Thermador PRG30, PRG48, PRG36, PDR30 Thermador, S, SM, AND SMW Oven Error Code Messages…continued

Thermador®

S, SM, AND SMW Oven Error Code Messages…continued

Error Code
Displayed	Probable Cause	Example	Corrective Action
F-	Communication error	Control head	Check all connections between both power/relay
	detected by main		boards. Check all power connections between the
	power/relay board.		power/relay board and the control head. Check all
			communication connections between the power/relay
			board and the control head. See note 1.
Fr	(1) Invalid door latch switch	Defective or jammed	Make sure the lower latch switches are operating
	status for lower oven	lower oven latch	properly. Replace the lower latch if necessary.
		switches
	(2) Communication Error at	Check Control Head	Check all connections between both power/relay
			boards. Check all power connections between the
	display head.		power/relay board and the control head. Check all
			communication connections between the power/relay
			board and the control head. See note 1.
	(3) Element Supervisor	Intermittent lower	Replace lower oven temperature sensor. If Control still
	Disable Lower Oven	sensor or 2nd	display Fr, replace 2nd power/relay board. If Fr is still
		power/relay board	displayed, replace the main power/relay board.

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