Recirculating pump not working after water heater replacement

Discussion in 'Water Heater Forum, Tanks' started by Mmonagan, Jan 13, 2013.

  1. Mmonagan

    Mmonagan New Member

    Messages:
    1
    Location:
    Culver City, CA
    I had my 40 gal hot water heater replaced and now the recirculating pump isn't working. The plumber feigns ignorance. My question(assuming its getting power): is there something that has to be done to the pump (priming?) to get it working again? The pump is a Grundfas.
  2. LLigetfa

    LLigetfa DIYer, not in the trades

    Messages:
    3,922
    Location:
    NW Ontario, Canada
    You may have to remove the heat trap on the hot outlet. It serves no purpose anyway if you use a recirc. My guess is the old tank didn't have heat traps.
  3. LLigetfa

    LLigetfa DIYer, not in the trades

    Messages:
    3,922
    Location:
    NW Ontario, Canada
    My other thought is perhaps some sediment got into the pump and it no longer turns.
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