Thermador Dishwasher Won't Heat Water
Dishwasher Won't Heat Water is usually one of a small number of specific, repairable causes — here's what to check and when it's worth calling a professional.
Common Causes
Surface-run supply in a house with no wall voids
Power and gas in these kitchens are often routed around rather than through, and a long or shared run shows up as an element that heats slowly.
A failed bake or broil element
The most common cause of a full loss of heat in an electric oven.
A drifted temperature sensor
Electronic sensors drift out of spec gradually, so the oven can run well off-target without any error showing.
Local conditions that matter here
In an Eichler a new water line cannot go under the floor, because there is no floor to go under — the slab carries the radiant heating loop, and cutting it turns a kitchen job into a heating job. Lines here run overhead or around the perimeter, which is why the same repair takes longer on one street than on the next.
What You Can Check Yourself
Parts That Most Likely Need Replacing
Based on symptoms like this, these are the components our technicians check first. The exact part depends on your model and what we find during diagnosis.
In and around Palo Alto
Palo Alto — More than 2,700 Eichlers here alongside the pre-war stock of Professorville and Old Palo Alto, so the same repair is a slab job on one street and a conventional one on the next. We also cover East Palo Alto, Ladera, Los Altos across Silicon Valley.
ZIP codes we cover in Palo Alto: 94301, 94302, 94303, 94304, 94306, 94309
Most cases like this are fine to schedule within a day or two, though it's worth having looked at before it gets worse. If you're seeing a code on the display alongside this issue, our Thermador error code guide can help narrow down the cause before we arrive. Either way, our repair service covers same-day diagnosis and a flat-rate quote before any work begins.
Common Questions About Dishwasher Won't Heat Water
Can I keep using my Thermador appliance while this happens?
Will dishwasher won't heat water go away on its own?
How much does this repair typically cost?
How long does a typical repair visit take?
Do you offer a warranty on the repair?
Do you service Thermador appliances in my area?
Still having this issue?
Same-day diagnosis, genuine OEM-compatible parts, warranty of up to 1 year.
*SubZero Repair San Mateo is an independent repair company and is not affiliated in any way with Sub-Zero, Inc., Wolf Appliance, Inc., or any of their distributors. We are not a factory service provider and specialize exclusively in out-of-warranty appliance repairs.