Fault Codes
The table below describes error codes and the corrective action.
Error #
Cause/Description
Corrective Action
1
Cannot communicate with thermocouple A/D converter (U3). Poten-
tially failed PC Board Component.
Turn unit off and back on again. If error persists, this may indicate a
failed PC Board component. Contact Antunes Technical Service for
assistance 877-392-7854.
2
Cannot detect power line zero cross. Potentially failed PC Board
Component.
3
Calibration check sum. Potentially failed PC Board Component.
4
Microprocessor I2C buss communications error. Potentially failed
PC Board Component.
5
Microprocessor I2C buss communications error. Potentially failed
PC Board Component.
6
Cannot communicate with Fram (U9). Potentially failed PC Board
Component.
7
Cannot communicate with TMP75 (board temp sensor) (U4). Poten-
tially failed PC Board Component.
8
On-board voltage reference in thermocouple circuit failed (U1).
Potentially failed PC Board Component.
9
Not used.
Not Used
10
Board temp sensor exceeds 158° F.
Verify vents on toaster are unblocked and not near other heated
appliances. If error persists, contact Antunes Technical Service for
assistance 877-392-7854.
11
Main Hi Limit tripped.
Reset Hi Limit, turn unit off and back on again. If error persists, con
-
tact Antunes Technical Service for assistance 877-392-7854.
12
Cannot measure power line voltage Failed on-board transformer
used for power control (T1).
Turn unit off and back on again. If error persists, contact Antunes
Technical Service for assistance 877-392-7854.
13
USB port voltage below 4.5V - Something plugged into USB port.
Remove anything connected to the USB port, turn unit off and back
on again. Turn unit off and back on again. If error persists, contact
Antunes Technical Service for assistance 877-392-7854.
14
Main platen has not reached set point within 20 minutes.
Turn unit off and back on again. If error persists, contact Antunes
Technical Service for assistance 877-392-7854.
15
Main platen has exceeded 650° F.
16
Main platen has fallen 50°F below set point after Ready state.
17
Main thermocouple failed (open).
18
Aux has fallen 50°F below set point after Ready state; will clear from
display if temperature recovers; error is logged into memory.
Make sure front and rear covers are in proper position. Turn unit
off and back on again. If error persists, contact Antunes Technical
Service for assistance 877-392-7854.
19
Auxiliary Heater exceeds 525° F.
20
Auxiliary Heater does not reach set point within 20 minutes.
21
Auxiliary thermocouple failed (open).
Turn unit off and back on again. If error persists, contact Antunes
Technical Service for assistance 877-392-7854.
22
Auxiliary Hi Limit (hardware circuit trips at 550°F which turns off
contactor; ER22 then shows within 2 seconds).
Turn unit off and back on again. If error persists, contact Antunes
Technical Service for assistance 877-392-7854.
23
Cannot communicate with motor microprocessor (U13).
Turn unit off and back on again. If error persists, this may indicate a
failed PC Board component. Contact Antunes Technical Service for
assistance 877-392-7854.
24
Motor stopped.
Make sure no buns are stuck in conveyors or any obstructions
around conveyors. Turn unit off and back on again. If error persists,
contact Antunes Technical Service for assistance 877-392-7854.
®
P/N 1011376 Rev. D 11/20
11
