Error code reference

Thermador Hood Error Code Three speed LEDs blinking

Heat sensor protection fault: the heat sensor is damaged and not functioning, requiring input board replacement.

SourceThermador Professional Wall Hoods - Service Manual (PH30ZS-PH54ZS)p. 7

Diagnostic procedure

The full Three speed LEDs blinking procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Replace the entire input board (heat sensor is integrated and not field replaceable).

SourceThermador Professional Wall Hoods - Service Manual (PH30ZS-PH54ZS)p. 7

Unlock with pass

More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

Unlock Three speed LEDs blinking procedure $9.95

Or subscribe: $29/month for all codes plus Max diagnostics, with 70 Max messages a day. Plus applicable tax.

Where this code is documented

1 manual in the MyPros+ library documents this code for Thermador hood.

Models covered by the manuals that document this code

75,000+ service documents · 20,000+ error codes · 100+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass · Plus applicable tax