Blodgett Combi BC14E, Service And Repair Manual

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TROUBLESHOOTING
8---2
6. Check that relay R205 contacts 9 to 5 are
closed. Check coil and contacts for proper op-
eration. See FIGURE 3, location (C).
7. Check F6 high limit. See FIGURE 3, location (F).
8. Check that R204 contacts 9 to 1 are closed.
See FIGURE 3, location (E).
9. Check Solid State Contactor K3-B, is red LED
on? See FIGURE 3, location (H).
10. Check R200 contacts 9 to 1 are closed. See
FIGURE 3, location (H).
11. Check Solid State Contactor K3-A, is red LED
on? See FIGURE 3, location (H).
NO FILLING OF STEAM GENERATOR
1. Verify water is on to Synergy oven and flowing
through water restrictor.
2. Check mode switch positions 4, 10, and 22.
See FIGURE 7, location (A).
3. Check input and output to fast LLC (Low Level
Control) float. The LLC is the long float. See
FIGURE 7, location (B).
4. Check relay R204, coil, input and output. See
FIGURE 7.
5. Check fast fill solenoid. See FIGURE 7, loca-
tion (D).
6. Verify hot water slow fill is operating. See
FIGURE 7, locations (E) and (F).
NO OPERATION WITH THE MODE SWITCH IN
COMBI
Most of this circuit has already been trouble shot
by proving the HOT AIR and STEAM mode work.
1. Check T2 combi solid state timing relay input
and output. See FIGURE 4, location (A).
NO ON DEMAND STEAM
Set time out and press ON DEMAND STEAM button.
2. Check S9 on demand steam button. See
FIGURE 5, location (A).
3. Check input and output to T3 solid state timing
relay. See FIGURE 5, location (B).
4. Check relay R202 coil and contacts. See
FIGURE 5.
NO FLUSH / DRAIN MODE / MANUAL OR AUTO
The T4 flush/drain solid state timing relay is ener-
gized when the P11 flush disable snap-disk is
closed. Both of these parameters must be met for
the manual flush/drain switch to work.
NOTE: When the P11 flush diable snap-disk is
closed the steam generator is below 160
_
F
(71
_
C) and the oven is in the OFF position.
1. Check that the deliming switch (S15) is in the
off position. See FIGURE 6, location (A).
2. Check that the P11 contact is closed. See
FIGURE 6, location (B).
3. Check that relay R206 contacts are closed.
See FIGURE 6.
4.
Auto Flush/Drain
– Check T4 flush/drain solid
state timing relay inputs and outputs. See
FIGURE 6, location (H).
5.
Manual Flush/Drain
– Check S12 flush/drain
switch input and outputs. See FIGURE 6, loca-
tion (D).
6. Check R203 relay coil and contacts. See
FIGURE 6, location (E).
7. Check that R204 contacts are closed. See
FIGURE 6, location (G).
8. Check flush/fill solenoid.
NO MEAT PROBE OPERATION
The Synergy oven must be on and the timer set to
the stay on position. The meat probe must also be
plugged into the front control panel.
1. Check mode switch, terminals 4, 10, and 22.
See FIGURE 7, location (A).
2. Check S11 fuse. See FIGURE 7, location (J).
3. Check step down transformer XFMR inputs
and outputs. See FIGURE 7, location (L).
4. Check inputs and outputs of meat probe con-
troller. See FIGURE 9, location (M).
5. Check R5 relay coil and terminals. See
FIGURE 7, location (O).
6. Check T1 buzzer, FIGURE 4.