TurboChef Technologies Residential Single and Double Wall Oven - Manual (Page 79)

TROUBLESHOO
TING
6.15
Testing for a K11 SSR that is Stuck Open
1. Ensure the oven mode dial is in the off position.
2. Pull the insulated wire terminals back, but not
off , to expose the terminal on all four brown
wires of the relay.
3. Turn the oven mode dial to Bake to activate the
relay.
4. Apply the probes of the multi-meter across the
A1 and A2 terminals and B1 and B2 terminals
individually. A 208/240 reading will show an
open relay, 0 will show a closed relay.
Testing for a K12 SSR that is Stuck Open
1. Ensure the oven mode dial is in the off position.
2. Pull the insulated wire terminals back, but not
off , to expose the terminal on all four brown
wires of the relay.
3. Turn the oven mode dial to Broil to activate the
relay.
4. Apply the probes of the multi-meter across the
A1 and A2 terminals and B1 and B2 terminals
individually. A 208/240 reading will show an
open relay, 0 will show a closed relay.
Testing for a K13 Relay that is Stuck Open
1. Disconnect the two L2 blue wires from the K13
N.O. switch and the two L2 blue wires from the
K13 common. Turn the oven mode dial to Bake
to activate the K13 relay.
2. Apply the probes of the ohmmeter to the
common and N.O. terminals of the K13 relay
that are now exposed. Th
ey should register
continuity. If they do not, verify the relay is
receiving control voltage from the blue wires
that are still attached to the relay in the upper
left
corner.
3. If control voltage is present, replace the relay
and test the oven. If no voltage is present,
investigate for broken wires.
4. If the K13 relay is receiving control voltage and
is closing normally, L2 voltage is reaching the
elements.
Th e K11 and K12 solid state relays
will probably not both short in the open state,
so test the control board for control voltage
reaching the K11 and K12 SSR.