Click here to Find a Contractor in your area.
In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Need to contact us? Visit https://heatinghelp.com/contact-us/.

Laars endurance EBP

Paul SPaul S Member Posts: 1,220
Having a slight problem with this type of boiler.....customer has heat and hot water now....but there are intermitting problems with heat shutting off....display says F5 tank sensor error.....THE PAPER WORK SAYS TO CHECK SENSOR @ 77F IT WILL READ 10,000 OHMS.....THE BOILER IS AT 170F AND IM READING OVER 1.4 MILLION OHMS....do i have to drain down boiler and take sensor out and get sensor to 77f....or is there a chart with ohm readings at different temps???.....has anyone experienced these types of problems with these boilers?...

thank you PAUL S
ASM Mechanical Company
Located in Staten Island NY
Servicing all 5 boroughs of NYC.
347-692-4777
[email protected]
ASMHVACNYC.COM
https://heatinghelp.com/find-a-contractor/detail/asm-mechanical-company

Comments

  • pipekingpipeking Member Posts: 252
    can u

    post a pic of the sensor where it goes into the tank? i wouldn't think u have to drain the boiler to take it out.
  • Paul SPaul S Member Posts: 1,220
    pipe king

    Pic of sensor
    ASM Mechanical Company
    Located in Staten Island NY
    Servicing all 5 boroughs of NYC.
    347-692-4777
    [email protected]
    ASMHVACNYC.COM
    https://heatinghelp.com/find-a-contractor/detail/asm-mechanical-company
  • TomTom Member Posts: 455
    Ive done this

    wrong a couple of times, if what I am seeing in the picture is the sensor in the lower tank than you dont have to drain it but you will get water. I did this once and I assumed if I shut off the supply and return on the domestic side I could swap it quick holding a bucket under it. So I prep'd the new sensor and had it ready to go, unscrewed the bad sensor and then took a 180 degree 1/4" stream of water to the crotch!! Got a little hot on my hands and the boys! Didn't get at the time shutting the domestic valves did nothing for me. If you can Isolate the expansion and go quick you may not need to drain the tank. if the boiler has been out a couple of days it wont be that hot
    Tom
    Montpelier Vt
This discussion has been closed.

Welcome

It looks like you're new here. If you want to get involved, click one of these buttons!