single handle, shower, no hot

Discussion in 'Shower & Bathtub Forum & Blog' started by mandc421, May 12, 2014.

  1. mandc421

    mandc421 New Member

    10 year old single handle, twist only, in a small basement shower. i removed the cartridge and cold water shot out, plenty of pressure. zero hot water is coming out. this started probably with in the last 6 months. unknown make and model. no visible sign of mineral build up, no leaking. i'm thinking the balancing valve has failed and whole unit needs to be replaced.

    your opinion please.
  2. hj

    hj Moderator & Master Plumber Staff Member

    Cave Creek, Arizona
    You could have something like a Delta Scald Guard with a separate balancer. If so, there will be a "nut" on the body, usually to the right of the handle, to replace it. You do not replace the valve when a balancing spool gets stuck.
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