Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

95M 200 Boiler Code

Kaiswash
Kaiswash Member Posts: 1
I have this boiler Olsen Quantum 95M 200 - can someone tell me what the code "A" is?

Comments

  • Have you looked on line for a manual?—NBC
    Kaiswash
  • Ironman
    Ironman Member Posts: 7,350
    "A" is a self check code when the control is powered up.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
    Kaiswash
  • Kaiswash
    Kaiswash Member Posts: 1
    ok thank you!
  • Kaiswash
    Kaiswash Member Posts: 1
    Yes, I pulled one off and there was no "A" in the troubleshooting codes? But I got the meaning for the "A" code...thanks
  • Kaiswash
    Kaiswash Member Posts: 1
    Phoned a second plumbing company to help me, the code on the boiler read 9 b 26 - the aquastat, LCW and 3.5 was checked and still the boiler would not fire up.
  • Ironman
    Ironman Member Posts: 7,350
    The manual says it's an external limit code.

    Do you have good flow through the boiler? Not air bound? Circulator i working?
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
  • Kaiswash
    Kaiswash Member Posts: 1
    yes circulation is good, I've had my boiler for years. I woke up this morning and it was off, so turned the power off and then reset it. however, prior to this the PSI was at zero, so I filled it to between 15-20. The code 9 b 26 appeared then I repeated to turn off the boiler and then reset. It started to go, temp was increasing ...I last checked it was at 104...then I came back downstairs and it was off again and this time it won't start up. Its going to be -52 tonight so I'm in a bit of a panic mode
  • Ironman
    Ironman Member Posts: 7,350
    Try removing the LWCO probe and cleaning it. You'll have to isolate and partially drain the boiler. Make sure all of the air is purged when it's refilled.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.