R8222u 1006 i need to know what it does my pilot wont stay lite on a weil mclain boiler

Hello Lauren,

You would actually have to have a SCHEMATIC DRAWING
and a volt meter to quickly determine where the problem lies...

Just a cursory check of YOUR 68 series boiler shows AC (line current) devices (hot surface igniters, etc.)... So the very first place I would look would be the power transformer... typically inside the bonnet (also check those same panels to see if your SCHEMATIC DRAWINGS are posted there...

ELSE you are going to need your original owners information...
Wiring diagram, Page 15 (see bottom).

Hope this helps.

https://www.bing.com/search?q=mclain+68+boiler+parts&form=EDGNTC&qs=PF&cvid=85e7095f0805465bb0c5fd028114f3a9&pq=mclain+68+boiler+parts&PC=DCTE

Weil McLain 68 Manual

Is it a newer gas furnace, does the red lite pulse a number of times, then pulse the same number of times again?

Joanne If there is a standing pilot on the boiler. Put the gas valve to the pilot setting and push in on the valve while holding a long match or BBQ lighter @ the pilot assembly that is behind the small access port at the top of the gas train assembly. Dont hold the pilot knob doun without having a flane @ the gas outlet of the pilot assembly or gas will build up and could blow out of the port and hold the gas valve in for about a minute or two and let it go it should stay light when you let it go .If it does not sta lit and it IS a standing pilot there- is a thermo-coupling that may be bad If the pilot does not stay lit.
If there is an electronic ignition rather than a standing pilot then you do not need to light it will light itself if the electronic ignition is bad or if the flame sensor is dirty. If you remove the pilot assembly from the gas train and clean the flame sensor rod with a piece of .0000 steel wool it could help. If not you may want to call a licensed pipe-pitter ( OR plumber depending where you live and the local codes).
If you don't thing you could do it yourself then call a licensed pipi-fitter or plumber. (Gas only has to leak once for there to be a problem so please do call someone licensed if you don't think you could do it your self.), http://www.weil-mclain.com/en/weil-mclain/products-services/
Here is a link to the manufacturer you should be ale to fing your equipment and the install instructions, if you look around .You can download a PDF and print it
Good luck and stay warm

This link may be helpful.
https://www.google.com/url?sa=t&source=web&rct=j&ei=jGWnVJOzNYGAgwTg1YGABw&url=http://www.youtube.com/watch%3Fv%3DQaM_3zJ3Qz8&ved=0CBwQtwIwAA&usg=AFQjCNHXBQGe1PCnkjrIg-dh5lS8m_dBAQ&sig2=KmfqgOrua5TNOVaAY16_ng
Bob

When is the last time you had it serviced By a Tech?

Most likely cracked core.Has low water cut off alarm and auto make up feed been on?Have you been manually adding water?

Not good at all. Check for a fill level probe/float/sensor that may be acting up causing the unit to over fill, or you may be looking at buying a new boiler.

did you check power to the gas valve? Pilot lit? Or electronic pilot on? Need more info on boiler.

http://www.weil-mclain.com/en/multimedia-library/pdf/weil-mclain-pdf/burner-specifications/boiler-model-80-series/cordonpiatt_wr_80.pdf

You need to replace the Thermocouple. (pilot safety device) It would be best to call a Technician about this.