B

Error

Cause

 

Corrective Action

 

 

 

 

F114

Runaway lower temperature

1.

Check P24 connector on the Power Board.

 

(>950°F)

2.

Unplug the sensor connector and check lower sensor resistance

 

a) Intermittent or bad

 

(approximately 1080 ohms at room temperature with connector

 

temperature sensor.

 

removed).

 

b) Heating element relay stuck

3.

If sensor is OK, replace Power Board.

 

on.

4.

Check wiring to heating element. If OK, replace Power Board.

 

 

 

 

F121

Stuck keyboard key.

1.

Check all connections between the display head (P5) and the

 

Bad display head or bad

 

keyboard (J1).

 

2.

Make sure that there are no objects in close proximity to the front

 

keyboard.

 

and back sides of the keypads.

 

 

3.

Replace Display Board or keyboard or both.

 

 

 

 

F123

Keyboard disconnected

1.

Check all connections between keyboard (J1) and Display Board

 

Bad connection between

 

(P5).

 

2.

If OK, replace keyboard or Display Board or both.

 

keyboard and Display Board.

 

 

 

 

 

 

35

Page 51
Image 51
Thermador PDR30, PRG48, PRG30, PRG36, PDR36, PDR48 manual F114, F121, F123

PDR48, PDR36, PDR30, PRG36, PRG30 specifications

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