
If the remote control does not have a “check” button, press and hold the up key for the timer for 5 seconds. The remote control then goes into error code mode.
After that, hold down the same button for a few seconds and click through the errors. The indoor device will also make a sound during the show. There may be several errors, so scroll through the entire error log.
The remote control would return to the usual temperature monitor mode after a minute in both cases.
On the control panel,
On newer air conditioner models, this is the standard method for locating errors. On the indoor unit, there is an indicator panel that displays the error code. The only thing the air conditioner’s owner has to do is look at this code and figure out what it means. In multi-split systems, all indoor units must be checked for errors.
Panasonic Air Conditioner Errors Code And Interpretation
Let’s take a look at what error codes Panasonic air conditioners have and how to decipher them.
H00 : There are no issues with the device’s service.
H11 – The control cards are malfunctioning or there is no contact between the external and internal modules.
If this error occurred shortly after the air conditioner was mounted, it indicates that there were errors in the main line. Maybe there’s a cliff somewhere. You should check all the connections appropriate for the boards for diagnostics; it’s likely that there’s a bad link somewhere down the line.
If the error appears after several years of air conditioner service, it’s time to replace the board. It’s crucial to figure out whether the internal or external device failed. The indoor unit fan can continue to run if an error occurs.
H12. The internal modules’ total power does not equal the external modules’ total power. This type of error only occurs in multi-splits. 1.5 minutes after turning on, the signal appears.
- There are three possibilities:
- Indoor unit cooling power was measured incorrectly;
- The number of internal modules has been wrongly chosen, and the external device is unable to cope;
On one of the blocks, error H11 appeared, and on the other, error H12 (the wrong number of internal modules).
H14. The issue with the air sensor is that it records room temperatures that are above + 46°C or below -56°C. This indicates a sensor short circuit or a break in the circuit.
H15.Compressor temperature sensor issues. The same issues as with the temperature sensor: either the circuit broke or a short circuit occurred at some point.
H16. Low current consumption by the external module is detected.
There are many explanations for a decrease in consumption:
- a lack of freon (low pressure);
- defect in the existing transformer (the board must be soldered or replaced);
- The power IPM module has failed.
H17 is the number 17 in the alphabet. Similar to H14, thus involving the external device – a failure of the temperature sensor on the compressor’s suction shaft. On the sensor, either an open circuit or a short circuit has occurred.
H19. The occurrence of an error means that the internal module motor is jammed: when the real speed of the module motor does not match the speed set by the processor.
Errors may occur for a variety of reasons, including:
- problems with the indoor unit’s motor directly;
- The engine wire connections on the indoor unit’s engine were loosened;
- The internal module board is having issues.
H21 is the code for the number 21. In the indoor machine, there were issues with the drain pan float. The presence of a signal means that the sensor is active.
Check the sensor logic and look at the resistance on the pump’s motor windings, which should be about 200 ohms. Drainage can also become clogged, necessitating flushing or flushing of the drainage.
H23. Issues with the base sensor No. 1 of the heat exchanger’s surface temperature in the indoor device. The processor senses an irregular heat exchanger temperature of more than +80oC or less than -40oC. You should search for an open circuit or a short circuit on the sensor.
(H24) Similar issues as H23 with the heat exchanger’s optional No. 2 surface temperature sensor in the indoor machine.
H25. The ionization device is malfunctioning. When the E-Ion is turned off, the port is turned on. It’s possible that the E-Ion board or the internal module board are malfunctioning.
H26. A useful hint: the air ionizer has failed for some reason.
H27. The air temperature sensor is malfunctioning. The processor keeps track of outdoor temperatures that are above +150°C and below -40°C. An open circuit or a short circuit on the sensor may be the source of the failure.
H28. Issues with the surface temperature sensor No. 1 on the outdoor unit’s heat exchanger. The processor sets the temperature on the heat exchanger’s surface to be above + 110o or below -60o.
A short circuit in the sensor or an open in the circuit is the source of the problem.
H30.Problems with the temperature sensor on the compressor’s discharge tubing. Temperature readings above + 200oC and below -16oC are reported by the processor. When the condensation temperature is 6 degrees higher than the discharge temperature, an open in the circuit of this temperature sensor is observed. An open circuit or a short circuit on the sensor may be the source of the problem.
H33 is the number 33. When a voltage mismatch occurs in the data transmission line between the internal and external modules, an interconnect error occurs. There are issues with the outside and/or indoor units’ power lines.
H34 is a hexadecimal number that A fault has occurred in the temperature sensor mounted in the power module’s radiator. Over + 80°C or below -43°C, the processor records the temperature of the outdoor unit’s heat exchanger surfaces. There was either a short circuit or an open in the circuit in the sensor.
H35. Issues with the drainage pump or a drainage blockage. The drainage line must be cleaned and blown out. Then inspect the sensor logic and resistance in the pump’s motor windings (should be about 200 ohms).
H36. In the heat mode, there were issues with the temperature sensor in the external module’s gas tube. Temperatures above + 149o or below -45o are recorded by the processor. Check the circuit or sensor for a short circuit.
H37.In the cold mode, there were issues with the temperature sensor in the liquid tube of the outdoor device.
On the sensor, there has been either an open circuit or a short circuit.
H38. Inconsistency in the brand codes of the indoor and outdoor units.
H39. In standby mode, the indoor device has frozen. Occurs as a result of an abnormally high evaporator temperature in the device. Except for the block where the evaporator is frozen, this indication occurs on all blocks at the same time. On the last block, the error code F17 appears.
The issue arises as a result of the following:
- The outdoor unit’s solenoid valve is malfunctioning;
- The power and freon wires are mixed up.
H41. Incorrect and freon-wired wiring.
Faulty fan engine, H 50. Alternatively, there may be issues with the internal module board.
H51. Nozzle is clogged.
H52. There has been a problem with the limiter switch. Alternatively, there may be issues with the internal module board.
H58 is an abbreviation for The Patrol Sensor block has been updated to correct the problem.
H64 is a 64-character number. The high pressure sensor in the outdoor unit is not working properly. When the compressor is turned off, the high pressure sensor stays open for one minute. The failure may be caused by a sensor failure, damage / wire breakage, or problems with the board’s connectors.
H97. The external unit’s engine is stuck: the real engine speed does not fit the one set by the processor.
The loss can be traced back to:
- harm to the external unit’s motor;
- The internal module board has been broken down;
- when there are issues with the wire connections (they need to measure the voltage).
H98. The indoor module’s defense against excessive pressure or overheating in heat mode has been effective. Protection is triggered when the temperature of the heat exchanger in the indoor module rises to + 52 ° C, and the compressor stops fully at + 65 ° C. As the temperature decreases, the compressor restarts.
The issue may arise as a result of:
- a heat exchanger that isn’t removing enough heat;
- contamination of the heat exchanger
- incorrect readings from the heat exchanger’s mounted sensor;
- During the start-up process, heat the indoor machine.
H99. The evaporator of the indoor machine freezes when it is turned on. If the temperature in the indoor device falls below + 8 ° C, the speed limit is enabled. If the temperature drops below 0 degrees Celsius, the compressor shuts down and restarts when the temperature increases. When the temperature reaches + 13oC, the restriction is lifted.
The issue may arise as a result of:
- leakage of refrigerant or inadequate refueling
- capillary tube clogged;
- In the refrigeration circuit, there is moisture.
F11 is a function that allows you to perform This error means that the 4-way valve responsible for cold/heat switching is malfunctioning. Defects in the mechanism or the electromagnetic valve coil may be the trigger.
F17. The indoor module is detected to be frozen in standby mode. The indicator is set off on the exact block where the freezing happens.
A failure of the solenoid valve (leakage) of the corresponding circuit of the outdoor device may be the trigger. An error sign can also be caused by incorrect data from the heat exchanger sensor of the indoor device.
If the error occurs right after the device is turned on for the first time, the air conditioning Freon and control wires were installed incorrectly.
F90 (Fast 90) When the compressor speed ceases synchronizing with the processor signal, an error occurs.
The signal will appear if the compressor windings split (each winding should have a resistance of about one Ohm under normal conditions); if the resistance of the windings differs; or if the inverter circuit of the outdoor unit board malfunctions.
Measure the resistance and voltage to see if there’s a problem.
F91 is a number that has been assigned to a The error means that the refrigeration circuit is not operating properly or that the low pressure safety has been activated in it
If any of the following conditions exist, there is a malfunction:
- there is no freon;
- The outdoor unit’s three-way valve is broken.
F93 A discrepancy between the real compressor output and the controller control signals is indicated by this signal. In other words, when its speed does not match the controller’s control signals. In this scenario, the mechanism would come to a halt.
F94Protection is enabled when the discharge pressure is too high. The function of the refrigeration circuit must be verified.
F95 (Fast 95) The external module has been shielded from high pressure when in cooling mode. A problem may arise in the refrigeration circuit or as a result of the outdoor unit’s heat exchanger overheating.
F96. The power module has overheated, and the compressor thermotable in the multisystems has opened.
The following are some possible causes of the error:
- pollution of the external module’s heat exchanger;
- The refrigeration circuit has been contaminated;
- defect in the control module
- Failure of the compressor.
F97. The compressor’s high discharge temperature is set, causing the compressor to overheat. After 20 minutes of uptime, the error may be reset. The repeated shutdown of the external module for no apparent cause is one of the symptoms of a mistake.
The following are possible causes of the problem:
- Recharging;
- Data error in the compressor’s discharge pipe sensor;
- In the compressor windings, there is an interturn circuit.
- Harm to the external module’s fan
98F The total current consumed defense has tripped. In the operating mode, an insufficiently high current consumption of the external module is observed.
The contamination of the refrigeration circuit or the heat exchanger of the outdoor device must be investigated as the source of the mistake.
A heavy subsidence of the voltage in the power supply at the time of turning on the air conditioner or during service may result in an error.
F99 is a fictional character. This is a warning for a DC safety malfunction. The error may be caused by a compressor jamming, a transistor module malfunction, or a fault in the current sensor on the outdoor module board.
The compressor windings’ resistance has dropped below average. The resistance in the compressor windings and the transistor module must be measured.
To figure out what this or that Panasonic air conditioner error means, you’ll need to get the service manual for that model from the internet and look at the error portion.
Requirements for Standard Care
The care procedures for this brand’s air conditioners must be defined in the instructions. This section of the manual should be reviewed thoroughly because adhering to these instructions would help to minimize the number of breakdowns.
Panasonic air conditioner failures can necessitate costly repairs or even the purchase of expensive parts to restore the device’s functionality. As a result, routine maintenance in accordance with the manufacturer’s specifications is particularly essential for technology.
Most maintenance procedures are simple and take little time, but some will involve disassembling the blocks, so it is best to seek the assistance of a wizard from a licensed service center.
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