Back Flowing a Panasonic Hot Water Heater

[Chao Lao Beach]

You know the little ones on the wall, flow just dropped off to a trickle.

The little filter I clean, it is ok, when I take out the filter and turn on the water it blast hard, when I take off the exit hose it is a trickle, indicating there is a blockage inside the unit somewhere.

Any tricks to clean it out.

It is in a rental this one and the land lord wont replace anything of course, gezzzz, he wont even kill the termites eating his house !!!!

Can I just do the flow in reverse and try to wash out what ever is blocking it. I am worried of maybe a pressure switch or what ever in the unit I will break.

Unit is believed to be 8 yo

Any thoughts?

[stoneyboy]

Probably a build up of scale,pretty much what occurs inside a kettle especially in areas with hard water.

[Chao Lao Beach]

Thanks Stoneboy, any suggestions how to dissolve it with it on the wall, well give it a go any way?

[GiantFan]

I use vinegar on my chrome taps and this works OK. But this is external. Not sure how to get it inside your heater and let it do it's work.

[Gonsalviz]

Have to remove it from the wall, turn it upside down and fill it up. Probably take a few hours.

[phoneguy702]

Vinegar would be a start or if you can find a Calcium or lime remover in HomePro or local store. In the states we use a product called Bartenders Friend or CLR (calcium/lime/rust).