Frigidaire LCRT2010ST service manual Condition, Check, Result, Cause, Remedy, 5-14

(TROUBLE 2) Oven does not operate at all, Display window does not display any figures, and no input is accepted.

CONDITION

CHECK

RESULT

CAUSE

REMEDY

1. Fuse blows.

Check continuity of monitor switch (with door closed).

Replace fuse

Continuity.

No continuity.

Malfunction of the monitor switch.

Replace fuse, primary, monitor, secondary switches, and RELAY(RY2) of P.C.B Assembly.

Check continuity	Continuity.
of primary
switch (with
door opened)	No continuity.

Check continuity	Continuity.
of secondary
switch (with
door opened).	No continuity.

Disconnect one	Normal.
side of the wire
lead connected
from transformer	Fuse blows again
to the high
voltage
capacitor and
operate the unit.

Shorted contact at the primary switch.

Malfunction of secondary switch.

Defective high voltage capacitor.

Defective high volt- age transformer.

Replace fuse, primary, monitor, secondary switches, and RELAY(RY2) of P.C.B Assembly.

Replace fuse, primary, monitor, secondary switches, and RELAY(RY2) of P.C.B Assembly.

Replace high voltage capacitor.

Replace high volt- age transformer.

NOTE : All these switches must be replaced at the same time. Refer to page 5-7, 5-8

2.Fuse does not blow.

Check continuity of thermostat.

No continuity.

Defective thermostat.

Replace thermostat.

	Continuity.
Check continuity	No continuity.	Defective power	Replace power
of power supply		supply cord.	supply cord.
cord.

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