Panasonic NA140V24 Error code H 43. What's wrong & what will the cost be approx?

Your error 43 refers to the fact that the fax you are calling does not answer. Talk to them and ask if their fax is set to "Auto Receive". its probably not.

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience. If blinks continue without any pause, the main board is faulty.
Nobody can predict about the repair charge, as it will depend on the cost of damaged component/s + Service charges. OK?

Windows has stopped this device because it has reported problems (Code 43).
Code 43 can be summarized in two words: driver problem.
I can't help you any more without knowing which Windows version you are using, but the Panasonic website is
http://panasonic.net/pcc/support/bfax/

The error F21 is a long drain error and usually the drain pump is not working or the filter is clogged. Remove the lower kick plate and clean the filter. Post back your results.

This displays and error and it can be possible that the inlet flow is low, the inlet filter is clogged or the drain is faulty all of which can reduce the fill/drain timing and so causes an error..
Please remove and clean the filters and check the inlet flow pressure..

Have you checked the kitchen sink drain and air gap if one is installed in your kitchen. If using the garbage disposal unit in kitchen then make sure it is clear.

provide model number of dishwasher for further diagnosis.

The machine, based on the error code, is made by Frigidaire for Kenmore. Error code E20 pertains to a slow or no drain problem which can be due to a clogged/kinked drain hose, blocked drain filter/coin trap, or a broken drain pump. The link below provides the detailed troubleshooting procedure of this error code.

Error Code E20 on Frigidaire and Frigidaire-made (including Kenmore) Front Load Washing Machines

Error Code E20 on Frigidaire and Frigidaire-made (including Kenmore) Front Load Washing Machines

IT COULD BE YOUR DRAIN FILTER CLOGGED UP, OR YOUR DRAIN LINE.. TO GET TO THE FILTER YOU WILL NEED TO TAKE THREE SCREWS OUT OF THE BOTTOM OF THE WASHER THEN SLID THE PANEL OFF, ( YOU WILL NEED SOMETHING TO CATCH THE WATER WHEN YOU REMOVE THE FILTER,, EVEN THOUGH IT LOOKS LIKE THERE IS NO WATER IN IT ,YOU WILL STILL HAVE SOME COME OUT) REMOVE THE FILTER AND CHECK FOR ANY BLOCKAGE, WITH THE FILTER OFF POUR ALITTLE WATER INTO THE DRUM AND SEE IF IT DRAINS OUT FAST.. IF THE DRAIN FILTER IS NOT BLOCKED AND THE WATER RUNS OUT GOOD THE PROBLEM MIGHT BE IN YOUR PRESSURE SWITCH, THIS IS NOT A PART THAT CAN BE WORKED ON JUST REPLACED

http://www.lg.com/au/support/product/support-product-profile.jsp?customerModelCode=WD-1412RD&matchedModelCode=NOT_MATCHED&searchEngineModelCode=WD-1412RD&initialTab=documents&targetPage=support-product-profile#
Owners manual above. LG washing machine error code – OEThe LG error code OE simply means “the pump is blocked”. Presumably the water isn’t being emptied properly. As with all error codes it is possible that there is a cause other than the exact description in the error code explanation but basically this error means as far as the washing machine is concerned it thinks the water isn’t pumping out. A pump, or filter blockage is the most common cause but it could be caused by other faults such as a faulty pump, or even a blockage in the drain hose or somewhere else in the system etc.

• Washing machine won’t empty water
• Pump has no blockages, filter is clear and it runs but it still won’t drain water
• Appliance Error codes. General information

you have manuel ?