- Year Repaired: 2021 – Present
- Symptoms: Rattling in pump and pipes throughout house
- Cause: Failed impeller in pump
- Outcome: Replaced with new pump and rewired
- Material Cost: $600
- Time: 2 hours
At first it was thought the rattling was from air in the radiators but after bleeding the lines the rattle was still there. An HVAC technician on site mentioned the impeller was broken and to replace the whole pump. I am not sure if the impeller alone can be changed, but that might have saved a large amount of money. The pump was an identical replacement purchased from London Pump Supply Ltd and had three speed modes to adjust for home efficiency.