View attachment 563896
Here's what Grainfather said:
Hi Steve,
Thank you very much for your email and sorry to hear of the issues that you are experiencing. Can you please try the following to see if this helps:
1. Fill the Grainfather with water and turn the pump on for 5 seconds and off for 5 seconds. Repeat 4-5 times.
2. Use a hose to blow water down the recirculation pipe. If there is an airlock, this should clear the pipe.
3. Unscrew the safety valve at the top of the recirculation pipe carefully and remove the ball and spring, check the spring for any debris. If the spring is clear of debris, reattach the valve without the spring and attempt to run water through the system without the spring in place, does the pump work?
4 If none of the above works please empty your Grainfather and dismantle the pump and check for any loose components as well as checking that the impeller o-ring is in place, then reassemble the pump. This simply requires undoing a few screws and will not have an effect on your warranty. I have attached an image to this email to show the dismantled pump.
It would also be helpful if you could answer these questions:
• Serial Number
• What was the wort temperature when you turned on the pump?
• How long has it been running fine for before failing (i.e. xx minutes)?
• Could you please take some photos of the pump’s rotor in different views so that we can see each side of the rotor?
I look forward to hearing from you.
Kind Regards
They sent some pictures, but it wasn't clear what I was supposed to be looking for: a damaged O-ring? scorching? My pump has a green housing.