HTP PHE130-119S Problem

Big Ed_4

Changed a blower fan and took care of a few extra issues . I cut out the bad ODS to get heat to the house.Reset the program . Now the hot water heater is blowing off on temperature , 161* top tank . There is a heat exchanger for heat . All zones off and still fires up . The only thing we came up with was the control and board .. The is solar connected , it seems to turn on but it is not adding anything to the tank .

I shut it down for the night .. Any info of this unit and problem ,I would appreciate . This should not have the chance of happening ...

Rich_49

What are some of the extra issues you took care of if they were in fact concerning the Versa Hydro ? Did you choose the right program when resetting the program ? Is it possible you mis programmed something in the 600 or 925 programming or did not understand their wording , it happens .

Maybe just as simple as a bad sensor or PRV .

Big Ed_4

I was on the phone with tech support and we went though the programs . On no call and showing 161* top tank and 140* bottom tank and burner was firing . The unit uses just the two thermistors .

mattmia2

Try putting a thermometer at the sensor, maybe a bad connection or bad thermistor.

My first thought is the solar is heating the tank by gravity flow but that doesn't explain why it would be firing.

Big Ed_4

It was a warm day , solar was running but not circulating ..

Rich_49

Most or many Tech support folks at HTP will have little or no experience with Versa Hydro . I have to ask if you find it amazing that a water heater would try to fire when the top tank temp is 161* , the unit requires a DHW mixing valve and may be an older unit looking to have top tank at 180* . How old is this unit and again , did the 600 and 925 programming get reset . Did you check High temp safety switch at the TOP side of the tank ? Was there no solar available to draw from and that's why the burner was firing ? Something is missing .

Big Ed_4

2020 it was installed by the previous owner who was in the solar industry . I was amazed it heat the home with hydro air without a complaint ..

This safety switch can you tell me more , I did not see any ,is it some where in the back ? (I hope not:)

"Temper block " was coming up when I first started it up . The homeowner said it happen before and flipping the switch removes it ..

Rich_49

It's the third sensor nobody told you about , of course it'd be nice if they knew .

page 51 here , https://htproducts.com/literature/lp-314.pdf

page 56 here , https://htproducts.com/literature/lp-314_0417.pdf


These units are really nice tech that unfortunately never sold well because too many think they know what they don't know . Personally for me they have been basically trouble free and really efficient . A shame they're gone , save it for the homeowner

Big Ed_4

Thank You for the info.

When were they discontinued ?