Troubleshooting Guide - Masterbuilt MWS 250S Mode D'emploi

Symptom
No power to controller
(No beep when plugged into outlet)
Power light not on
(Controller beeps when plugged in)
No display on controller
(Power light is on)
Heating light not on
Smoking light not on
Element not on
Meat probe does not read on control-
ler / Error code: "ERR1"
Meat probe does not read on control-
ler / Error code: "ERR2"
Meat probe temp is not accurate
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TROUBLESHOOTING GUIDE

Cause
Not plugged into outlet
House breaker tripped
Bad connection at controller
Controller fuse blown
Faulty controller
Appliance not powered on
Controller fuse blown
Faulty controller
Appliance not powered on
Faulty controller
Smoker in smoke cycle
Cook cycle not set
Faulty controller
Smoker in cook cycle
Smoke cycle not set
Faulty controller
The element is only on during the
intial ignition or reignition of the pellets
Bad connection to controller
Faulty element
Bad connection at "probe 1"
Faulty meat probe
Faulty controller
Bad connection at "probe 2"
Faulty meat probe
Faulty controller
Meat probe has residue build up on it
Perform meat probe calibration test
Faulty meat probe
Solution
Plug into power source.
Reset breaker.
Unplug connection and reconnect. Reference Controller access/
replacement instructions.
Reference "Controller Fuse Replacement" instructions.
Call Masterbuilt for replacement. Reference "Controller Access /
Replacement" instructions.
Press "ON/OFF" button.
Reference "Controller Fuse Replacement" instructions.
Call Masterbuilt for replacement. Reference "Controller Access /
Replacement" instructions.
Press "ON/OFF" button.
Call Masterbuilt for replacement. Reference "Controller Access /
Replacement" instructions.
Smoke light will be on. Once smoker has completed the set smoke
cycle the smoker will change to the cook cycle and the heating light
will turn on for the duration of the cook cycle.
Set Temp and Time per operation instructions.
Call Masterbuilt for replacement. Reference "Controller Access /
Replacement" instructions.
Smoker has completed the set smoke cycle and has changed to the
cook cycle and the heating light is on. Smoke light is only on during
the smoke cycle.
Set time per operation instructions.
Call Masterbuilt for replacement. Reference "Controller Access /
Replacement" instructions.
Reference "Element Check" instructions.
Unplug connection and reconnect. Reference "Controller Access /
Replacement" instructions.
Call Masterbuilt for replacement. Reference "Element Access /
Replacement" instructions.
Unplug connection and reconnect to controller at "probe 1." Press
"PROBE" button to scroll back to "probe 1", if ERR1 is still displayed
proceed to next solution.
Plug meat probe into "probe 2" and scroll back to "probe 2." If ERR2
is displayed meat probe is faulty, call Masterbuilt for replacement.
If meat probe is found to be good from the above 2 solution steps,
call Masterbuilt for replacement.
Unplug connection and reconnect to controller at "probe 2." Press
"PROBE" button to scroll back to "probe 2", if ERR2 is still displayed
proceed to next solution.
Plug meat probe into "probe 1" and scroll back to "probe 1." If ERR1
is displayed the meat probe is faulty, call Masterbuilt for replace-
ment.
If meat probe is found to be good from the above 2 solution steps,
call Masterbuilt for replacement controller. Reference "Controller
Access / Replacement" instructions.
Clean meat probe.
Reference "Meat Probe Temperature Verification" instructions. Meat
probe has a +/- 5°F (2.78°C) tolerance. Clean meat probe before
performing verfication.
Call Masterbuilt for replacement.